Accessories - Lightning Headers

Lightning Marine Exhaust Headers

We carry a full line of Lightning Headers! Lightning headers are some of the finest fresh and salt water headers available today!

Lightning Anti-Reversion Header Extension
Your Price:
$150.00

Lightning Anti-Reversion Header Extension

310-40425

This option is available on all new header orders. By extending the headers inner collector Lightning can solve some of the problems found on engines using a camshaft just on the borderline of too big. This is a very cost effective option for anyone with a modified camshaft application.

Standard Big Block Chevy Freshwater Merc Headers 36" Wide
Starting From:
$1,999.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy Freshwater Merc Headers 36" Wide

310-40 + Option(s)

Standard Big Block Chevy Freshwater Merc Kit 36" Wide

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel waterjacketed headers. For the thousands of pleasure boaters "NOT" affected by thecorrosion problems associated with Salt Water there is at last the availabilityof a true tubular header system for the Fresh Water boater. These headers aredesigned to be a replacement for Mercury, OMC or jet manifolds. However, theyterminate approximately 8" aft of stock manifolds and are projected to meet theexhaust tips providing they are in the stock location. Low Port Headers are alsoavailable for under the swim step applications. Standard width headers will haveabout 1/2" clearance between header and tall style Moroso valve cover. Headerscome complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hoseand 4" hose clamps). Factory oil filter requires relocation.

THE LIGHTNING CONSTRUCTION DIFFERENCE IS WHAT COUNTS !
Our Magnum header starts with Mandrel bent 316L stainless steel interiortubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). Thetubes are then mechanically etched by sand blasting and then assembled. Finally,a corrosion resistant silicone ceramic coating is applied to the interior of theheader while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a DualPorcelain Coating that resists corrosive water environments. Now able to applythe same high tech coating to the fresh water series of steel outer lined thusaiding in the prevention cracking and deterioration.


Below Swim Platform Low Port Exit Jacketed Headers - 454/502 Chevy
Starting From:
$2,399.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy Low Port Exit Jacketed Headers 36" Wide

310-40 + Option(s)

Below Swim Platform Low Port Exit Jacketed System - 454/502 Chevy Low Port Headers 36" Wide

These headers are designed to be a replacement for Mercury, OMC or jet manifolds whenthe exhaust ports are mounted low in the boat. For example, under the swim step or whenelbows are used with the stock manifolds. Headers will have about 1/2" clearance between headerand tall Moroso valve covers. Headers come complete with bolts, gaskets, water fittings, petcocks, 4" elbows for bottom, etc. (less 4" hose and 4" hose clamps). Factory oil filterrequires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Standard Jacketed Header - S/B Chevy 350 Mercury 31" Wide
Starting From:
$2,099.99
This Part has options, please click the button below to order.

Lightning GM LS 4.8, 5.3, 6.0, 6.2, 7.0L Fresh Water Jet Headers

310-40 + Option(s)

Standard Jacketed Header - S/B Chevy LS1 Jet Boat

These headers are designed to be a replacement for Mercury, OMC or jet manifolds. However, they terminate approximately 8" aft of stock manifolds and are projected to meet the exhaust tips providing they are in the stock location. Headers will have about 1/2" clearance between header and tall Moroso valve covers. Headers come complete with bolts, gaskets, waterfittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of your engine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but the actual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaust gas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it gets reduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openings consider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain up to 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Standard Jacketed Header - S/B Chevy 350 Mercury 31" Wide
Starting From:
$2,099.99
This Part has options, please click the button below to order.

Lightning GM LS 4.8, 5.3, 6.0, 6.2, 7.0L Fresh Water Mercury Bravo Headers

310-40 + Option(s)

Standard Jacketed Header - S/B Chevy LS1 Mercury

These headers are designed to be a replacement for Mercury, OMC or jet manifolds. However, they terminate approximately 8" aft of stock manifolds and are projected to meet the exhaust tips providing they are in the stock location. Headers will have about 1/2" clearance between header and tall Moroso valve covers. Headers come complete with bolts, gaskets, waterfittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of your engine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but the actual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaust gas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it gets reduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openings consider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain up to 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Lightning Silent Choice Big Block Chevy Headers 36" Wide
Starting From:
$2,999.99
This Part has options, please click the button below to order.

Lightning Silent Choice Big Block Chevy Headers 36" Wide

310-40 + Option(s)

Silent Choice Jacketed Header System - Lightning Silent Choice Big Block Chevy 36" Wide

Our 40322, 40324 and 40326 headers incorporate the end of the header with the silent choicevalve. The 40322 uses the air operated actuators from the Mercury valves. The 40324 and 40326 useselectric solenoids supplied to operate the valves. Headers will have about 1/2" clearance between headerand tall Moroso valve covers. Headers come complete with bolts, gaskets, water fittings, pet cocks,exhaust valves, 5" hose and clamps (less 4" hose and 4" hose clamps). Note: you cannot operate HPengines at high rpm's with valve shut. Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Standard Jacketed Header - S/B Chevy 350 Mercury 31" Wide
Starting From:
$2,299.99
This Part has options, please click the button below to order.

Lightning Small Block Chevy 350 Mercury 31.5" Wide Headers

310-40 + Option(s)

Standard Jacketed Header - S/B Chevy 350 Mercury 31.5" Wide

These headers are designed to be a replacement for Mercury, OMC or jet manifolds.However, they terminate approximately 8" aft of stock manifolds and are projected to meet theexhaust tips providing they are in the stock location. Headers will have about 1/2" clearancebetween header and tall Moroso valve covers. Headers come complete with bolts, gaskets, waterfittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Small Block Chevy Lightning Header Adapter Gaskets
Your Price:
$29.99

Small Block Chevy Lightning Header Adapter Gaskets

310-40414

Small Block Chevy Lightning Header Adapter Gaskets- Sold in Pairs

Designed to be used with the adapter plates on SBC Lightning Headers.

Sold in Pairs

460 Ford OMC Headers 39" Wide
Your Price:
$2,299.99

460 Ford OMC Headers 39" Wide

310-40206

460 Ford OMC Kit 39" Wide, Uses Billet Adapters (Silver)b>

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel water jacketed headers. For the thousands of pleasure boaters "NOT" affected by the corrosion problems associated with Salt Water there is at last the availability of a true tubular header system for the Fresh Water boater. These headers are designed to be a replacement for Mercury, OMC or jet manifolds. However, they terminate approximately 8" aft of stock manifolds and are projected to meet the exhaust tips providing they are in the stock location. Low Port Headers are also available for under the swim step applications. Standard width headers will have about 1/2" clearance between header and tall style Moroso valve cover. Headers come complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

THE LIGHTNING CONSTRUCTION DIFFERENCE IS WHAT COUNTS !
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists corrosive water environments. Now able to apply the same high tech coating to the fresh water series of steel outer lined thus aiding in the prevention cracking and deterioration.


Custom Rail Style Engine Mount Kit
Your Price:
$1,195.99

Custom Rail Style Engine Mount Kit

620-10002

Custom Rail Style Engine Mount Kit

This race-designed kit is the ultimate in engine mounting. Super strength 6061-T6 aluminum plate mounts. Competition proven performance, ideal for high performance ski boats. Highly polished and comes with polished mounting feet. These are semi-custom designed to your boat. Available in anodized and coated finishes. Please call for applications. Final fitting is customers responsibility. Allow 6-8 Weeks for delivery.

Custom Rail Style Engine Mount Kit
Your Price:
$209.99

Front Mount Plate - Universal Big Block Chevy

620-10010

Front Mount Plate - Universal Big Block Chevy

454 Chevy front V-bottom mount is fabricated from 3/8" 6061 T6 aluminum and highly polished. A window is cut into the left side of the mount for mechanical fuel pump.  Port and starboard alternator provisions are available.  Note that water injected headers will drip on port mounted alternators.  Mount is 26" wide and 3 3/4" deep from crankshaft centerline to the bottom of mount.  Together with the rear V-bottom mount it will put the engine at a 4 degree angle.  Tunnel and flat bottom mounts available, please call for more information.

BBC 36" Wide Reduced Water Headers
Starting From:
$2,199.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy 36" Wide Reduced Water Headers

310-40 + Option(s)

Reduced Water Distribution Header - BBC 36" Wide Reduced Water Headers

Reduced water helps reduce reversion by reducingexhaust stream water. Only enough water enters the exhaust tokeep hoses, etc. cool. The remainder gets dumped overboard via a3/4" fitting at the end of header. This is the only option that will helpthe silent choice system. Oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


BBC Jacketed Headers with Stainless Dry Pipe
Your Price:
$2,499.99

Lightning Big Block Chevy Jacketed Headers with Stainless Dry Pipe 36" Wide

310-40407

BBC Jacketed Headers with Stainless Dry Pipe

Dry stainless steel jacketed tailpipes eliminate reversion totally. 4-1/2" diameter tail pipe protrudes past transom approximately 6", jacketed. Can be designed to exit water prior to transom or at end of tip. Very, very loud.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of your engine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but the actual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaust gas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it gets reduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openings consider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in. That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain up to 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option they are able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Standard Big Block Chevy Freshwater Merc Headers 33" Wide
Starting From:
$2,399.99
This Part has options, please click the button below to order.

Lightning Narrow Big Block Chevy Freshwater Merc Headers 33" Wide

310-40 + Option(s)

Standard Big Block Chevy Freshwater Merc Kit 33" Wide

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel waterjacketed headers. For the thousands of pleasure boaters "NOT" affected by thecorrosion problems associated with Salt Water there is at last the availabilityof a true tubular header system for the Fresh Water boater. These headers aredesigned to be a replacement for Mercury, OMC or jet manifolds. However, theyterminate approximately 8" aft of stock manifolds and are projected to meet theexhaust tips providing they are in the stock location. Low Port Headers are alsoavailable for under the swim step applications. Standard width headers will haveabout 1/2" clearance between header and tall style Moroso valve cover. Headerscome complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hoseand 4" hose clamps). Factory oil filter requires relocation.

THE LIGHTNING CONSTRUCTION DIFFERENCE IS WHAT COUNTS !
Our Magnum header starts with Mandrel bent 316L stainless steel interiortubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). Thetubes are then mechanically etched by sand blasting and then assembled. Finally,a corrosion resistant silicone ceramic coating is applied to the interior of theheader while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a DualPorcelain Coating that resists corrosive water environments. Now able to applythe same high tech coating to the fresh water series of steel outer lined thusaiding in the prevention cracking and deterioration.


460 Ford Jet Drive Headers 39" Wide
Your Price:
$2,299.99

460 Ford Jet Drive Headers 39" Wide

310-40207

460 Ford Jet Drive Kit 39" Wide, Uses Billet Adapters (Silver)

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel waterjacketed headers. For the thousands of pleasure boaters "NOT" affected by thecorrosion problems associated with Salt Water there is at last the availabilityof a true tubular header system for the Fresh Water boater. These headers aredesigned to be a replacement for Mercury, OMC or jet manifolds. However, theyterminate approximately 8" aft of stock manifolds and are projected to meet theexhaust tips providing they are in the stock location. Low Port Headers are alsoavailable for under the swim step applications. Standard width headers will haveabout 1/2" clearance between header and tall style Moroso valve cover. Headerscome complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hoseand 4" hose clamps). Factory oil filter requires relocation.

THE LIGHTNING CONSTRUCTION DIFFERENCE IS WHAT COUNTS !

Our Magnum header starts with Mandrel bent 316L stainless steel interiortubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). Thetubes are then mechanically etched by sand blasting and then assembled. Finally,a corrosion resistant silicone ceramic coating is applied to the interior of theheader while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a DualPorcelain Coating that resists corrosive water environments. Now able to applythe same high tech coating to the fresh water series of steel outer lined thusaiding in the prevention cracking and deterioration.


Below Swim Platform Low Port Exit Jacketed Headers - 460 Ford

Your Price:
$2,699.99

Below Swim Platform Low Port Exit Jacketed Headers - 460 Ford

310-40315 + Option(s)

Below Swim Platform Low Port Exit Jacketed System - 460 Ford Low Port Headers 39" Wide (uses billet adapters)

These headers are designed to be a replacement for Mercury, OMC or jet manifolds whenthe exhaust ports are mounted low in the boat. For example, under the swim step or whenelbows are used with the stock manifolds. Headers will have about 1/2" clearance between headerand tall Moroso valve covers. Headers come complete with bolts, gaskets, water fittings, petcocks, 4" elbows for bottom, etc. (less 4" hose and 4" hose clamps). Factory oil filterrequires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Below Swim Platform Low Port Exit Jacketed System - S/B Chevy 350

Your Price:
$2,999.99

Below Swim Platform Low Port Exit Jacketed System - S/B Chevy 350

310-40332 + Option(s)

Below Swim Platform Low Port Exit Jacketed System - S/B Chevy 350 Low Port Header 31" Wide

These headers are designed to be a replacement for Mercury, OMC or jet manifolds when the exhaust ports are mounted low in the boat. For example, under the swim step or when elbows are used with the stock manifolds. Headers will have about 1/2" clearance between header and tall Moroso valve covers. Headers come complete with bolts, gaskets, water fittings, pet cocks, 4" elbows for bottom, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of your engine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but the actual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaust gas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it gets reduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openings consider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in. That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330 hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain up to 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option they are able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Big Block Ford 460 Freshwater Low Port Headers 39" Wide, 12" Drop
Your Price:
$2,599.99

Big Block Ford 460 Freshwater Low Port Headers 39" Wide, 12" Drop

310-40215

Big Block Ford 460 Freshwater Low Port Kit 39" Wide, 12" Drop, Uses Billet Adapters (Silver) (SS Version Pictured)

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel water jacketed headers. For the thousands of pleasure boaters "NOT" affected by the corrosion problems associated with Salt Water there is at last the availability of a true tubular header system for the Fresh Water boater. These headers are designed to be a replacement for Mercury, OMC or jet manifolds. However, they terminate approximately 8" aft of stock manifolds and are projected to meet the exhaust tips providing they are in the stock location. Low Port Headers are also available for under the swim step applications. Standard width headers will have about 1/2" clearance between header and tall style Moroso valve cover. Headers come complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

THE LIGHTNING CONSTRUCTION DIFFERENCE IS WHAT COUNTS !
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists corrosive water environments. Now able to apply the same high tech coating to the fresh water series of steel outer lined thus aiding in the prevention cracking and deterioration.


Standard Jacketed Header - 496 8.1L Mercury 37" Wide
Starting From:
$2,399.99
This Part has options, please click the button below to order.

Lightning 496 8.1L Mercury 37" Wide Freshwater Headers

310-40 + Option(s)

  • Replacement for Mercury 496 Manifolds
  • For Freshwater Applications
  • Comes complete with bolts, gaskets, water fittings.
  • Includes Shift and oil filter bracket
  • 2" Primary Tube
  • 37" Wide, see specs for detailed measurements
  • See Additional info for more details on Lightning Headers


Big Block 496 8.1L All Stainless Steel Mercury Headers
Starting From:
$3,499.99
This Part has options, please click the button below to order.

Lightning 496 8.1L Mercury 37" Wide Stainless Steel Headers

310-403 + Option(s)

  • Replacement for Mercury 496 Manifolds
  • Stainless Steel Construction for Saltwater Applications
  • Comes complete with bolts, gaskets, water fittings.
  • Includes Shift and oil filter bracket
  • 2" Primary Tube
  • 37" Wide, see specs for detailed measurements
  • See Additional info for more details on Lightning Headers