Xtreme High Flow 3/4" NPT Side Inlet Oil Block Adapter - Gen 5/6 BBC 

Xtreme High Flow 3/4" NPT Side Inlet Oil Block Adapter - Gen 5/6 BBC

​This Hardin Marine designed engine oil adapter is the preferred choice of the most respected engine builders worldwide. Manufactured from 6061-T6 billet aluminum, these adapters provide large 3/4" NPT horizontal side inlets and outlets while providing easy access for leak-proof operation. The black hard anodized finish is attractive while providing corrosion protection.