This is a 90782 Mercruiser oil adapter to go on 305, 350 Smallblock Chevy blocks and 454/502 MK4 Bigblock Chevy engines. This adapter has 1/2" NPT threads to accept oil hoses for remote oil filter and oil cooler. This is the body only with the 2 mounting bolts.
 NOTE** The triangular shaped  lower screw on cover is NOT INCLUDED**( Don't have any more)

We are Martin Engine Machine, located in Webster, NY. We are a complete Hi Performance engine machine shop and have been in the engine building business for over 35 years.