MerCruiser Chevrolet GM 336781 BBC Cylinder Head Assembly V8 454 7.4L Oval Port Power Steering 2-1/2" crank hole 153 teeth

2-1/2" crank hole 153 teeth

Wix 33259 Fuel Filter Cartridge

GM 462624 Cylinder Head 76cc Chamber

but I would recommend replacement if you are performing this installation

This would have been found on OMC Stringer and Cobra GM Applications pretty much 1969-1990 120hp 2

MerCruiser Chevrolet GM 336781 BBC Cylinder Head Assembly V8 454 7.4L Oval Port Power Steering 2-1/2" crank hole 153 teethPart Number(s) Included GM 336781 Cylinder Head Assembly (Tapered Spark Plug holes Large Oval Intake Ports Heat Crossover) should be similar to the 049 & 186 cylinder heads) (73 90 Mark IV 10 Bolt Timing Cover 2 Piece Rear Main Seal Flat Tappet Engine with 2 bolt or 4 bolt main blocks with 289 casting number) Compatibility Generally, the best practice is to just match your existing casting numbers. Other Information Overall good condition, visually