GM 378450 MerCruiser 938-7482 Cylinder Head V8 305 5.0L Early 228 1977-1979 Trim Tab Parts If you are unsure what

If you are unsure what this means please feel free to ask

Mercury 400 40hp

please don't hesitate to ask me as there are some of these parts that were found on other MerCruiser engines as well

This will be drained EMPTY of gear oil before shipping and WILL NEED TO BE refilled before use

MerCruiser Sterndrive Alpha One Lower Unit Bearing Carrier Used in MerCruiser R / MR & Gen I (1983-1990) & also Gen II lower units 1991 & Up However

GM 378450 MerCruiser 938-7482 Cylinder Head V8 305 5.0L Early 228 1977-1979 Trim Tab Parts If you are unsure whatParts Included MerCruiser 938 6536 > 938 7482 GM Part Number 378450 Compatibility Generally the best practice is to just match your existing casting numbers. Found on MerCruiser OMC GM Chevy V8 305cid 5. 0L 4BBL Models > 228hp & 230hp with 4BBL Intake Models 1977 1979 at the latest as this is an early version of the 378450 (there was a later version with larger valves) Used with the standard 2 piece Rear Main Seal engines. Perimeter Bolt Valve Covers