MerCruiser Chevy GM 3.8L V6 185hp 229 Rocker Valve Cover 42758 42757 1983 1984 Wiring Harness 90577 Base Assembly

90577 Base Assembly

330hp GM 454 V-8 1977-1981 4623115 THRU 6083144

These are for OMC GM engines only

Used in many if not all OMC GM V6 & V8 applications 1986-1996

MIE 340HP) - NOT SUITABLE FOR SBC (305 / 350) APPLICATIONS THAT ALSO HAVE THE 87110 CASTING AS THE HOLES ARE DRILLED IN THE WRONG POSITION

MerCruiser Chevy GM 3.8L V6 185hp 229 Rocker Valve Cover 42758 42757 1983 1984 Wiring Harness 90577 Base AssemblyItem Details Used from 1983 1984 on MerCruiser Alpha One 3. 8L V6 185hp 4bbl 229CID engine applications Includes Support Brackets as pictured. One of the Grommets that hold the vent hose connector to the valve covers is missing (25 52188) Original Paint MerCruiser Part Numbers are 42758 (right) & 42757 (left) Yours should look just like this. (please inspect yours closely to make sure it's the same, or If you need any dimensions or other information