1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 119Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 119

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377 CID6.2L ENGINES
1 Clean push rods and rocker arm assemblies2 Clean carbon from valves using wire wheel3 Clean gasket material from cylinder head mating surfaces4 Clean all carbon from combus