1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 13Get this manual
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COOLING SYSTEM Section 6ASeawater Cooling System
Section 7BManifolds, Elbows And Risers
Table of Contents Torque Specifications LubricantsSealantsAdhesives Disassembly 7B-1 7B-2 7B-2 7B-2