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View Full Version : ?How to Convert Merc 230/GM305 Set up to 350 Block Engine



doug hess
02-11-2002, 03:22 PM
What is needed to upgrad or convert Merc MCM 230 engine with GM 305 bock to GM 350 block., Merc 5.7 type setup?

The Chevy 350 is a new style 1992, with 1 piece rear main bearing, 1 piece rear seal and center bolt valve covers. It has flywheel from stick shift, not auto transmission. Aluminum oil pan

Can I use the same coupler, manifolds, oil pan, etc.

Doug

RickSE
02-13-2002, 10:29 AM
All the external stuff should bolt on. Exception may be the oil pan. Make sure your dip stick is on the correct side, GM switched the dip stick location at one point.