460
jesus7845
04-17-2004, 10:34 AM
how do I tell if my 460 is internaly or externaly balanced
97chevyman
04-18-2004, 02:13 PM
look at the flywheel, and see if you see a weight added on.
Mercracer
05-19-2004, 10:31 AM
1979 was the first year of the externally balanced 460. The crank is stamped 3Y on one of the counterweights. The top surfaces of the block, intake, and heads will have a casting date for the year of the engine.
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