Well I have a sbc flywheel sitting and was wondering if it's the same as a bbc flywheel. The bbc it would be going into is a 72 454 with a sm465 and the sbc flywheel came out of a 76 350 with a sm465. So will the sbc flywheel work on the bbc?
no, 454 are externaly balanced, and before you ask, no a 400 will not work.
and no you cannot use a 366/427td, 396, 427 flywheel either.
the 454 take a very very specific fly wheel that idealy has to balanced to the motor, if you motor is stock pistons, crank and rods then you can get a over the counter fly wheel, if you has swapped in new pistons or anything else you wheel need it all balanced together. it will shake like michal j. fox on speed if you dont get the right one.
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