The 292 flywheel does not need special balance. It uses a neutral
balance flywheel, just like the other straight 6 and most older v-8
Chevy engines. Some of the 292s had a different flange setup, with
larger bolts and 3 dowels instead of just one.
The only Chevy flywheels that do need to be balanced to match the crank
are the 400 small block, 454, and the 87-newer V-8s and 4.3 V-6s with
the small crank flange. Actually, these don't need to be balanced with
the crank, they just need to be the correct flywheel, as they have a
counteweight that affects engine balance.
Jim
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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