Correct flywheel zz383

[chappys4life]

I have a 1970 c1500 that the motor just popped. I have a zz383 fresh from the machine shop i was going to use in my 55 chevy but looks like i will have to steal it until i can build a new motor. I had it setup for a flywheel and muncie but but now need a flexplate for a th350. Right now my starter is setup for a 168 tooth flexplate would be ideal but not a deal breaker.

Would gm 14088761 work for my application?

[PbFut]

the 168 tooth flex plate is in all configs needed. But you need to find out if the crank and block was set up for 1 or 2 piece rear main. Internal, or front, and or rear balance. Typically a ZZ383 is 1 piece seal and externally balanced on both ends. Harmonic balancer in front and flex plate or Flywheel at the rear will all need to be weighted.

[chappys4life]

Originally Posted by PbFut

the 168 tooth flex plate is in all configs needed. But you need to find out if the crank and block was set up for 1 or 2 piece rear main. Internal, or front, and or rear balance. Typically a ZZ383 is 1 piece seal and externally balanced on both ends. Harmonic balancer in front and flex plate or Flywheel at the rear will all need to be weighted.

It’s a 1 piece seal. On my flywheel I have weights. I found the factory Flexplate that was supposedly on the motor but don’t see any weights (previous owner burned a listed with nitrous)

[mr48chev]

If the crank is externally balanced the damper will either have extra weight in one area or be drilled to reduce weight opposit

[kwmech]

Any paperwork sitting around for this 383? part number?

[chappys4life]

Originally Posted by kwmech

Any paperwork sitting around for this 383? part number?

Part number is zz383. Found the pdf for the motor but only had the smaller flywheel listed. Called Scoggin Dickey and they confirmed gm 14088761 will work.