Joined: Oct 2018

Posts: 22

I’m doing a 383 for a 97 Camaro.my question is what flywheel and balancer is used? Do you still use the 350 flywheel and balancer or do I need to buy ones for the 3.75 crank? In an old school small block you woul have to run a 400 flywheel and balancer for a 383,so just wanna make shur I get rite parts because I just took engine down to machine shop and my machinist wasn’t shur either.let me kno thanks.

Joined: Jul 2005

Posts: 9,507

From: Okemos, MI

The manufacturer of your new crankshaft will have the most reliable information on this.

Joined: Nov 1998

Posts: 71,086

From: Hell was full so they sent me to NJ

Assuming you are doing an LT1 build, if are using a 1-piece rear main seal crankshaft, you need a flywheel with a specific balance weight to compensate for the missing piece of the end flange on the crank that allows the rear main seal to be installed. The front harmonic damper/pulley (not a “balancer”) is neutral balanced.

See post #4 in this thread:

https://www.camaroz28.com/forums/3rd...6/#post6987414

Joined: Oct 2018

Posts: 22

Ok so, it’s lt1 based yes.it a used crank n rods i bought out of another lt383 set up... I was reading up on so other posts,and read that all 86 and up 1 peice cranks are neutral balance in the front and external in the rear,meaning the stock flexplate that’s weighted and the stock pulley should be right for application??? Correct

Joined: Apr 2007

Posts: 425