I recently purchased a 383 rotating assembly for my engine. It says its internally balanced so I would need a neutral balancer and I'm guessing neutral flexplate. I swapped out my auto for a t56 transmission. Are the LT1 flywheels neutrally balanced and will the stock balancer work or do I need to order a new balancer? How can I tell if the flywheel is external or neutrally balanced? When I installed the transmission when the original crank was in the car, it had a small counterweight on the crank and the lt1 flywheel had a hole that fit right on that counterweight.

 

Is it a balanced kit? 1 piece or 2 piece RMS?

 

It is not a balanced kit. I called scat and they said it was neutral in the front and external in the rear. Its a 1 RMS. The thing is summit advertises that it's internal balanced and scat sight says BIE. Can it be balanced both ways?

 

Anyone else have any info to the post? Again is the stock balancer neutral or do I need a new one? I looked at the back of the flywheel and it has burrows where is looks like it was balanced on the lt1 engine.

 

what kit are you using, i recently got one of their kits and went and had it balanced

 

I have the 1-41755; 383 forged crank, forged rods, forged aluminum dish pistons, 9.8cr with 64cc heads.

Did you have to use your stock balancer or get a new on that was neutral?

 

i bought a neutral flexplate and balancer and had it balanced at a machine shop