I recently purchased a scat 383 stroker kit for my lt1..part # for the crank is9-350-3750-6000L..can someone please tell me if this crank will work in my block..I know its a 1 piece rear main seal.Are our 92-97 lt1s internal or externaly balanced?I have a feeling i messed up on this purchase..It was a impulse buy at the time..

 

Stock LT1 is externally balanced, using a counterweight on the flywheel (or flex plate). But it's possible to build the engine either internally or externally balanced.

 

Yes, that is the correct one piece rear crank for the late model blocks - although that is one of the cheap cast ones. It can be balanced either internal or external depending upon the bobweight figured on all your components - it will either require a slug of mallory with a neutral flywheel, or a few large drill holes with a stock style weighted flywheel.