I have my old "stock" rotating assembly for sale. It is basically a ZZ4 GM Crate Motor Forged Crank--stock dimensions--stock PM rods and stock pistons. It was all balanced as a unit (internally) and was a slick set up. Got me to 395 RWHP with Ai 190cc heads and cam.

Nary a problem with it other than a few "nicks" on top of the pistons from my timing chain episode a short time ago.

I paid $250 for the GM crank alone....before the balancing and machine work done to it. I would like to get $200 for the whole package....

Will entertain offers though.....

Sold! PM sent...