Well Summit has been pretty helpful with everything I've had to replace on an easy-to-use website. They've also been great about returns. I had to return a flywheel and I talked them into giving me a complete refund because they listed it somewhat confusingly on their site.

I dd just go ahead and order the clevite 399s which I'll get to the machine shop ASAP


69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.