I've got a 408 stroker with "slap-happy" forged Diamond flat-top pistons. It's so bad that when I pulled the heads recently, I noticed the bores had scuff marks on them.
The engine is about eight years old, but doesn't have too many miles on it. It doesn't burn oil, and goes quite well (400+rwhp). But part of being an older engine is the fact there weren't a lot of stroker pistons to choose from when it was built back in 2006.
The Diamonds are good, strong, light pistons, but they have short skirts, a lot of clearance when cold, and a fair amount of piston rock. They were clearanced for nitrous (which is obviously part of the problem) but I've never used it and won't be.
So I'm looking to replace the Diamonds with something quieter, made of 4032 instead of 2618 material.
Specifically, I'm looking at a set of Wiseco Pro Tru pistons.
Are they any good?
My main priority is a piston with less sidewall clearance when cold, as the car is driven frequently and only raced a few times a year, so usually runs a bit cooler. I know strokers are prone to piston slap by design, but does anyone have any experience with quieter forged (4032) pistons for small-block Mopars?
Thanks.