Re: 572 questions / Help
Get compression up almost 2 points and put a decent sized cam in it and it will wake it up. Whose idea was it to use flat top pistons? You have good heads and rotating assembly, don't throw out the baby with the bathwater. Next time use some performance pistons - every Keith Black I've held felt like a brick compared to more modern designs.
If you have to have current headers altered or customs built for the 572, down time could be even longer than a rebuild with new pistons and a cam.
Drive it this summer and pull it in the dead of winter when you might not be driving it anyway.
The hydraulic roller 572 is a candy ass in my opinion anyway. Any engine builder worth his salt can build a 700+hp hydraulic roller 565 without breaking a sweat. GM's heads are a big restriction. Your 496 could probably do 660...
Organized people are just too lazy to look for their stuff...