New Classes in Stock AAA/SA, AAA/S and FS/AAA

Originally Posted by RKelliher

Nhra is now allowing 572 engines in 2022 copo camaro. Nhra rates this motor at 500hp. First the 572 was never installed in any chevy,it is a crate motor only. Also chevy rated it at 621hp not 500. We used to sell these thru the parts department.

GM won’t put it in unless it’s instantly competitive.