Effective immediately
The GM 602 crate engine WILL BE ALLOWED to run for the balance of the 2021 racing season in the Pure Stock division providing a Holley #4412
2 bbl 500 carburetor is used on it. The carburetor must have a completely stock base plate ASSEMBLY.
For the remainder of the 2021 season the top of the carburetor does not have to be gage legal.
This is a on track test to see exactly how these engines perform against current engine packages in competition.
ENGINE Must meet GM YELLOW BOOK SPECS.
We have done chassis dyno testing with the 602 engine and feel it is compatible to run with current engine packages.