Originally Posted by Rocky1974
Not even close! The 70 LS6 454 Chevelle was the highest "rated" horsepower car of the muscle car era and that was 450 gross horsepower. If the Z/28 was rated in gross horse power, the number would be closer to 600 than 500.
Thats what it was "rated" at. I believe I read online somewhere that the LS6 in the 70 Chevelle was making close to around 510HP, don't recall where I saw that though.