Isn’t there a type of hardening that actually makes the steel a tiny bit bigger? That’d be just the thing for a tight fit!
Yes, The alloy headed LT1’s went to the Corvettes and Camaro’s
The big, “really big” Chevrolet, Buick and Cadillac sedans got the iron head version. And for size, check out the Roadmaster wagon!!! The iron head engines down a bit on HP and up a lot on torque and the band adjusted for it.
As the Cadila final ratio was 3.09, it was very close to my 2.88. Good match there. And heavy toi heavy, again, a good match. On the road, it works out. good punch, an loafs at freeway speed.
Carl