Best Mopar engine for SSGT?

[RJ]

RJ,

The 70 and 71 high compression 340's have a 2.02 intake valve. The 72 and 73 low compression 340's have a 1.88 intake valve. I am assuming heads with the 2.02 valve can flow substantially more air than the 1.88 with S/S style porting.

Charlie Walc ran one of the high compression 340's in S/S years ago. He said it was a fun car, but an expensive one.

Greg, for some reason NHRA says the 2.020" intake head requires the same intake port volume as the 1.880" valved heads, so I don't know there is much there once you sink the valve/fill in the floor. The piston is the only other difference, and I can get a piston weight at or below what the low compression 340's currently run.