I already have the heads I'm going to use. The heads I have are #197. I wasn't after the big ports and valves but I was after the 111cc combustion chambers ( mine are now 114cc ) My research says these heads are off of a 1971 Ram Air IV 455

http://www.firebirdnest.com/index.php/15-2ndgen/transam/4-1971transam

This motor, with these heads was 8.4 to 1 I think the stock piston was a 34cc dish. My pistons, flat tops with four valve reliefs should give me around 9 or 9 1/2 to 1. I haven't done the math or checked the piston/deck yet. I don't think compression ratio will be a problem. But, something else...yeah maybe

1947 M15 Studebaker 454 4x4
1949 Chevy COE
In the Stovebolt Gallery
More pix of the COE
1950 Harley FL
1958 GMC LCF 455 3x2bbl
1961 Chevy C60 Tilt Cab 327
1966 Chevy C60 Tilt Cab 496
1961 Chevy K10 sb 292
1974 Harley FXE
1979 Chevy K10 sb
2007 Harley Streetglide


I'm not that good but I'm slow