al rite

I ran a truck block with a 454 ch piston a >400 longer rod .030 over at 460 inches in my P/S chev Monza back in the mid seventies ran 8.002 at 169.98 mph

You will need to use pistons for 454ch with like a Eagle rod that is 6.660 length and then maybe AFR 325cc as cast heads 119cc 2.3 x 1.880 valves.

PM me for more info

Jerry
GMCLaytonRacing@msn.com