500+ci Builder

IBSorgn said

I have a number of build lists for 600-750 hp but just can't find anything for 1 hp per ci. Build costs go up significantly as the HP goes up. Did not think it would be that hard to find specs on a "modest HP" build.

I wonder if maybe I could get some comments using some generic specs and see what members think or would that be to argumentative?

Click to expand...

Cubic inch don't build hp, air flow does, larger Cid engine just gonna make lower rpm Hp. A 550hp 500+ engine is probably similar top end parts list as a 550hp 440 just gonna take a 1000 less rpm to do it. I'd start with heads selection at the 2 cfm per hp rule would put you at 275 cfm heads but I'd look for a head that flows around 300 cfm at a reasonable lift to be able to go with a slightly smaller cam and compression ratio. Once you pick your heads you can zero on the cam needed. Since you want a lot of lower rpm torque a ported eddy rpm intake or something similar.