Peak HP from LA block w/ no problems

340mopar said
Heat is more HP related as opposed to cu in related. Even if you were at 500hp a 3 core 22" radiator will do just fine. The highest HP numbers are usually above 5000rpm and your cruise RPM will be in the 300hp range so I wouldn't sweat it.

Chuck

Thanks Chuck. I figured that would be the case. I wasnt sure if the extra cylinder pressure or piston speed would contribute.