440 hp and tq est

[72dualplug]

i built a 440 30 over h-beam rods trw 2295 pistons 10.8 comp cast crank 346 heads back cut valves with 208 174 rebuilt no porting no nuttin it has a rpm intake 800 demon old style 509 in at 102 1 7/8s headers 3in out back the with no mufflers in a 72 roadrunner

 

[ykf7b0]

At the flywheel I will estimate 500hp and 500 ft lbs torque. The heads being the limiting factor.

 

[bigmanjbmopar]

I have a similar set up, 2" headers, un worked aluminum heads, 780 cfm carb, 30 over, h beam stroker kit putting out 512 tq at the crank.

 

[Matrix2]

I have a similar setup as well, 10:1, alum eddy heads, 770 carb, 2" headers, get 500 hp and 520 tq. You probably are in the same neighborhood, maybe slightly less.