500hp & 600hp Bench Racing thread

273 said

Just curious

What would your 500 hp combo’s be for a 0.060” overbored 340 block so 4.10” with each one of these strokes 2.96”, 3.58” & 4”

and what would your 600 hp combo be for a 4.375” bore 400/440 block with these strokes 3.38”, 3.75” & 4.25” ?

shooting for pretty close to those hp goals for each.

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I’m not big on quoting Hp numbers because I don’t trust dyno numbers. For the 4.100 bore 340 and 4 inch crank I feel it’s over 500 horsepower running 5.98 in the 1/8 and 9.42 in the 1/4.

according to Direct Connection my .030 over 440 with a stock crank ran 9.82 back in the 1980’s and should be close to 600 Hp. with 906 heads, stock rods, TRW pistons, .750 lift roller cam, tunnel ram with two 750 Holleys. Just think what todays heads would run on that combo.