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Old 01-05-2019, 12:01 PM
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1957 Chevy with 350ci SBC HP Rating

I have purchased a 1957 chevy with a 350ci SBC. It has the following upgrades. Edelbrock ( RPM AL 64CC Heads, RPM 488-510 Lift Hydraulic Camshaft, Air-Gap Intake Manifold). Rockers Harland Roller 1.5 Ratio, Demon 650 Carburetor, 202-160 Stainless Valves, MSD w/MSD 6A Ignition Box & Coil. Compression Ratio is 9.5-1.
Is there a way to figure out what the Engine HP is without spending a buch of money to get a Rea-wheel Dyno Test done?

Thanks,
Dan

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Old 01-05-2019, 12:22 PM
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You basically have the edelbrock rpm package. Go to the edelbrock page and look up what they say

Should be in the ballpark
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Old 01-05-2019, 03:21 PM
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I'd estimate Flywheel HP at about 365-385 HP with about 420-440 ft.lbs torque

How much lower rear wheel dyno figures would be depends on transmission and rear axle efficiency, manual trans is better than an automatic. Should come close to 300 HP at the tire, maybe a bit more.
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Old 01-05-2019, 03:42 PM
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How many decals do you have on her? We can add those up and give you a total. Honest - I'm not kidding.


Anyway Super Chevy did one similar to this although they used a Edelbrock carb and a touch less cam. On the engine dyno they squeaked out 395 HP, so depending on the transmission factor, 300-325 at the rear wheel is probable.
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Old 01-05-2019, 07:20 PM
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1957 Chevy with 350ci SBC HP Rating

Thanks everyone for your input I sure appreciate it!!!!

This was a big help!!!

Take Care!

Dan
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