hp does olds 455 make

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scarborough

Master Mechanic
Sep 30, 2016
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does anyone have a ideal how much hp a olds 455 30 over stock piston with E heads 3angle valve job, edelbrock cam ,intake and 750 carb will make.
 
Torque comes with displacement generally. Hp is torque over a given timeframe.

Just putting a 455 together with stock 1970 spec parts you'll get 300hp. So bare minimum that. With your combo id say 400 is a good estimate. Got a dyno shop nearby? Wheel hp and/or 1/4 mile et will give you a good guess.
 
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What stock piston, the 40cc soup bowl dish or a smaller dish? The BBO Edelbrock Performer cam is generic and on the small side. The Performer intake and at least a 750 cfm carb is a good choice.
 
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If you're using TRW/Speed Pro pistons, .003-.004 piston to bore clearance. I'll agree with 400hp.

Call Bill Travato at BTR Performance in Rochester, NY for a cam. Have all your specs ready; he's going to ask. The Fel Pro head gaskets are .041, and that kills compression. Use some thin Cometics.
 
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If you're using TRW/Speed Pro pistons, .003-.004 piston to bore clearance. I'll agree with 400hp. Sorry about the bold it won't turn off.

Call Bill Travato at BTR Performance in Rochester, NY for a cam. Have all your specs ready; he's going to ask. The Fel Pro head gaskets are .041, and that kills compression. Use some thin Cometics.
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Torque comes with displacement generally. Hp is torque over a given timeframe.

Just putting a 455 together with stock 1970 spec parts you'll get 300hp. So bare minimum that. With your combo id say 400 is a good estimate. Got a dyno shop nearby? Wheel hp and/or 1/4 mile et will give you a good guess.

thinks for the feedback
 
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