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Old 05-27-2013, 10:28 PM
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400 sbc hp

i have a 400 sbc 2 bolt main bored .40 over a 400 crankshaft and dishtop piston and the heads are #3970126 and edelbrock 650 four barrel carb and a edelbrock performer rpm air gap intake and a comp cam hyd flat tappet 275deh 275/277 219/229 @50 462/482 110 lobe can anybody tell me about the hp and torque

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Old 05-27-2013, 10:59 PM
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350/430 ish,not enough information.you need a bigger carb
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Old 05-28-2013, 02:57 PM
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So, you have no idea what the static compression ratio is, but you chose a camshaft anyway. Perfect.
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Old 05-28-2013, 04:59 PM
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400 sbc hp

the motor was already in the car when i got the car i will try to get some more information about it and thanks alot
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Old 05-28-2013, 07:20 PM
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400 sbc hp

sorry guys it's not a air gap intake it's just the performer rpm intake the guy said it has 9.5 to 1 compression hyperutectic piston 5.7 stroke rods shorty camaro headers i hope this helps and thanks agian
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Old 05-28-2013, 08:55 PM
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RPM....HP....TQ
2000...155...406
2500...195...410
3000...245...428
3500...281...422
4000...305...400
4500...307...358
5000...273...287

Peak volumetric efficiency 82.6% @3500
Peak BMEP 161.1 lbs @3000
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Old 05-28-2013, 09:52 PM
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400 sbc hp

thank you sir
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Old 06-04-2013, 11:47 AM
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400 sbc hp

if i can change heads with 3991492 or 3947041 or keep the heads i have now whats the better head out of the three
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