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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What kinda of power?

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Old Aug 6, 2010 | 10:54 AM
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Default What kinda of power?
just had my car built. I'm running ported stock heads, 1.6rr, beehive valve springs, forged 383, 36# injectors, ported intake, (stock tb for now), k&n cai, and xfi 280 cam. I was just wondering what kinda power it should put down after a good tune. there arnt any dynos around where im at.
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Old Aug 6, 2010 | 11:17 AM
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do you have manual or auto trans?
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Old Aug 6, 2010 | 11:19 AM
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6 speed. and i also have long tube headers.
Last edited by stevecritt; Aug 6, 2010 at 11:57 AM.
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Old Aug 7, 2010 | 04:46 PM
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with a tune(get a dyno tune if possible) i would think around 375-390 at the wheels. what do you guys think?
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Old Aug 9, 2010 | 03:41 PM
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Who ported the heads?
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Old Aug 9, 2010 | 03:46 PM
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Originally Posted by RamAir95TA
Who ported the heads?

X2, depending on flow, port velocity(sp), etc will really make or break you.

Did you get a flow sheet, does the shop have experience porting LT1 castings??


Your not giving us much to go on....
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Old Aug 9, 2010 | 04:53 PM
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closer ballpark depends on the head porting-who did it and what the specs are. An LE2 package from Elliotportworks advertises 370hp+ depending upon the cam, so these guy's estimates above are probably about spot on.

I'd agree with 375-390, maybe as much as 400?
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