C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Aug 27, 2005 | 04:07 AM
  #1  
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Default The goal

OK here is exactly what I am trying to achieve right now

365 +/- 5

the requirements

8.25:1 compression(8.7:1 is also a possibility)
Hydraulic roller cam
aluminum cylinderheads
dual plane intake
shorty headers of a 1.675 diameter

What I am leaning towards

AFR 180 heads
crane HR-276-2S-12 IG cam with 214/222 at .050 and .488/.509 lift
Weiand 8120 dual plane intake(clearence issues later down the line)
holley 750cfm 4150 carb
sanderson headers

Last edited by Guru_4_hire; Aug 27, 2005 at 08:49 AM.
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Old Aug 27, 2005 | 05:18 PM
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Originally Posted by Guru_4_hire
OK here is exactly what I am trying to achieve right now

365 +/- 5

the requirements

8.25:1 compression(8.7:1 is also a possibility)
Hydraulic roller cam
aluminum cylinderheads
dual plane intake
shorty headers of a 1.675 diameter

What I am leaning towards

AFR 180 heads
crane HR-276-2S-12 IG cam with 214/222 at .050 and .488/.509 lift
Weiand 8120 dual plane intake(clearence issues later down the line)
holley 750cfm 4150 carb
sanderson headers
Crane calls for that cam to be used with 8.75 - 10.5 CR. If you want to run less, you should call Crane's tech dept. for advice.
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Old Aug 27, 2005 | 06:37 PM
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already did
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Old Aug 27, 2005 | 07:16 PM
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I dont understand..why do you want to run such a low compression ratio?
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Old Aug 27, 2005 | 07:18 PM
  #5  
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If your going to supercharge it that CR is nice. If your not then it sucks.
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Old Aug 27, 2005 | 07:26 PM
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Originally Posted by Techno
If your going to supercharge it that CR is nice. If your not then it sucks.
Eventually yes.

Right now I am leaning toward the 8.7:1
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Old Aug 27, 2005 | 07:57 PM
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Originally Posted by carguy4sure
I dont understand..why do you want to run such a low compression ratio?
A high CR isn't everything.
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Old Aug 27, 2005 | 08:05 PM
  #8  
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Default If you are going forced induction, then you are

wasting your money on that nice of a head. forced induction reduces the value of great heads. about 365 hp on 8.5 or 8.7 compression, that's a tough formula to complete.
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Old Aug 28, 2005 | 12:00 AM
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Originally Posted by jackmoore
wasting your money on that nice of a head. forced induction reduces the value of great heads. about 365 hp on 8.5 or 8.7 compression, that's a tough formula to complete.
They arent that much more expensive than some competing aluminum heads
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