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Another "how much power gain" question

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Old Nov 28, 2013 | 10:34 AM
  #1  
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Another "how much power gain" question

Ive been holding off on asking the question to wait till i get the motor built and put in and dyno'ed......but i cant keep wondering anymore how much power my engine build will net. I'm hoping for around 350-375 for the following:

-350 block (its a 2 bolt main, GM crate motor similar to what was in the pickups around 93 i think)
-Summit Racing Aluminum heads
----62cc chamber
----intake 170cc
----exhaust 69cc
----intake valve: 2.020"
----exhaust valve: 1.600"
----max lift: 0.490"
-Crane 2032 cam
-SLP intake runners
-Port/Polish intake manifold
-Cool Air / T.B. air splitter
-Hooker shorty Headers
-"super chip" burned by a member here
-electric exhaust cutout

I feel like i'm forgetting something but i doubt it. I have all the parts at my parents, but its a little chilly to be building the motor outside in NJ when its just about December lol. I'm sure i'm way off on my hopeful number, but 350 hp would bring a smile to my face since all this car has known is a worn 305.

Thanks guys
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Old Nov 28, 2013 | 08:38 PM
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Another "how much power gain" question

Better info would be the head flow #'s and the CR
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Old Nov 28, 2013 | 09:52 PM
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Engine: Vortec 4200 Inline 6 PT70 Turbo..
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Re: Another "how much power gain" question

300+ at the wheels would be my guess. Good compression?
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Old Nov 29, 2013 | 08:54 AM
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Re: Another "how much power gain" question

i couldnt find any info on the compression or the flow #'s cuz really no one has tried them. I'm hoping that with the 62cc combustion chamber, and the size of the valves, it'll boost the compression around 10:1 area.
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Old Nov 30, 2013 | 12:47 AM
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Another "how much power gain" question

Originally Posted by racerx520
i couldnt find any info on the compression or the flow #'s cuz really no one has tried them.
http://www.carcraft.com/techarticles...t/viewall.html
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