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G8 headers

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Old Oct 4, 2010 | 10:56 PM
  #1  
90-irocdx3's Avatar
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From: santa barbara,ca
Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
G8 headers

I am looking at these g8 headers, because i am going to do a ls3 swap in a few months. I would like to stay with shorty headers to stay some what legal. here is a pic of the g8 headers. they are 1 7/8 with a 3 inch collector. I imagine they would out flow the manifolds by a good amount. Anybody think these headers would work?
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Old Oct 4, 2010 | 11:14 PM
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: G8 headers

drivers side is iffy with the steering shaft IMO.
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Old Oct 4, 2010 | 11:59 PM
  #3  
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From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: G8 headers

Depending on the price, that would be sick if they fit.
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Old Oct 5, 2010 | 02:52 PM
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From: Northern NJ
Car: 89 Formula / 09 G8
Engine: LS1 / LS3
Transmission: M6 / M6
Axle/Gears: 3:42 / 3:27
Re: G8 headers

I know the G8 doesn't benefit very much from shorties. The weird 90 deg pup cat is a bad restriction at the manifold. The $/HP ratio isn't there to justify shorties either.

It would be nice if they fit (or hawks redesigned their skid tube headers) because it would at least give us another option... Which is where I think you're coming from.
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Old Oct 5, 2010 | 07:38 PM
  #5  
88 350 tpi formula's Avatar
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From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
Re: G8 headers

Originally Posted by Omega
I know the G8 doesn't benefit very much from shorties. The weird 90 deg pup cat is a bad restriction at the manifold. The $/HP ratio isn't there to justify shorties either.

It would be nice if they fit (or hawks redesigned their skid tube headers) because it would at least give us another option... Which is where I think you're coming from.

not to hijack but I thought the hawks cleared just as much as the hookers? I had a set of hookers and i have to say they honestly didn't hang any lower than the factory y-pipe well they hung lower on ave. but as far as the lowest spot the factory y was lower on our cars.. so if the hawks really aren't any lower than why are they skids? just asking
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Old Oct 28, 2011 | 12:55 AM
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Re: G8 headers

Im sorry to bring back an old thread but did anybody try this?
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Old Oct 28, 2011 | 01:01 AM
  #7  
90-irocdx3's Avatar
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From: santa barbara,ca
Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
Re: G8 headers

no, i bought 2" longtube headers. it is just better to buy the hawks headers. you get what u pay for. my hawks are the best quality header i have seen.
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