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Headers on lg4

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Old Dec 29, 2003 | 03:42 PM
  #1  
Fastcam's Avatar
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Joined: Apr 2003
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From: New York
Car: 1986 Z28
Engine: 305 LG4
Transmission: 700 R4
Headers on lg4

I was wondering what the difference between the lg4 headers and the other tpi and ho ones?? Some one said to go with ones from the tpi but will they fit a lg4? Ya im trying to make my lg4 have a little more go.. Will these work?These
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Old Dec 29, 2003 | 03:57 PM
  #2  
scottland's Avatar
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Joined: Mar 2002
Posts: 857
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From: Phoenix, AZ
Car: '82 Z28
Engine: 350HO
Transmission: M4
LOL, the picture is a little off. and the headers are for a dual cat car.

the picture is of V6 headers, and that would leave quite the exhaust leak.

but yes, you definatly want to go with headers for a TPI car. despite the fact you have a LG4, and they will bolt up fine.

go with something like this.

http://store.summitracing.com/partde...art=HOK%2D2055

parts # HOK-2055

Hooker super comps. comes with the y-pipe.

everyone that buys them, seems to love them

Last edited by scottland; Dec 29, 2003 at 04:01 PM.
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Old Dec 29, 2003 | 05:11 PM
  #3  
JamesC's Avatar
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
The 305HO (L69) headers will work as well. Some, like Edelbrock's TES headers, provide the air tubes, heat stove, etc. (As I recall, the TPI air tubes face the wrong direction for a carbed car). Check Summit EDL-6874. I swapped the L69 stuff on to my LG4, and while headers would no doubt be better, I'm smilin. Note the day-and-night difference between stock LG4 and the L69 y-pipe below.

JamesC

Last edited by JamesC; Dec 29, 2003 at 05:27 PM.
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Old Dec 29, 2003 | 05:13 PM
  #4  
JamesC's Avatar
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Oops, my bad.

JamesC
Attached Thumbnails Headers on lg4-ypipe.jpg  
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Old Dec 29, 2003 | 07:23 PM
  #5  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Yes, the 2055's will work fine. Only the driver's side A.I.R. faces the wrong way.

I hope you realize the entire LG4 exhaust stinks. Get rid of it all. The 2055's won't bolt right up to the LG4 exhaust anyway, so get a full TPI single-cat set-up while you're at it.

IIRC, the TES dual-cat set is less in Summit than the single-cat application. But, it's been a long time since I checked (and I don't feel like it right now).
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