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HELP! 454 in a 86 gran prix

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Old May 18, 2004 | 03:53 PM
  #1  
book's Avatar
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HELP! 454 in a 86 gran prix

Having issues with putting a chevy 454 in my 86 gran prix, anyone know whats involved with the exhaust setup. Wanted to go with a 3" long tube headers but wondering if they'll fit, or is there any swap headers I can get. Any input would be helpful.
Old May 18, 2004 | 04:13 PM
  #2  
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From: Philly
Car: 85 firebird
Engine: Pos 2.8 pulled and replaced with a 350 tpi motor converted to carb.
Transmission: 700r4, vette servo,shift kit, hayden 15"x8" trans cooler.
Your not gonna get much help dude. This is a third gen site for cams and birds only. Good luck though, sounds fun!
Old May 18, 2004 | 05:20 PM
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I thought that it should be the same since they are both GM. Just was wondering if anyone has put a 454 in one.
Old May 18, 2004 | 05:27 PM
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From: Dallas, Ga
Car: 85 Firebird
Engine: 350
Transmission: th350
Axle/Gears: 3.42
Look fo r headers to fit a big block in a Monte Carlo.
Thay have the same chassis as the Gran Prix. You shouldnt have any problems finding them
Old May 18, 2004 | 08:09 PM
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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
GM, yes.

But not the "same".
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