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Does the L69 have 2 1/4 outlet exhaust manifolds?

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Old Aug 9, 2001 | 10:25 PM
  #1  
86 sports coupe's Avatar
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From: Noblesville In
Car: 86 sports coupe-83 berlinetta
Engine: 5.0 in the sports coupe-350 in the berlinetta
Transmission: 700r4 in the sports coupe-turbo-350 with a 2500 stal in the berlinetta
Does the L69 have 2 1/4 outlet exhaust manifolds?

Im interested in all aspects of 3rd gen f bodys.I didnt know wether to ask on history or exhaust board.I cant get enough of this web site or info on third generations!!

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83 berlinetta currently 350/350 3:42 gear,2500 stal,3inch exhaust,2 1/4
exhaust manifolds,comp cam 268,performer intake
L69 dual snorkle aircleaner 3160lb
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Old Aug 10, 2001 | 08:53 AM
  #2  
Changa2's Avatar
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From: Muskegon, MI
My 84 measures 2 1/8" at the flange.
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Old Aug 11, 2001 | 01:45 AM
  #3  
Kevin91Z's Avatar
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
2 1/8" is what they're supposed to be.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
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Old Aug 12, 2001 | 12:23 PM
  #4  
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From: Fla
Car: 90 IROC
Engine: 406
Transmission: GMPP 93/4L60
Axle/Gears: 9 bolt 3.27
Yeah they measure 2 1/8 I have a set of the TPI manifolds and the L69s. I have read in books/mags more than once about them being 2 1/4 Ive never seen a set that was. The TPI manifolds I have are from a 350 car. The L69 manifolds should flow the best looking at the two.

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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!
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