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#1
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3rd gen Firebird swap questions
Hi all. I’ve searched but evidently I suck at searching..
There was a guy that did a build thread on a Pontiac V8 swap into a 3rd gen on here but I can’t find it. It was really good. Seems like a High School shop class did some of the work. Can any of you guys send me a link if you know the thread? Also, is there a set of headers that can be modded to work on this swap? Thanks Murf |
#2
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Never mind I found the thread.
Still wondering if anyone has any header experience on this swap. Thanks again Murf |
#3
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I have done this swap. Real happy with it with my 428 and TKX 5 speed. Headers are a pain, I used the RA manifolds and they fit perfect, lined up well and with 2.5” mandrel bent down pipes was very nice.
Picture rotated on me…. |
#4
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Quote:
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#5
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#6
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If you want to run 4 tube headers they need to be custom and they need to swoop forwards away from the firewall and then turn back to get under the motor .
3 tube headers might be cheap enough to start with and modify them to clear and to hopefully mod with a nice big 2 , 2 1/4" or even 2.5" center tube depending on your hp and rpm needs!
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#7
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I believe that headers are the only problem;
If my memory serves me, the 1982 Trans AM was intended to be offered with the 301-T drivetrain, so swapping in second gen mounts does the trick.
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#8
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There's also the common electrical issue when going from the Chevy to the Pontiac that the battery now needs to be on the other side of the nose of the car as does the wires to the starter.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#9
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There is a great thread on this swap over on Thirdgen forum. Many people have tried to do this swap but most don’t finish the swap. It seems the little items add up to make it correct. I spent a ton of time and money doing mine but wanted it to look factory installed.
I talked to a guy who did get headers on his third gen and I recall he had to flip the tubes on number 5 & 7 and rotate them upwards. I think the passenger side cleared without too much issues |
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