Edelbrock 86-90 headers, fit on my '85?
Thread Starter
Supreme Member
Joined: Feb 2000
Posts: 1,170
Likes: 0
From: Seattle, Washington
Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
Edelbrock 86-90 headers, fit on my '85?
I EMAILED THIS MESSAGE TO EDELBROCK:
My friend has a set of Tubular 50 State legal headers that he had running on his '89 IROC-Z 5.7L..... he wants to sell them to me to put on my '85 IROC-Z 5.0L
Will they fit? The only difference between the 85 listed and the 86-90 is:
IROC & Formula 85 5.0/5.7L T.P.I. , 4-bolt cat.
#6873
IROC, Z-28, Formula 86-90 5.0/5.7L T.P.I. , 3" inlet slip-on single cat.
#6872*
My question is will it fit?
Would really appriciate the info! Thanks
-Paul
MY REPLY:
The only difference in the two as far as the headers is the right hand side is different.
So I am not sure how it will fit on your year model as we have not done the test fitting.
Anyone know for sure? I don't wanna be half manifold, half header....
My friend has a set of Tubular 50 State legal headers that he had running on his '89 IROC-Z 5.7L..... he wants to sell them to me to put on my '85 IROC-Z 5.0L
Will they fit? The only difference between the 85 listed and the 86-90 is:
IROC & Formula 85 5.0/5.7L T.P.I. , 4-bolt cat.
#6873
IROC, Z-28, Formula 86-90 5.0/5.7L T.P.I. , 3" inlet slip-on single cat.
#6872*
My question is will it fit?
Would really appriciate the info! Thanks
-Paul
MY REPLY:
The only difference in the two as far as the headers is the right hand side is different.
So I am not sure how it will fit on your year model as we have not done the test fitting.
Anyone know for sure? I don't wanna be half manifold, half header....
Supreme Member
iTrader: (1)
Joined: Mar 2001
Posts: 2,181
Likes: 1
From: Cherry Hill, NJ
Car: 92 Trans Am 'Vert
Engine: 305 TPI
Transmission: 5 Speed
Yeah, you should be just fine. The y-pipe is 3" though, so make sure you have a 3" cat before you go to put them on.
Thread Starter
Supreme Member
Joined: Feb 2000
Posts: 1,170
Likes: 0
From: Seattle, Washington
Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
I have a 3" Cat, I know the the headers came with a y-pipe new, but I'm getting them used, so I am under the impression they won't bolt to my existing y-pipe.
Supreme Member
Joined: Mar 2001
Posts: 2,047
Likes: 0
From: The State of Hockey
Car: 1987 Trans Am GTA
Engine: Miniram'd 383, 24X LS1 PCM
Transmission: TH700R4, 4200 stall
Axle/Gears: 9", 4.33:1
If he gives you just the headers, you will need to get a Y-pipe. The factory Y-pipe will only work for manifolds. And you will need to figure something out with the cat, as stated above, as the cat has a four bolt flange and the Y-pipe for that kit is a slip fit style Y-pipe. You might be able to use some of the stock Y-pipe to weld up some kind of an adapter for the header Y-pipe so the stock four bolt flange cat will work. Otherwise you will need to get a slip fit cat with a four bolt flange for the mounting of the intermediate pipe to use that header kit's Y-pipe and retain the stock mounting for the intermediate pipe (I hope that is understandable to ya)....
There is a possibility that you could get just the headers off you friend and order the correct Y-pipe for your style cat and it will all work out..... But that is only if edelbrock makes one that will work out like that....
Kind of a hassle, but you might be able to make this all work out for a fairly low price....
Hope that helps,
Matt
There is a possibility that you could get just the headers off you friend and order the correct Y-pipe for your style cat and it will all work out..... But that is only if edelbrock makes one that will work out like that....
Kind of a hassle, but you might be able to make this all work out for a fairly low price....
Hope that helps,
Matt
Thread
Thread Starter
Forum
Replies
Last Post
Dyno Don
Engine/Drivetrain/Suspension Parts for Sale
17
Nov 2, 2015 11:43 PM
