Header advice for Big block
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,002
Likes: 0
From: Bay City MI.
Header advice for Big block
I am looking for a good set of headers for my 454 coupe. I want them to be cerama coat, or Jet-hot coated. Have been told that they all need some major modifications to fit, are there any that will just bolt on, or is that wishfull thinking? Thanks for the help.
Safety Car
Joined: Aug 2000
Posts: 3,909
Likes: 26
From: Clymer PA
Re: Header advice for Big block (LT1-Tom)
I honestly don't think there are any "major" modifications that need to be made to the headers. I have heard that one of the primary pipes needs to be :smash: a little bit so as to not hang-up your clutch linkage (not sure if you have a 4 speed or not). I'll be able to tell you this spring whenever I drop the big block in and bolt the Hooker Header side pipes in. I've heard it's a tight fit, but they do fit. I'm sure some other big blockers will chime in.
Instructor
Joined: Mar 2001
Posts: 117
Likes: 8
From: SWFL
Re: Header advice for Big block (LT1-Tom)
I have used 2 sets on my 72. The Hedman coated set was an easy fit with dimpling needed to clear the steering box only. Clutch linkage was fine. Hedman was unequal length, 2" primaries,3" collectors.
Upgraded a few years ago to Thorley's which are not bad for mass production. Close to equal length 2.125" primaries, 3.5" collectors. Note that these take more patience to fit and will not clear an AC car firewall on the passenger side.
Stahl makes a very nice set on the custom side or you can build your own. Headers by Ed has the best web site for header tech that I have seen.
Phil
72 468 5spd
Upgraded a few years ago to Thorley's which are not bad for mass production. Close to equal length 2.125" primaries, 3.5" collectors. Note that these take more patience to fit and will not clear an AC car firewall on the passenger side.
Stahl makes a very nice set on the custom side or you can build your own. Headers by Ed has the best web site for header tech that I have seen.
Phil
72 468 5spd
Safety Car
Joined: Jan 2001
Posts: 4,660
Likes: 3
From: South Central Louisiana
St. Jude Contributor
Re: Header advice for Big block (pmazza)
I agree with pmazza, whoever put the engine in my car had to :smash: do some smashing to clear THE STEERING BOX ONLY. Let me know if you need some pics, I'll be glad to send them to you.
[Modified by 71,454,4spd, 9:46 PM 12/23/2001]
[Modified by 71,454,4spd, 9:46 PM 12/23/2001]
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Burning Brakes
Joined: Aug 2000
Posts: 1,211
Likes: 6
Re: Header advice for Big block (LT1-Tom)
Jet-Hot coatings will sell you a set of Hooker-Supercomps delivered to your door with their coating done already for $599.00. Order from them, that way you save on having to ship headers to them. They buy from supplier, do their thing and ship to you. Not a bad price actually.
Regards, Mark :flag :chevy
Regards, Mark :flag :chevy
