1975 headers
Thread Starter
Racer
Joined: Oct 2010
Posts: 474
Likes: 0
From: Bishop CA
1975 headers
Can anyone help me to locate a set of headers for a 1975 L-48. Every time I get a parts # it turns out there is something that won't work. My biggest problem is a steering damper or steering assist. Where is this located exactly. I was told in the crossmember. Do certain cars this year come with it and not others? Also I find a few that won't work with Turbo 400. Has anybody installed a set on a 75 and where did you get them. I appreciate any info in advance.
Team Owner
Joined: Jun 2000
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From: Southbound
Cruise-In II Veteran
The last steering dampers were on the 68 standard steering cars. If you have power steering on your car, you will have a power steering cylinder under the car providing the power assist.
You want Corvette smallblock headers which will fit power steering. If you have air conditioning, you will probably need an AC compressor mounting bracket which the header manufacturer should be able to provide.
You want Corvette smallblock headers which will fit power steering. If you have air conditioning, you will probably need an AC compressor mounting bracket which the header manufacturer should be able to provide.
Last edited by Easy Mike; Oct 14, 2010 at 01:16 PM.
Drifting
Joined: May 2006
Posts: 1,480
Likes: 2
From: Circleville Ohio
Vader Vette
Can anyone help me to locate a set of headers for a 1975 L-48. Every time I get a parts # it turns out there is something that won't work. My biggest problem is a steering damper or steering assist. Where is this located exactly. I was told in the crossmember. Do certain cars this year come with it and not others? Also I find a few that won't work with Turbo 400. Has anybody installed a set on a 75 and where did you get them. I appreciate any info in advance.
For Horse power they gotta new thing just came out call a Crate Motor.
The L-48 is down tuned to make that little horsepower if you can believe that. I bet you could balance blue print pistons heads and headers and get 230 or so HP. But unless you have A machine shop and plenty of time and money . I would just get A crate motor from Jegs or Summit.
I think my 4 Cyl 944 N/A Will out run my 75 after 65
Thread Starter
Racer
Joined: Oct 2010
Posts: 474
Likes: 0
From: Bishop CA
Did you say L-48 I have the same car 75 L-48 save your money the exhaust manifolds on the 75 will be as effective as headers Kinda.If your going headers: Question for sound or Horse power??for noise just switch to some magna flows or for really loud what I have Flowmasters.
For Horse power they gotta new thing just came out call a Crate Motor.
The L-48 is down tuned to make that little horsepower if you can believe that. I bet you could balance blue print pistons heads and headers and get 230 or so HP. But unless you have A machine shop and plenty of time and money . I would just get A crate motor from Jegs or Summit.
I think my 4 Cyl 944 N/A Will out run my 75 after 65
For Horse power they gotta new thing just came out call a Crate Motor.
The L-48 is down tuned to make that little horsepower if you can believe that. I bet you could balance blue print pistons heads and headers and get 230 or so HP. But unless you have A machine shop and plenty of time and money . I would just get A crate motor from Jegs or Summit.
I think my 4 Cyl 944 N/A Will out run my 75 after 65
Team Owner
Joined: May 2001
Posts: 87,294
Likes: 1,579
From: Western NY
I'm not totally "up to speed" on the C-3s anymore, especially when it comes to header clearance for the power steering ram. However, I recently saw that a supplier called "McJacks" makes "shorty headers" for early big and small block 'Vettes. They might be what you're looking for.
Or, you could go "stealth", and have your manifolds Extrude Honed"...
Or, you could go "stealth", and have your manifolds Extrude Honed"...
Thread Starter
Racer
Joined: Oct 2010
Posts: 474
Likes: 0
From: Bishop CA
The last steering dampers were on the 68 standard steering cars. If you have power steering on your car, you will have a power steering cylinder under the car providing the power assist.
You want Corvette smallblock headers which will fit power steering. If you have air conditioning, you will probably need an AC compressor mounting bracket which the header manufacturer should be able to provide.
You want Corvette smallblock headers which will fit power steering. If you have air conditioning, you will probably need an AC compressor mounting bracket which the header manufacturer should be able to provide.
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
http://www.summitracing.com/parts/HOK-2456HKR/
I have installed these on a few Corvettes with no trouble fitting. power steering, 4 speed or automatic have all fit no problem.
I have installed these on a few Corvettes with no trouble fitting. power steering, 4 speed or automatic have all fit no problem.
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Team Owner
Joined: May 2001
Posts: 87,294
Likes: 1,579
From: Western NY
Racer
Joined: Apr 2003
Posts: 486
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From: Point Pleasant NJ
http://www.summitracing.com/parts/HOK-2456HKR/
I have installed these on a few Corvettes with no trouble fitting. power steering, 4 speed or automatic have all fit no problem.
I have installed these on a few Corvettes with no trouble fitting. power steering, 4 speed or automatic have all fit no problem.
I can't recall last time I had mine out but I believe one side is hell of a lot easier coming up from underneath while the other drops in from the top pretty easily. Of course from down low you need to have that puppy up quite a bit.
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
Can anyone help me to locate a set of headers for a 1975 L-48. Every time I get a parts # it turns out there is something that won't work. My biggest problem is a steering damper or steering assist. Where is this located exactly. I was told in the crossmember. Do certain cars this year come with it and not others? Also I find a few that won't work with Turbo 400. Has anybody installed a set on a 75 and where did you get them. I appreciate any info in advance.
Thread Starter
Racer
Joined: Oct 2010
Posts: 474
Likes: 0
From: Bishop CA
I'm not totally "up to speed" on the C-3s anymore, especially when it comes to header clearance for the power steering ram. However, I recently saw that a supplier called "McJacks" makes "shorty headers" for early big and small block 'Vettes. They might be what you're looking for.
Or, you could go "stealth", and have your manifolds Extrude Honed"...
Or, you could go "stealth", and have your manifolds Extrude Honed"...
Thread Starter
Racer
Joined: Oct 2010
Posts: 474
Likes: 0
From: Bishop CA
I have Flo Tech ceramic headers on my 75 w/5 speed, pwr steering and A/C. No trouble fitting anything, they bolt right up from the bottom, remove the starter, A/C compressor and "Z" bar. I never installed them on the L-48, motor is a ZZ4 but same. I made up some spacers for the A/C bracket from 1/4 gal. pipe.
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
Looks like about 14" from the front edge of the tubes to the flange where it meets the exaust pipe.
