C1 Headers
Thread Starter
Instructor
Joined: Oct 2012
Posts: 148
Likes: 6
C1 Headers
Does anyone make C1 headers that don't require minor alterations to either the car or the header to make them fit properly? In my search, I haven't found any that are true "bolt on". I always see comments such as "modify frame flange", "grind header collector flange", etc. Heads are standard Chevy - no angle plugs.
Drifting
Joined: Feb 2006
Posts: 1,840
Likes: 29
From: Towaco NJ
They have not made Hedman headers for C1 corvettes in about 5 years. They are the same headers I run in my black car. They are they only true header that advertises that they will fit angle plug heads. What heads are you using??
I do have new, un-used set of Hedmans that are coated. Jim
I do have new, un-used set of Hedmans that are coated. Jim
Thread Starter
Instructor
Joined: Oct 2012
Posts: 148
Likes: 6
They have not made Hedman headers for C1 corvettes in about 5 years. They are the same headers I run in my black car. They are they only true header that advertises that they will fit angle plug heads. What heads are you using??
I do have new, un-used set of Hedmans that are coated. Jim
I do have new, un-used set of Hedmans that are coated. Jim
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Thread Starter
Instructor
Joined: Oct 2012
Posts: 148
Likes: 6
Yep. That's what I'm trying to avoid. The car had headers on it (unknown brand) and the upper frame rail flange on the passenger side looked like someone used a hacksaw and meat cleaver to "notch" it for header clearance. That just got repaired. I may need to stay with 2.5" exhaust manifolds to avoid the frame mods.
Drifting
Joined: Feb 2006
Posts: 1,840
Likes: 29
From: Towaco NJ
I have been putting headers on C1 vettes for 50 years, never had to cut the frame. No one has stated whether or not the cuts to the frame were for left to right clearance or clearance to hook up the remainder of the exhaust system. If the latter, that is just a lack of fabrication skills. None of the current headers will dump even with the exhaust holes in the frame. You have to off set your pipes to either go through or under the frame.
With your straight plug heads, the Hooker Comps and Super Comps will have a problem with the stock starter. If you are using a Mini starter, no problem. The thing with " 10.4" flywheel " is BS with the Mini starter.
The Hedman 68136 headers are the most versatile headers I have found, fitting evey angle plug head I have tried. All others work on some , but not on others.
Pictures of some of my headers.
With your straight plug heads, the Hooker Comps and Super Comps will have a problem with the stock starter. If you are using a Mini starter, no problem. The thing with " 10.4" flywheel " is BS with the Mini starter.
The Hedman 68136 headers are the most versatile headers I have found, fitting evey angle plug head I have tried. All others work on some , but not on others.
Pictures of some of my headers.
Instructor
Joined: Oct 2005
Posts: 143
Likes: 6
From: MD
Does anyone make C1 headers that don't require minor alterations to either the car or the header to make them fit properly? In my search, I haven't found any that are true "bolt on". I always see comments such as "modify frame flange", "grind header collector flange", etc. Heads are standard Chevy - no angle plugs.
Le Mans Master
Joined: Jan 2007
Posts: 6,005
Likes: 1,510
From: Prescott Arizona
When I bought my 61, I found that the Hooker Comps made this annoying screeching sound when the drivers side collector rubbed against the lower flange of the frame rail. A little grinder work helped to gain some clearance and still seals well. One other thing to mention, I believe the reason the Hooker headers were so close to the frame was due to their efforts to leave enough room for the oil filter but I found it was a bit tight to use a filter wrench so I've gone to the K&N types that have the hex protrusion on the bottom.
Mike T - Prescott AZ
Mike T - Prescott AZ
Advanced
Joined: Dec 2006
Posts: 58
Likes: 0
headers
They have not made Hedman headers for C1 corvettes in about 5 years. They are the same headers I run in my black car. They are they only true header that advertises that they will fit angle plug heads. What heads are you using??
I do have new, un-used set of Hedmans that are coated. Jim
I do have new, un-used set of Hedmans that are coated. Jim
I interested in your headers if you still have them.Please pm me back.
Thanks,
Larry