headers

bluecoupe January 5th 2012, 6:38 pm

has anyone used cpr headers fox a foxbody mustang. i'am looking at a set of there 2 1/8 stepped to 2 1/4 with 4" outlet i wanted to know how well they fit

dfree383 January 5th 2012, 6:40 pm

Whick Heads? What Kmember?

bluecoupe January 5th 2012, 6:42 pm

qa1 scj heads and a glide

dfree383 January 5th 2012, 7:12 pm

I haven't used their headers, I've used D&D and Hookers, but talk with them about what parts they work with. There are alot of variations on Kmembers, CL location of Chassis and Steering Locations, heights Ect. There where a bunch of dimensions on the stock stuff that varied over the years too.

Its pretty much impossible to fit all the possible variables with a off the shelf big tube header and not require some "Rework" to fit nice.

bluecoupe January 5th 2012, 8:39 pm

i was wanting to know how far they hung under the car

bbf-falcon January 5th 2012, 9:01 pm

https://www.429-460.com/t12303-fox-mustang-swap-headers

I layed mine in the engine bay,but won't be able to see how they will hang until the engine is set in. That might be awhile. They are a nice well built header though. Some of the best chraftsmanship i've seen.

jbozzelle January 6th 2012, 11:06 am

I have a set of what looks to be identical to the Dynatechs on mine. 2-1/8" tube. I'm currently using an old D&D k-member. They work just fine. All of the driver's tubes are routed between the block and steering shaft. None go around the steering. I did have to remove the engine mount stands on the k-member and go the engine plate route. The tubes go right through the stands. So definitely talk to the header people and find out exactly what they used in designing those headers.

I'll be installing a PA k-member soon, but don't forsee any fitment issues.

dfree383 January 6th 2012, 11:08 am

bluecoupe wrote:i was wanting to know how far they hung under the car

How low are you going to put the motor?

PS I'm not trying to be a smart ass. But you should talk with the Mfg and get some dimensions from them that they use on the jigs to build with.

jbozzelle January 6th 2012, 2:22 pm

bluecoupe wrote:i was wanting to know how far they hung under the car

Depends on a bunch of things. I wanted my driveline straight in line with the rear pinion. In doing so I found that I had to raise the tailshaft of my trans up a bunch from the stock location to get the driveshaft in line with the pinion because of the 32/33" tires and low ride height my car has. When I did that the front of engine angled downwards (more like levelled out) and caused the header collectorss to come up towards the floor and tuck in real nice. So now the collectors don't hang low any more.

I was only able to raise the trans up because the factory floor and tunnel is all gone on my car from the firewall back. Most guys can't raise the trans with the stock tunnel/floor in the car and as a result their collectors hang fairly low.

Just all depends on how the car is built and how much effort you put into swapping in the 460 into the Fox chassis...

83-88T-Bird Guy January 8th 2012, 10:54 am

I don't have a set of CPR's longtubes, but I got a set of mid length headers made by them and I was impressed with the build quality.

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