I just bought a 68 GTO 4 speed. It has old full length headers from the day that hang too low. What is my best bet for a replacement, I don't care about performance as much as fit and ground clearance. Can I switch these out with the motor in the car? Thank You!
If you're looking for fit and ground clearance, you might consider the ram air exhaust manifolds such as these from Ames. Of course you'd have to change your head pipes to fit. But these would be a good comprimise between performance and fit/clearance.https://secure.amesperf.com/qilan/Detail_Web?part_num=N179H&order_number_e=MzMyNzY3MA%3D%3D%0A&web_access=Y
In addition to My71's suggestion Hedman also offers shorty's and I have used them in a 68 400 4 speed Bird, perfect fit.http://www.summitracing.com/search/brand/hedman-hedders/part-type/headers/header-style/shorty/make/pontiac/model/gto/year/1968
Poncho huggen gear snatchen posi piro.
Hi;For full length, the Hooker Super Comps [not the regular comps] are claimed to be the best fit, however, they will still hang low.If you have money I suggest the RA's as my 71 suggested. Very cool looking, lots of room. Just coat them with Eastwood brush on cast iron coating first.If you use headers, I would use Remflex graphite header gaskets.http://catalog.remflex.com/
I installed a set of stainless steel headers for the round port heads. Do you have D port or round. Yes you can do them on the car but need to jack the car up a couple feet. Dougs and JBA racing make headers with good ground clearance