Anyone have suggestions for a good quality set of headers for a 76 400 with 6x heads thats going in a 68 bird? I like the looks of the ceramic coated ones but not sure which ones to get that will not be in the way of steering gearbox
The only problem you may encounter is if your heads do not have the end bolt holes for the exhaust. 1972 heads have the end holes missing and no room to drill and tap, some heads have the end holes missing but the boss is there so one could drill and tap the holes for headers. Most Pontiac heads will accept headers without any problems. Some headers are automatic or manual specific as well as power steering or not. You'll find some that fit the engine and year of car, no problem.
I agree 100% on long branch manifolds for a street car, or anything under 500hp. On my previous mild 455, it dyno at 400hp with RAM manifolds and 409 with full length headers. That 9hp is not worth the trouble in my book!
For my strip car, I plan to purchase the headman 1.75" headers, not coated. Once I confirm the fit and clearance, will send in to someone like Jet Hot to have them coated. Supposed to be a lot better than the OEM coatings- so I have read...
I acquired some headers for my 69 goat and after a lot of wrestling I determined that it was impossible to install them with the motor in the car due to one of the bolts being impossible to reach. I put the logs back on and never looked back. When I got my bird it had rusty leaky headers and replaced with long branch and have been happy ever since.