Join Date: May 2003
Location: Tinton Falls, NJ
4.6 DOHC header question
Ok, so I have a mark 8 motor that I will be putting in my cougar probably this summer. I want some long tube headers for it, but they simply aren't available from the research I have done. Seems like the only thing out there is the kooks mid-length. My question is basically 2 parts.
#1) I know several 5.0L guys have done the steering shaft mod and ran mustang headers. Would this work for the 4.6DOHC too, or would I likely have other clearance issues? I don't mind having to beat in my floor pan, I just don't want the headers hitting the shock towers or something like that.
#2) If the steering shaft mod and mustang headers is not likely to work, does anyone who has kooks headers know how difficult it would be to cut off the collector, extend the pipes, and weld the collector back on? Are the pipes straight for a while before they go into the collector or is there not much room to work with?
-91 Cougar LS, coming soon, complete overhaul
with a 427" Windsor.
-90 XR7 5-speed black on black w/sunroof, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, and ported big valve heads
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
-90 SC Automatic rustbucket winter beater
-97 Tbird Sport 4.6 Nice weather daily driver
-"Your buddy Mike is INSANE!" -ClintD's dad