Join Date: Sep 2006
Location: Las Vegas, Nevada
I bought 2 1995 T-birds with 4.6 4r70w and I see the obstacle of putting headers or true duals. Kinda narrowed to the kooks longtube headers and the scp for the true duals. I know that there are adapter plates for 2v headers to mount to a 3v 4.6... But I was wondering if they could work in reverse because I have a set of 3v manifolds one the shelf from my 2008 mustang, I know they flow pretty good, most people say the are good up to 450 hp...
I remember when I first started working on birds too lol
1:We have a few options regarding headers, either send your stock ones out to be ported and coated, or upgrade to Kooks, which are the only headers that flow worth a damn that actually directly fit the chassis, mustang headers can be modified to fit (extensive modification), and finally JBA makes a set of shorties that don't flow any better (some claim WORSE) then the stock manifolds.
2: SCP is the only source for Kooks headers, however they are NOT the only source for dual exhaust, chances are there is a local shop that could fab up duals likely for less the SCP, or you could order a kit from Mandrel Bends (search is your friend).
-1996 Pearl White Thunderbird 4.6 Sport 4v with many mods:
Current Best: 13.583 @ 103.74 10/2014.
227hp/241tq measured on calibrated mustang dyno, tested at full vehicle simulation with inertia enabled, no number skewing.
-2001 White Ford F-250 Super Duty 6.8 V10, 4-door, 4x4, Limo Tint, BFG KO2's, Bilstein 7100 Remote Reservoir Race Bypass Shocks, 6" Spring lift, Kenwood Double Din, K&N Intake, FlowMaster Exhaust
Amber_Murder's Daily Driver.
-2005 White GMC Sierra 3500 6.6 Duramax, Dually, 4-door, 4x4, Limo Tint, BFG Commercial T/A's, Rancho RS9000XL Shocks, Kenwood Double Din, K&N Intake, Banks Monster Exhaust
Chris_Murder's Daily Driver.