4.6L General DiscussionThis section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.
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Worth Installing 03 Mach1 intake manifold on 99GT?
I Searched and searched but i couldnt find anything on this, so if its an over asked question then i am sorry.. I have a 99GT 2v Windsor motor, and was wondering if Is worth swapping out my plastic PI intake for the 03 Mach1 Aluminum intake? or Any aluminum intake for that matter? i do have the stock heads with the 270ah cams, upgraded springs, 75mm tb/plenum, 80mm Maf, 24lb injectors, shorty headers, underdrive pulleys, and roller rockers. I Appreciate your input, Thank you.
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1989 Ford Mustang California Edition...5.0 Manual... GT
you dont see posts on this because it's not possible. none of the 4v intakes will work on the 2v heads. at your current level the stock intakes fine and you wont pick up enough power to justify the high costs of all the intakes. You might pick up 5-10 hp with a trickflow or bullitt intake, but those cost in around 700+.
now the bullitt has an aluminum intake that is more efficiently designed than a normal GT's, but the whole setup will cost you $1k+ depending on where you get it. not worth it IMO but many people have done it. you could net similar performance results with a bigger "upper plenum" and throttle body, and those should cost you less than $400 (got my combo new for right at $200). also note i said "similar," the bullitt intake will still have a better power curve. i'm strictly talking dyno numbers here.
__________________ 2002 Mustang GT: Sonic Blue
BBK 75mm TB, BBK Chrome LT's & O/R H-Pipe, Flowmaster Cat-Back: 233rwhp/272rwtq
JLT SRA, MGW STS, UPR 3 Hook Quadrant & Quick Click FWA, Delta Force Commando, LC-1 Wideband, 180º tstat, Pro Products Upper Plenum, Motive 4.10s, UPR Adj LCAs, MM PHB, 24# injectors, MM FLSFC
2002 Expedition XLT: Premium Sport 5.4L
1999 F-150 XLT: Ext. Cab Flareside 4.6L
Deep Wedgewood Metallic
IMCO Muffler - Dual Pipes, K&N FIPK II
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