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Re: Choosing the right 289 or 302 Heads?
Be wary of GT-40p heads off of Explorer 5.0 engines, they have a modified spark plug angle and can cause header fitment problems.
Standard Cast-Iron GT-40's off a 93-95 Cobra would work well, flow a little better than a K-code 289 Hi-Po head does. Should bolt right on, you will want flat top pistons to keep your compression at or a little above 9:1.
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1994 SVT Cobra. 306, Ported GT-40X's, Crane 2031, NX Wet Kit (100 shot for now),TKO 500, TwEECer R/T, and all the bolt-ons.....
http://www.cardomain.com/id/mccobra94
1995 F-150 SC/4X4 351W/E4OD, K&N, Custom Exhaust w/Flowmaster.
Freedom Isn't Free.
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