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01-19-2004, 06:46 PM
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Registered Member
Join Date: Aug 2002
Location: SanAntonio, Tx
Posts: 957
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the p 40's have a different plug angle, and require a special header, they also have a smaller exhaust valve, but supposedly flow better than the old school irons, which have a bigger exhaust valve, like the ones i have, were pulled from an early 97 exploder, but unless your gonna port the crap out of them, dont bother with the gt-40 iro, the power gain is minimal over an e7.
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X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear |
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