All of
these vehicles were equipped with NON PI engines. This was Fords first
attempt at the SOHC motor and the results did not produce enough HP
to satisfy the public, that is why Ford engineered the PI heads &
manifold to replace the NON PI SOHC in 1999. This change increased
the GT engine by over 60 rwhp.
| Pre 99 heads had small ports
& valves and large round 52cc chambers which did not “burn”
well. Camshafts in these heads were only .460’’ lift and also short
spring heights, you cannot install high lift cams in these heads.
No improved intake manifolds exist for these heads, considering
all these facts your money is best spent on our PI head swap kit. |
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STAGE ONE KIT INCLUDES . . . New PI heads with high lift .510’’x
.530’’ cams, PI intake manifold w/aluminum crossover, water transfer
tube, cam bolts, intake and exhaust
gaskets, head bolts and MLS head gaskets.
*This will produce approximately
a 65 RWHP increase with a 5 speed transmission* |
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STAGE TWO KIT INCLUDES . . . Everything you see in the first kit
plus, competition CNC porting, five angle performance valve job,
1mm larger SS forged valves, Comp Cams HI-REV valve springs, CBN
surfacing, and professionally assembled.
*This will produce approximately a 105 RWHP increase with a 5
speed transmission* |
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Call for details on this
kit . . . |
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