Same Heads?
03-10-2008, 08:59 PM
#2
3rd Gear Member
Join Date: Jul 2007
Location: Lake of the Ozarks
Posts: 507
RE: Same Heads?
No, if it is a GT then the 99 has the PI heads which flow way better than the 97 with the non-PI heads.
If it is a Cobra than the 97 has the intake runner control, it is basicly a set of vacuum operated throttle plates that that shut off 1 of the intake ports on each cylinder at low throttle to produce more low end torque. The 99's didn't have those
If it is a Cobra than the 97 has the intake runner control, it is basicly a set of vacuum operated throttle plates that that shut off 1 of the intake ports on each cylinder at low throttle to produce more low end torque. The 99's didn't have those
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