Xtreame RPM Heads?
06-28-2008, 12:27 AM
#2
Direct replacement for 1997 and later GEN III and GEN IV engines, including 4.8L, 5.3L, 5.7L and 6.0L V8s
Tested on a Z06 Corvette LS1 engine, these heads made 488 hp @ 6500 rpm and 432 ft./lbs. of torque @ 5000 rpm with just a head and cam change— no re-programming!
5/8" thick deck can be machined for additional compression if desired
214cc intake ports flow 286 cfm @ .600" lift
80cc exhaust ports flow 215 cfm @ .650" lift w/o pipe
Stainless steel 2.02" intake and 1.57" exhaust valves
Performance gains comparable to competitors’ fully CNC’d heads, giving you performance at an affordable price!
These were tested on a z06 which has a better flowing exhaust so although there say no mods needed, you would benefit by improving air flow restrictions, just as you would any engine. Intake, LT's, catback but they are not needed. They are suporting mods not required mods.
06-28-2008, 12:48 AM
#4
Thats hard to say without having results to go by. My guess is no...LOL,
Tested on a Z06 Corvette LS1 engine That's going to be flywheel I believe.
But this is without tuning as well.
For the cost of them I would guide you in a different direction if you cam to me looking for them.
First we'd look at your budget and goals amd get the two aligned.
Tested on a Z06 Corvette LS1 engine That's going to be flywheel I believe.
But this is without tuning as well.
For the cost of them I would guide you in a different direction if you cam to me looking for them.
First we'd look at your budget and goals amd get the two aligned.