RPM

95blackbeauty · February 26th, 2008, 10:23 AM

This may be a dumb question but i figured I would ask the pros...Im saving up to put a set of gt40X aluminums on the stang. I was told that once i put a set of heads on that it extends my rpm range? Like i would shift later than I normally would have stock. Is there any truth to this?

95blackbeauty · February 26th, 2008, 11:32 AM

And if i get assembled heads will they be direct bolt on?

Bullitt95 · February 26th, 2008, 01:43 PM

A pair of high-flowing heads will yield substantial torque gains at higher rpm, effectively extending the powerband because of better high rpm breathing.

cobramanphil · February 26th, 2008, 03:39 PM

You can rev a stock motor as high as a modified one with heads/intake/cam..you just will not get the same results

. What the better flowing heads will get you is more overall power, but at a slightly higher rpm. Torque will be extended as well and that is why you will most like have to change your shift strategy (especially in drag racing). The trick is getting as much power as you want within the rpm capabilities of your motor (or at least right before you experience valve float

(different springs may help you to be more stable in this area though).

February 26th, 2008, 10:23 AM	#1
95blackbeauty Enthusiast 95 5.0 too slow Join Date: Mar 2007 Location: Athens, TX Posts: 804	RPM This may be a dumb question but i figured I would ask the pros...Im saving up to put a set of gt40X aluminums on the stang. I was told that once i put a set of heads on that it extends my rpm range? Like i would shift later than I normally would have stock. Is there any truth to this? __________________ 95 gt H.O. Udp's, Pypes O/r X, Slp LMI's,CAI, 3.73 gears, C&L 76mm MAF, ,short throw, Back Seat Delete NOW SELLING BACK SEAT DELETE KITS (94-98)!!! pm me if interested

February 26th, 2008, 11:32 AM	#2
95blackbeauty Enthusiast 95 5.0 too slow Join Date: Mar 2007 Location: Athens, TX Posts: 804	And if i get assembled heads will they be direct bolt on? __________________ 95 gt H.O. Udp's, Pypes O/r X, Slp LMI's,CAI, 3.73 gears, C&L 76mm MAF, ,short throw, Back Seat Delete NOW SELLING BACK SEAT DELETE KITS (94-98)!!! pm me if interested

February 26th, 2008, 01:43 PM	#3
Bullitt95 Regular 1995 Mustang GT AODE 13.97@100.9 Join Date: Apr 2007 Location: Al Ain, UAE Posts: 351	A pair of high-flowing heads will yield substantial torque gains at higher rpm, effectively extending the powerband because of better high rpm breathing. __________________ Mod List

February 26th, 2008, 03:39 PM	#4
cobramanphil Newbie 95 Cobra 11.10 Join Date: Jan 2008 Location: California Posts: 23	You can rev a stock motor as high as a modified one with heads/intake/cam..you just will not get the same results. What the better flowing heads will get you is more overall power, but at a slightly higher rpm. Torque will be extended as well and that is why you will most like have to change your shift strategy (especially in drag racing). The trick is getting as much power as you want within the rpm capabilities of your motor (or at least right before you experience valve float (different springs may help you to be more stable in this area though). __________________ 95 Cobra, vortech, 12psi, big fuel, dart 8.2 decked 363, custom cam, HSM II intake, full MM front and rear..plenty of fun for a street car on street tires and too much spent on parts

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