has anyone upgraded the heads/cams or even pulled the stock heads off for any reason?
im thinking about the stage 3 heads w/ regrind cams from supersixmotorsports.com for my truck, to give me some better flow and more power( 4.0 mustang-auto-single exhaust peaked at 25hp gain with no change in tuning, and i think it was 40ftlbs tq) so if i can get those numbers or a little better after a tune ill be happy!

 

talk to NicksterSVT I know he has installed those heads and cams a few times.

 

What does something like that cost?

 

^^if you have too ask, you can't afford it

a lot...

 

never mind...i found them..

 

awsome! thats good to know someone has installed the ones im looking at.

 

Sweet.. i'd do it

 

heres the link to the heads/cams
http://www.supersixmotorsports.com/p...6HeadsCams.pdf

 

stage 3 heads $1650 *$250 refundable left/right core set
Custom regrind cams(these only work with the stg 3 heads) $575 *$125 refundable lt/rt core set
ARP alloy head studs $385 (may not be needed on N/A motor, but if your spending 2k on heads/cams might as well get better studs)

 

Seems pretty expensive for 25Hp and 40tq.

 

yeah. how much is an EE kit?

 

well since there isn't anyone else who makes parts for the 4.0 SOHC, i wouldn't complain if you really wanted to build on up...

 

I'd spend it and some time on the chassis dyno to harness the new heads full potential. I think with a good tune and headers with free flowing exhaust you may be looking at more like 40hp and 50-60 lb/ft of torque. That works for me...

 

man a superdupercharger would be way more gain per dollar. and way less work


JOSH

 

But if you had both.......

 

ZOOM ZOOM!

 

1 zoom shy of a mazda

 

my mistake...
Our Stage 2+ heads have been shown to add 25 peak horsepower and 19 ft-lbs peak torque when tested at the rear wheels on a Mustang chassis dyno on an automatic 4.0 SOHC Mustang with single exhaust with no changes in tuning! Horsepower and torque increased throughout the entire RPM range with non-peak horsepower increases of up to 50 RWHP and non-peak torque increases as high as 80 ft-lbs! 5-speed cars will show even higher gains and with further tuning, even more power will be produced!


got the numbers mixed up and the heads... as these are only stage 2-no cams..

so the numbers would be a bit higher with stg 3 and cams and a dyno tune...

 

i dont see how, without cramming in a ****load more air, these mods are actually worth it.

anyone have specs for thier cams and specs for the stock cam?

 

Well a mustang dyno is hard to improve numbers on so that is very respectable. Also, with a free flow exhaust and intake it would gain more power easily. Also the ***** thing is you may have to pull the motor to get to the rear cam chain on the passanger side.

 

ha ^^ ya i read that, and thats why i will be paying the speed shop down the road to mess with it.

i have JBA headers on the truck now, and with the other bolt on mods keeping stock bottom end, id be hoping for about 300hp which i feel is possible with heads/cams/headers/cat back/pullies/efan/bigger TB or bore out the stock one, and the next size up injectors(if needed) and a dyno tune