anyone change heads/cams in 4.0sohc
#1
anyone change heads/cams in 4.0sohc
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!
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!
#9
Originally Posted by Lord Of War
What does something like that cost?
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)
#12
#13
Originally Posted by Lord Of War
Seems pretty expensive for 25Hp and 40tq.
#18
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...
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...
#20
#21
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
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
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