GT-40 cast iron heads on 347 HELP!!
#1
GT-40 cast iron heads on 347 HELP!!
I have a set of cast gt 40 heads ported & polished with stockvalves and springs. I dont know what they flow. I was thinking about putting them on a 331 or 347 shortbk with BBK SSI intake Anderson Ford
B-31 cam. forced induction later. What do you guys think.
B-31 cam. forced induction later. What do you guys think.
#2
RE: GT-40 cast iron heads on 347 HELP!!
ORIGINAL: 86gt_wit_Ts
I have a set of cast gt 40 heads ported & polished with stockvalves and springs. I dont know what they flow. I was thinking about putting them on a 331 or 347 shortbk with BBK SSI intake Anderson Ford
B-31 cam. forced induction later. What do you guys think.
I have a set of cast gt 40 heads ported & polished with stockvalves and springs. I dont know what they flow. I was thinking about putting them on a 331 or 347 shortbk with BBK SSI intake Anderson Ford
B-31 cam. forced induction later. What do you guys think.
are you a budget build? if your gonna be skimpy on you build get a gt-40 intake or something that looks good like the typhoon intake
**edit** your stroker kit will not be able to operate at its potential if you use very limited products, gotta have the flow to go!
#4
RE: GT-40 cast iron heads on 347 HELP!!
don't skimp out on the heads!!!!! trust me!!! i had completely reworded e7's with bigger valves. it suffocates the motor.
at least some trickflows, afr, canfields, eddy's something.
get a holley systamax or trickflow r and a custom cam. with boost friendly compression it will still make some power
at least some trickflows, afr, canfields, eddy's something.
get a holley systamax or trickflow r and a custom cam. with boost friendly compression it will still make some power
#6
RE: GT-40 cast iron heads on 347 HELP!!
ORIGINAL: 86gt_wit_Ts
What about the heads? What out performs the SSi?
What about the heads? What out performs the SSi?
custom grind i agree on.
heads, dont go cheap
#8
RE: GT-40 cast iron heads on 347 HELP!!
ORIGINAL: 86gt_wit_Ts
I want to make 400 to the wheels give or take on motor alone 9.5comp. give me an example part list to go on .
I want to make 400 to the wheels give or take on motor alone 9.5comp. give me an example part list to go on .
everyone will have an opinion, most of them all will work to get you at 400HP
#10
RE: GT-40 cast iron heads on 347 HELP!!
is this a daily driver ? thrashing at the track every weekend ? or a combo of both ?
asking for 400 hp, i assume you want to go mid to hi 11's since thats what 400 true hp will get you
you don't need a stroker for 400 hp, not at all. here was my buddies setup and he went 11.60 or 11.80 (he swapped out to a c4 from his t5 and i don't remember what time went with what tranny)
anyways....bone stock 302shortblock, '92 gt almost full weight(removed sway bars and rear bumber inner)
gt40 heads, ported exhaust, slight ported intakes, a little deck to get them to 10:1 compression, some kind of upgraded valve springs, but nothing major
stock cam , stock crank
box stock gt40 intake (real one...nothing looks better)
4.10 gears
125 dry NOS 5115
et drags 26X10.5
65 tb
80mm maf pro-flo
24 lber's
255 fp
launched at 5k on the spray, yankedan ez foot, et'd at 11.80 and 11.60 on each trans
totalinvestment ? probbaly $2900 tops
those hard launches did break 2 axles so he went 31 spline mosers, then he broke the t5 thats when he went c4 and never broke anything again
if you want 400 on all motor, then stroke it, those heads will work though, i like them alot
stroker + blower or 100 shot = 500 hp and 10's all day long, i have 2 buddies like that, a 327 crate motor and a 347 kit from anderson i think
asking for 400 hp, i assume you want to go mid to hi 11's since thats what 400 true hp will get you
you don't need a stroker for 400 hp, not at all. here was my buddies setup and he went 11.60 or 11.80 (he swapped out to a c4 from his t5 and i don't remember what time went with what tranny)
anyways....bone stock 302shortblock, '92 gt almost full weight(removed sway bars and rear bumber inner)
gt40 heads, ported exhaust, slight ported intakes, a little deck to get them to 10:1 compression, some kind of upgraded valve springs, but nothing major
stock cam , stock crank
box stock gt40 intake (real one...nothing looks better)
4.10 gears
125 dry NOS 5115
et drags 26X10.5
65 tb
80mm maf pro-flo
24 lber's
255 fp
launched at 5k on the spray, yankedan ez foot, et'd at 11.80 and 11.60 on each trans
totalinvestment ? probbaly $2900 tops
those hard launches did break 2 axles so he went 31 spline mosers, then he broke the t5 thats when he went c4 and never broke anything again
if you want 400 on all motor, then stroke it, those heads will work though, i like them alot
stroker + blower or 100 shot = 500 hp and 10's all day long, i have 2 buddies like that, a 327 crate motor and a 347 kit from anderson i think