gt40 heads.. what are the gains?
#2
RE: gt40 heads.. what are the gains?
yeah i would like to know also i found me a set that have about 2000 miles on them and was wondering, i am going to get them anyways because i know anything is better than stock but what can i expect....some mods i have.....cobra upper and lower intake, hypertech chip, ram air kit with k&n filter, b303 cam, bbk longtubes with bbk o/r x-pipe, and underdrive pulleys........just trying to figure out about how much horsepower i might gain with these
#3
RE: gt40 heads.. what are the gains?
actually pretty good , you just need to do a little work.
my buddy went 11.80 on box stock gt40 intake, gt40 iron heads w/ very mild port work on exhaust, slight decking, 4.10's and 125 shot nitrous
the heads off a '93 cobra , f3zz casting are what you want.
my buddy went 11.80 on box stock gt40 intake, gt40 iron heads w/ very mild port work on exhaust, slight decking, 4.10's and 125 shot nitrous
the heads off a '93 cobra , f3zz casting are what you want.
#4
RE: gt40 heads.. what are the gains?
I hate giving away my little secrets, but look on car-part.com. It's a listing of nearly all online junkyards with some pretty sweet deals if you have an interchange manual and dig in it.
#5
RE: gt40 heads.. what are the gains?
96-97 explorers with a castin # starting with f6 or f7 and gt40p's on 98-01explorers have a # f8 and also gt will be cast near the headbolts(near exhaust) for gt40s and gtpwil be cast in the same place for the p's
#6
RE: gt40 heads.. what are the gains?
imo gt40p head is the way to go, a buddy of mine got a set off of a 98 explorer, put them on his 92 5.0 convertible with an auto trans. the engine has a mild cam and bbk shorty headers, car made 345 at the wheels and ran 9.4 in the 1/8
Thread
Thread Starter
Forum
Replies
Last Post