VertStangGT86

What do you guys think of these, they're a lot cheaper then most other heads, want to know if they're worth it if you're on a budget.

white93 GT

i dont know much but i know someone that got them and they warped within a year but these were the aluminum ones

VertStangGT86

I've seen the cast iron ones. Plus even if they were aluminium you'd have to be goin real hard or not have put them on right to warp them that quick.

WesDe

VertStang Iam acxtually planning to buy a used set from a friend of mine. He had them on a 93 Gt and the car ran very good. He has a blower and they seemed to hold pretty good. Guys at the track seem to say good things about them as well.

VertStangGT86

Hmmm, might have to look at those as something to get. Anyone got any numbers for what they'll do on a fairly stock engine?

D1g1tal V3n0m

Here is the flow numbers......



http://forums.stangnet.com/showthread.php?t=334773

There is the link for more info.

roundman

Muscle Mustangs and Fast Fords got about the same flow numbers when they tested them last year, but they also put them on the dyno on a 306 ci engine using a Comp Cams Extreme Energy XE264HR cam with .512 lift on both intake and exhaust and 218/218 duration with a 114 degree lobe separation. they compared 8 sets of heads to the stock heads and the GT-40P had a peak HP of 336 and peak torque of 359 while the stock heads peaked at 306 HP and 342 torque. The GT-40P heads come out dead last in their comparison with the other heads which included, in peak hp order, the Windsor Jr @ 351., the GT-40 @ 353, the Holley 17 @ 377, Canfield @ 371, Edelbrock Performer @ 384, Brodix @ 375, and AFR 165 @ 396. The entire test article is in the September 2003 edition of MM&FF if you want to see it. I would advise you to read it before you purchase your heads.

D1g1tal V3n0m

One other thing I forgot to mention......These heads to take a special set of headers. For stock and the money they're not a bad set of heads but if you're looking for something to give you more potential later on then get some AFR 165's IMO. The GT-40Ps are for those very mild set ups trying to save money if you ask me.

VertStangGT86

Yea, based on those two sets of numbers I'm probably better off saving my money for some afr's. That's a big difference in the numbers roundman posted. Thanks guys.

88stang5.0

i have a set and i bought mine off of ebay for 150 off a 98 explorer and they where bare. so with springa about 350 for a almost new pair of heads not bad i am happy with them.