I had tmoss do my Explorer intake. Who ports the heads? Is it worth it, as how close is the flow to AFR/ TW heads at what cost? My E 7's were ported, and by ET and mph, they have to flow close to stock GT 40's.
who ports GT40 HEADS?
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thumper460
Click on the link to be taken to his profile. Haven't seen him on the site in a while but the information tab in his profile should have some contact info.
Here's his website link: http://thumperoforangepark.com/
Click on the link to be taken to his profile. Haven't seen him on the site in a while but the information tab in his profile should have some contact info.
Here's his website link: http://thumperoforangepark.com/
cenok is family
15 Year Member
Thumper is one of the best around, definitely look into him. I have a set of thumper ported e7's and my car put down 270rwhp n/a on a dynojet. Not too shabby, imo, for some crappy factory heads.
IMO, I wouldn't spend any money on iron heads. Save the $500+ that you'd spend on having some one port your heads and put it toward an aftermarket aluminum head that will flow better, not to mention will be a much better starting platform for your valvetrain and will knock ~40 lbs off the nose of your car. Even a professionally ported iron GT40 head will only barely get you near the numbers of an entry level AFR or Trick Flow head.
Now I whole heartedly support the budget minded DIY stuff, so I definitely wouldn't knock you if you wanted to port them yourself. I just don't see the sense in paying several hundred dollars for someone else to do it for you.
Now I whole heartedly support the budget minded DIY stuff, so I definitely wouldn't knock you if you wanted to port them yourself. I just don't see the sense in paying several hundred dollars for someone else to do it for you.
I agree with NIK. Go back 10+ years ago when used aftermarket aluminum heads were few and far between and still very expensive and paying for porting GT40 heads was a viable option. Now a days, you can get yourself a set of used aluminum castings for less than you'd pay to recondition and port a set of any junk yard irons.
I picked up a set of GT40X aluminum heads last fall...fresh out of the machine shop, with new guides, valve seals, resurfaced and some mild porting performed already for $700 shipped to my door. You couldn't buy, recondition, and have a set of GT40's ported for that....and in the end you're still stuck with a lesser performing head (unless you get creative), that still weighs 50lbs more than any aftermarket aluminum casting.
If you're gonna port them yourself, you'll save a few hundred dollars. Keep in mind though, if they're off an Explorer, they're going to need valve springs/locks/retainers, which adds $100 to the price and will almost certainly need a valve job and new valve seals. It adds up fast man. Spend your money wisely.
I picked up a set of GT40X aluminum heads last fall...fresh out of the machine shop, with new guides, valve seals, resurfaced and some mild porting performed already for $700 shipped to my door. You couldn't buy, recondition, and have a set of GT40's ported for that....and in the end you're still stuck with a lesser performing head (unless you get creative), that still weighs 50lbs more than any aftermarket aluminum casting.
If you're gonna port them yourself, you'll save a few hundred dollars. Keep in mind though, if they're off an Explorer, they're going to need valve springs/locks/retainers, which adds $100 to the price and will almost certainly need a valve job and new valve seals. It adds up fast man. Spend your money wisely.
http://www.diyporting.com/ Do It Yourself Head porting - lots of good info and some cautions on what not to do.
This is why I bounce brainstorming ideas off you all first. If a gt40 set is good and cheap, why not ported ones? I got my answer. Now if I just knew how good the porting is in the extra set of E 7s that came with the car. The site will tell me a little by looks.
Anyway, thanks.
Anyway, thanks.
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