ported stock heads

fakesaleen · March 6th, 2006, 05:23 PM

how much can I port the stock heads on my 88 and what kind of hp increase can i expect......i dont have any money for new heads so i have to do it my self.

mdvaldosta · March 6th, 2006, 05:46 PM

15 hp or so, maybe 25 with bigger valves. Will help any cam or intake mods produce better though. Blend the bowls to the ports, remove the smog bumps from the exhaust, gasket match, and smooth out the casting flaws. No need to try and make the ports any bigger with the stock valves. If your gonna go to bigger valves you can get alittle more aggresive removing material. Your not gonna outflow an aftermarket set though, so keep that in mind.

173speed · March 6th, 2006, 08:52 PM

these could help u i dit it a some time back and i felt the difference i use a felpro gasket to port mach the heads to the intake and headers but be real careful and listen to make sure that u dont cut into a colant passage it will make a high pitch sound as u get close to them

Head Porting Info

99mustang232 · March 6th, 2006, 10:33 PM

diy head porting guide

fakesaleen · March 7th, 2006, 07:30 AM

sounds like alot of work for such a little gain. what year explorer came with the steel gt-40 heads not the gt-40p

Sidewayz6.0 · March 7th, 2006, 01:13 PM

I know for sure that at least the '97 Explorer had the GT40's. I'm not positive on the others.

fakesaleen · March 7th, 2006, 01:52 PM

gt40 or gt40p and how do you tell?

vfast · March 7th, 2006, 03:56 PM

are we all just going to have to come up there and do a thrash on the car for some hp's?.....I'll be on a raod trip next weekend to vist someone anywayz

Sidewayz6.0 · March 22nd, 2006, 05:08 PM

Originally Posted by fakesaleen

gt40 or gt40p and how do you tell?

On the front of GT40 heads they have 3 little lines in the casting. It's hard to explain, but if you were looking at them, you'd see what I was talking about. GT40p heads have 4 lines on them.

Generally, you need a special set of headers to fit the GT40p heads. If you're just looking for a decent flowing "stock" head, the p's are actually a little better than the regular GT40's. HOWEVER, if you're going to have any work done on them...And you probably should if you're going to buy a set of used ones. They'll generally need a valve job, or at the very least be cleaned up. And then you'll need a valve job anyway. Then your best bet is to go with the non "P" heads.

March 6th, 2006, 05:23 PM	#1
fakesaleen Enthusiast 1988 lx t-top Join Date: Feb 2006 Location: Port Huron, MI. Posts: 530 iTrader: 0 reviews	ported stock heads how much can I port the stock heads on my 88 and what kind of hp increase can i expect......i dont have any money for new heads so i have to do it my self. __________________

March 6th, 2006, 08:52 PM	#3
173speed Enthusiast Join Date: Sep 2005 Location: NEW JERSEY Posts: 505 iTrader: 0 reviews	these could help u i dit it a some time back and i felt the difference i use a felpro gasket to port mach the heads to the intake and headers but be real careful and listen to make sure that u dont cut into a colant passage it will make a high pitch sound as u get close to them Head Porting Info __________________ SEEYAAAAAAAAAAAAAAAAAAAAA MOTHER @#$%

March 6th, 2006, 10:33 PM	#4
99mustang232 MM Fanatic 1999 Ford Mustang V6 Join Date: Sep 2005 Location: newport news, va Posts: 3,745 iTrader: 0 reviews	diy head porting guide __________________ ...even fire and single cammin 1986 Ford F-150 5.0L 2WD 1994 Toyota Pickup 2.4L 4WD 1999 Ford Mustang 3.8L V6 2002 Jeep Grand Cherokee 4.0L 2WD 2008 GMC Sierra Denali 6.2L AWD

March 7th, 2006, 07:30 AM	#5
fakesaleen Enthusiast 1988 lx t-top Join Date: Feb 2006 Location: Port Huron, MI. Posts: 530 iTrader: 0 reviews	sounds like alot of work for such a little gain. what year explorer came with the steel gt-40 heads not the gt-40p __________________

March 7th, 2006, 01:52 PM	#7
fakesaleen Enthusiast 1988 lx t-top Join Date: Feb 2006 Location: Port Huron, MI. Posts: 530 iTrader: 0 reviews	gt40 or gt40p and how do you tell? __________________

March 6th, 2006, 05:46 PM	#2
mdvaldosta MM Fanatic 2002 Mustang GT 11.47@120.58 Join Date: Aug 2005 Location: Valdosta, GA Posts: 3,940 iTrader: 0 reviews	15 hp or so, maybe 25 with bigger valves. Will help any cam or intake mods produce better though. Blend the bowls to the ports, remove the smog bumps from the exhaust, gasket match, and smooth out the casting flaws. No need to try and make the ports any bigger with the stock valves. If your gonna go to bigger valves you can get alittle more aggresive removing material. Your not gonna outflow an aftermarket set though, so keep that in mind.

March 7th, 2006, 01:13 PM	#6
Sidewayz6.0 Newbie Join Date: Sep 2005 Posts: 28 iTrader: 0 reviews	I know for sure that at least the '97 Explorer had the GT40's. I'm not positive on the others.

March 7th, 2006, 03:56 PM	#8
vfast Banned Join Date: Aug 2005 Location: shimmy shack takeout Posts: 1,084 iTrader: 0 reviews	are we all just going to have to come up there and do a thrash on the car for some hp's?.....I'll be on a raod trip next weekend to vist someone anywayz

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