I am looking for gt40p head porting pictures

footbrake · October 25th, 2009, 08:26 PM

Ok, I can't afford good heads for a long time so I am going to fix up these gt40p's I have and replace ye old e7's. I am hoping that with the procharger that it has now the car will like the gt40p's

I was hoping to get these to flow in the 220 range with some home porting before I install them but other than diy,, I haven't found any good pictures of where and how to port these and I have found no flow numbers after they port them.

anyone have anything to help?

93hatch · October 25th, 2009, 10:10 PM

have you tried porting them yet? theyre cast, youll prob spend more money in bits than itll be worth.

JBIGBOOTSY · October 26th, 2009, 12:35 AM

Here are a set i did.

JBIGBOOTSY · October 26th, 2009, 12:36 AM

superbean · October 26th, 2009, 01:04 AM

Be careful porting a p head.. they are sensative.. most flow can be had in bowl blending (see above)

JBIGBOOTSY · October 26th, 2009, 01:08 AM

Originally Posted by superbean

Be careful porting a p head.. they are sensative.. most flow can be had in bowl blending (see above)

+1

There are water jackets that are real close to the egr humps, so dont attempt to remove them.

M L Struck · October 26th, 2009, 10:35 AM

is a p cast that much different then a e7 head? b/c on e7's taking out the egr bump and gasket matching is a must and is very simple.

and it will only take one carbide bur and some cartrige rolls

JBIGBOOTSY · October 26th, 2009, 03:09 PM

Originally Posted by M L Struck

is a p cast that much different then a e7 head? b/c on e7's taking out the egr bump and gasket matching is a must and is very simple.

and it will only take one carbide bur and some cartrige rolls

THe water jackets are closer to the port walls in a few spots, especially in the exhaust.

I have found that the Rotozip tile bit is a godsend, it never gets dull, but leaves an extremely rough finish.

ddarkslayer · October 27th, 2009, 01:43 PM

Originally Posted by JBIGBOOTSY

OMG thats a beautiful porting job

gotn20 · October 27th, 2009, 04:03 PM

Originally Posted by ddarkslayer

OMG thats a beautiful porting job

shit yeah. Howd those work out for you?

flattusmaximus78 · October 27th, 2009, 04:25 PM

I'm pretty sure he ported them to sell.

JBIGBOOTSY · October 27th, 2009, 10:21 PM

It's hard to say. I wAnted to get them flowed, but the guy I sold them to wanted them in a hurry. The car they went on ran 12.30's with a performer intake and a mystery carb. So it's hard to tell. After I was done I had a standard valve job and shaved .030" off them.

fastgtfairlane · October 28th, 2009, 04:46 PM

go to diyPorting.com

October 25th, 2009, 08:26 PM	#1
footbrake Newbie Join Date: Aug 2009 Posts: 39 iTrader: 0 reviews	I am looking for gt40p head porting pictures Ok, I can't afford good heads for a long time so I am going to fix up these gt40p's I have and replace ye old e7's. I am hoping that with the procharger that it has now the car will like the gt40p's I was hoping to get these to flow in the 220 range with some home porting before I install them but other than diy,, I haven't found any good pictures of where and how to port these and I have found no flow numbers after they port them. anyone have anything to help?

October 25th, 2009, 10:10 PM	#2
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,665 iTrader: 0 reviews	have you tried porting them yet? theyre cast, youll prob spend more money in bits than itll be worth. __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

October 26th, 2009, 12:35 AM	#3
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,392 iTrader: 0 reviews	Here are a set i did. __________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

October 26th, 2009, 12:36 AM	#4
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,392 iTrader: 0 reviews	__________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

October 26th, 2009, 01:04 AM	#5
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	Be careful porting a p head.. they are sensative.. most flow can be had in bowl blending (see above) __________________ weeee foooord!

October 26th, 2009, 10:35 AM	#7
M L Struck Hardcore Enthusiast 85 GT/86 SVO/2010 GT500 Join Date: Oct 2008 Location: Rossville IN Posts: 1,183 iTrader: 0 reviews	is a p cast that much different then a e7 head? b/c on e7's taking out the egr bump and gasket matching is a must and is very simple. and it will only take one carbide bur and some cartrige rolls __________________ "Having a 9 second neon is like coming out of the closet, everyone is shocked at first, but in the end you're still gay." 5.4 Shelby Crew member #1

October 27th, 2009, 04:25 PM	#11
flattusmaximus78 I Post Entirely Way Too Much 1993 5.ohhhh 12.97 @140mph Join Date: Apr 2006 Location: Gatorland Posts: 6,077 iTrader: 3 reviews	I'm pretty sure he ported them to sell. __________________ 02 Pewter z28, hoosiers/lid/exhaust/spray...125mph 1993 gt Sold, already missed --Moates Quarter horse $225-- --Cobra intake $150-- --tremec 3550 bell and shifter $1100--

October 27th, 2009, 10:21 PM	#12
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,392 iTrader: 0 reviews	It's hard to say. I wAnted to get them flowed, but the guy I sold them to wanted them in a hurry. The car they went on ran 12.30's with a performer intake and a mystery carb. So it's hard to tell. After I was done I had a standard valve job and shaved .030" off them. __________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

October 28th, 2009, 04:46 PM	#13
fastgtfairlane Regular 94 mustang gt Join Date: Jan 2008 Location: charlotte, nc Posts: 111 iTrader: 0 reviews	go to diyPorting.com __________________ 94 gt- cobra bumper, 95 R hood, 98 cobra wheels, bbk equal lengths, DR GAS o/r X pipe, spintech prostreets, typhoon upper/lower, 65mm tb, 24lb injectors, 76mm mass air, homemade cai, msd 6a, pullies, steeda tri ax

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