Porting and polishing my gt40p's

ALEXLOPEZ62188 · February 15th, 2011, 08:20 PM

like the title says.
i also ordered the trick flow valve springs to go with the trick flow stage 1 cam.
other things i got to go with the upgrade, professional products 70mm throttle body and a cobra 70mm MAF.

Timm10221 · February 15th, 2011, 08:25 PM

ALEXLOPEZ62188 · February 15th, 2011, 08:38 PM

Think it's a little optimistic to hope for 270whp?

Uber88GT · February 15th, 2011, 08:42 PM

Almost worth a "Cool Story Bro!" pic, but not quite.

Timm10221 · February 15th, 2011, 08:48 PM

Originally Posted by Uber88GT

Almost worth a "Cool Story Bro!" pic, but not quite.

1slo5.0 · February 15th, 2011, 09:02 PM

Originally Posted by ALEXLOPEZ62188

like the title says.
i also ordered the trick flow valve springs to go with the trick flow stage 1 cam.
other things i got to go with the upgrade, professional products 70mm throttle body and a cobra 70mm MAF.

Don't waste the time or money with the port work. Just have a good 3 angle valve job and put the new springs on. Have the machine shop check them over real good for anything else that might need to be replaced.

ALEXLOPEZ62188 · February 15th, 2011, 09:53 PM

Originally Posted by 1slo5.0

Don't waste the time or money with the port work. Just have a good 3 angle valve job and put the new springs on. Have the machine shop check them over real good for anything else that might need to be replaced.

My dad is doing all the work at his machine shop so I'm not really concerned with the money.
You don't think it'd be worth the effort to port/polish? He's gonna polish my cobra intake bottom piece too

ALEXLOPEZ62188 · February 15th, 2011, 10:10 PM

Originally Posted by 1slo5.0

Don't waste the time or money with the port work. Just have a good 3 angle valve job and put the new springs on. Have the machine shop check them over real good for anything else that might need to be replaced.

My dad is doing all the work at his machine shop so I'm not really concerned with the money.
You don't think it'd be worth the effort to port/polish? He's gonna polish my cobra intake bottom piece too

1slo5.0 · February 16th, 2011, 12:12 AM

Originally Posted by ALEXLOPEZ62188

My dad is doing all the work at his machine shop so I'm not really concerned with the money.
You don't think it'd be worth the effort to port/polish? He's gonna polish my cobra intake bottom piece too

No. A 3 angle valve job and maybe a little bowl work but that is about it.

xxvicarious · February 16th, 2011, 12:36 AM

Haha the heads are almost done. The port/polish looks pretty sick. Im sure theyll flow better. Ill be at the shop tomarrow, I wanna knock out the exhaust leak on that header.

1slo5.0 · February 16th, 2011, 08:16 AM

Originally Posted by xxvicarious

Haha the heads are almost done. The port/polish looks pretty sick. Im sure theyll flow better. Ill be at the shop tomarrow, I wanna knock out the exhaust leak on that header.

Probably hurt flow too. I didn't say "no, just some bowl work" because I wanted to see myself post. People screw these heads up all the time trying to port them. Good luck.

gripthenboost · February 16th, 2011, 08:32 AM

If you can do it for free go for it. I had my new heads polished by the machine shop but he owed me one so it was a freebe.

ALEXLOPEZ62188 · February 16th, 2011, 11:14 AM

Originally Posted by 1slo5.0

Probably hurt flow too. I didn't say "no, just some bowl work" because I wanted to see myself post. People screw these heads up all the time trying to port them. Good luck.

fakkkkkk..
well worst come to worst, i guess ill invest in some aluminum ones if these turned out bad.

thanx for your input bro

Cobraman1024 · February 16th, 2011, 11:35 AM

My factory Cobra GT40 heads were ported by a guy who used to do the GT40 porting research for Tasca Ford in Rhode Island. Basically he knows what he's doing with these heads. With my Cobra lower intake ported by TMoss, my numbers with an E303 cam are at 275/305. When I had the Edelbrock RPM II intake on this combination, it was at 280rwhp. I switched back over to the ported Cobra intake because the average torque was better with it than the RPM II.

1slo5.0 · February 16th, 2011, 11:40 AM

Originally Posted by Cobraman1024

My factory Cobra GT40 heads were ported by a guy who used to do the GT40 porting research for Tasca Ford in Rhode Island. Basically he knows what he's doing with these heads. With my Cobra lower intake ported by TMoss, my numbers with an E303 cam are at 275/305. When I had the Edelbrock RPM II intake on this combination, it was at 280rwhp. I switched back over to the ported Cobra intake because the average torque was better with it than the RPM II.

Good factual info right there.

February 15th, 2011, 08:20 PM	#1
ALEXLOPEZ62188 Mustang Fanatic 1989 Mustang LX Join Date: Feb 2011 Location: Apple Valley, CA Posts: 409 iTrader: 0 reviews	Porting and polishing my gt40p's like the title says. i also ordered the trick flow valve springs to go with the trick flow stage 1 cam. other things i got to go with the upgrade, professional products 70mm throttle body and a cobra 70mm MAF.

February 15th, 2011, 08:38 PM	#3
ALEXLOPEZ62188 Mustang Fanatic 1989 Mustang LX Join Date: Feb 2011 Location: Apple Valley, CA Posts: 409 iTrader: 0 reviews	Think it's a little optimistic to hope for 270whp? __________________ 89 Mustang LX: 347 AFR Comp Cam TFS Track Heat 359rwhp 395rwtq

February 16th, 2011, 08:32 AM	#12
gripthenboost Hardcore Enthusiast 91 Mustang GT 1991 sliver GT Join Date: Apr 2010 Location: New York Posts: 1,213 iTrader: 0 reviews	If you can do it for free go for it. I had my new heads polished by the machine shop but he owed me one so it was a freebe. __________________

February 16th, 2011, 11:35 AM	#14
Cobraman1024 Enthusiast 1995 SVT Cobra Join Date: Nov 2010 Location: Fall River, MA and Juffair, Bahrain Posts: 780 iTrader: 0 reviews	My factory Cobra GT40 heads were ported by a guy who used to do the GT40 porting research for Tasca Ford in Rhode Island. Basically he knows what he's doing with these heads. With my Cobra lower intake ported by TMoss, my numbers with an E303 cam are at 275/305. When I had the Edelbrock RPM II intake on this combination, it was at 280rwhp. I switched back over to the ported Cobra intake because the average torque was better with it than the RPM II. __________________ 1995 SVT Cobra #182/4005, 275/305, 217k miles 1996 SVT Mystic Cobra #1666/2000, 267/263, 178k miles 1995 Mustang, 3.8L, 233k miles 1993 Mustang LX, 2.3L, T5 convert, 95 GT suspension swap, 03 Cobra steering rack, 250k miles sold: 1987 GT MM Military Crew Member MM+Cleavage member #21

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February 15th, 2011, 08:42 PM	#4
Uber88GT Regular 1988 Mustang GT Join Date: Oct 2009 Location: Edmonton, Alberta, Canada Posts: 456 iTrader: 0 reviews	Almost worth a "Cool Story Bro!" pic, but not quite.

February 16th, 2011, 12:36 AM	#10
xxvicarious Regular 1985 Mustang GT 12.89@107.72 Join Date: Nov 2010 Location: Apple Valley, CA Posts: 113 iTrader: 0 reviews	Haha the heads are almost done. The port/polish looks pretty sick. Im sure theyll flow better. Ill be at the shop tomarrow, I wanna knock out the exhaust leak on that header.

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