gt 40-p heads

whitepony · 03-23-2005, 07:50 PM

hello everyone !!
i own a set of gt 40 p heads and wanted to know a little more about them before i do any machine work to them.

do they have 1.6 rockers,do they have a 3 angle valve job on them from factory.
thats all not much thanks

oh ya and if there is anything else i should know about them thanks!!!

Gs835.8Stang · 03-23-2005, 08:29 PM

I believe most all 302's came with a 1/6 rocker on them, as far as the 3 angle valve job goes, I can't say for sure. If I had to guess I would say no, but that's only a guess. How old are these heads? If they have any miles on them I would reccomend a 3 angle valve job. Are you doing the machine work yourself? Good luck with everything. I believe those heads came on explorer's from the factory, but again I could be incorrect. I have been in and out of the mustang hobby since approx. 1995, but I thought I read that somewhere one time. Take care.

rwhite65 · 03-23-2005, 10:28 PM

They did come on explorers and you are gonna need headers designed for those heads. Some guys have gotten by with headers that were not made for the GT-40p head, but I do not know what headers those were. I believe those headers had to be dented here and there.
Ryan

whitepony · 03-27-2005, 09:51 AM

ya they came off a 96 or something explorer.
i got my long tubes to fix i just dented them a bit.
so u guys think i should get the 3 angle, what about shaving them my stock heads have ben shaved and it helped out a lot.

none of this is being done by myself by a local shop

thanks mike

03-23-2005, 07:50 PM	#1
whitepony Registered Member Join Date: Feb 2003 Location: ontario canada Posts: 165	gt 40-p heads hello everyone !! i own a set of gt 40 p heads and wanted to know a little more about them before i do any machine work to them. do they have 1.6 rockers,do they have a 3 angle valve job on them from factory. thats all not much thanks oh ya and if there is anything else i should know about them thanks!!!

03-23-2005, 08:29 PM	#2
Gs835.8Stang Registered Member Join Date: Feb 2005 Posts: 13	Re: gt 40-p heads I believe most all 302's came with a 1/6 rocker on them, as far as the 3 angle valve job goes, I can't say for sure. If I had to guess I would say no, but that's only a guess. How old are these heads? If they have any miles on them I would reccomend a 3 angle valve job. Are you doing the machine work yourself? Good luck with everything. I believe those heads came on explorer's from the factory, but again I could be incorrect. I have been in and out of the mustang hobby since approx. 1995, but I thought I read that somewhere one time. Take care.

03-23-2005, 10:28 PM	#3
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	Re: gt 40-p heads They did come on explorers and you are gonna need headers designed for those heads. Some guys have gotten by with headers that were not made for the GT-40p head, but I do not know what headers those were. I believe those headers had to be dented here and there. Ryan __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

03-27-2005, 09:51 AM	#4
whitepony Registered Member Join Date: Feb 2003 Location: ontario canada Posts: 165	Re: gt 40-p heads ya they came off a 96 or something explorer. i got my long tubes to fix i just dented them a bit. so u guys think i should get the 3 angle, what about shaving them my stock heads have ben shaved and it helped out a lot. none of this is being done by myself by a local shop thanks mike

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