Add ons to my GT40p's

Scrapla · 12-23-2002, 06:02 PM

I just my gt40p's in today and sticking with my low budget plans I wanna hear some idead on RR's, lifters, anything to complete these heads on a budget I have the pics posted on the link below.

http://community.webshots.com/user/scrapla

Dark_5.0 · 12-24-2002, 10:51 AM

Ths springs should be good up to 520 lift. I would just get some good 1.6RR with a B or E cam.

JaxTheDJ · 12-24-2002, 01:19 PM

Good luck with those Mac equal Length headers,I have the WP Jack Roush heads and the equal lengths wouldnt clear #4 spark plug,and they are supposed to be the same angle as the GT40P's,I hope I am wrong but good luck.

Dark_5.0 · 12-24-2002, 02:25 PM

You have to get special headers for the GT-40P's.

fiveohpatrol · 12-24-2002, 04:57 PM

Most headers can be made to work with the P heads. You dont HAVE to get special headers, but you should to prevent future frustration.

I'm using BBK shorties on mine, and the only plug that is close is the #7, so I just used a 90degree boot on that wire. The passenger side has plenty of room on all 4 plugs.

like Dark_5.0 said, your springs are fine up to .520 lift, so as long as you dont go crazy with a cam choice, then you'll be ok there.

BTW RR's are a must IMO.

Scrapla · 12-24-2002, 07:11 PM

Well anyone with the P heads what headers are you using?

jruppert · 12-25-2002, 05:07 PM

I have a set of GT-40 P heads on my '94 GT. I use Motorsport 1 5/8 unequal length headers. I did take my headers and heat them up and put some dents into them around the plugs on the drivers side. A couple plugs are almost impossible to get to when the header is on.
I have some pics of my heads with the headers if you want to see what I did. Email me at josh_ruppert@hotmail.com and I can send them. I cant figure out how to put them in this message without using a web page as source.

macx · 12-29-2002, 11:50 AM

Just FYI there's an outfit in SW Indiana called headfixers that
sells upgraded P heads - guides, springs, larger SS valves, and
drilled for smog etc. They've got a set listed on ebay right now.
Pretty decent price for what should be good heads.

They might have some add on parts you'd be interested in.

Bullitt89GT · 12-29-2002, 06:35 PM

Where did you end up getting your heads from?

Scrapla · 12-29-2002, 07:25 PM

I got them from jegs, a little under $600 for the pair.

Bobasaurus · 12-29-2002, 08:10 PM

I purchased some 1.6RR on ebay from a guy called ped5stang. I have bought 3 things from him and they all were top quality for used parts.

Also in you pictures of the coil - That red wire from the battery may be on the wrong side of the soleniod??? Just a thought if you have not tried it out yet.

12-23-2002, 06:02 PM	#1
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	Add ons to my GT40p's I just my gt40p's in today and sticking with my low budget plans I wanna hear some idead on RR's, lifters, anything to complete these heads on a budget I have the pics posted on the link below. http://community.webshots.com/user/scrapla __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

12-24-2002, 10:51 AM	#2
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Ths springs should be good up to 520 lift. I would just get some good 1.6RR with a B or E cam. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

12-24-2002, 01:19 PM	#3
JaxTheDJ Registered Member Join Date: Aug 2002 Location: Jacksonville,Fla. Posts: 134	Good luck with those Mac equal Length headers,I have the WP Jack Roush heads and the equal lengths wouldnt clear #4 spark plug,and they are supposed to be the same angle as the GT40P's,I hope I am wrong but good luck. __________________ Jack 1989 Mustang LX: Converted to Carb.650 AED Holley DP,Weiand Stealth Intake,Edelbrock Performer RPM Aluminum Heads,Hooker Super Comps, Ground Pounder Uppers and Lowers,Moroso Drag Springs,NEW COMP Xtreme Energy Cam and 1.6 RR. ,a few other goodies.*** New 1/4 times-12.50 1987 SC GT ( fast as hell) 2001 Powerstroke Tow Vehicle 1989 Coupe. Sometimes when you cry,no one sees your tears.......... Sometimes when you are happy,no one sees your smile......... But,FART just ONE time..........

12-24-2002, 04:57 PM	#5
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	Most headers can be made to work with the P heads. You dont HAVE to get special headers, but you should to prevent future frustration. I'm using BBK shorties on mine, and the only plug that is close is the #7, so I just used a 90degree boot on that wire. The passenger side has plenty of room on all 4 plugs. like Dark_5.0 said, your springs are fine up to .520 lift, so as long as you dont go crazy with a cam choice, then you'll be ok there. BTW RR's are a must IMO. __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

12-24-2002, 07:11 PM	#6
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	Well anyone with the P heads what headers are you using? __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

12-24-2002, 02:25 PM	#4
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	You have to get special headers for the GT-40P's. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

12-25-2002, 05:07 PM	#7
jruppert Registered Member Join Date: Jul 2001 Location: Reed City Mi Posts: 106	I have a set of GT-40 P heads on my '94 GT. I use Motorsport 1 5/8 unequal length headers. I did take my headers and heat them up and put some dents into them around the plugs on the drivers side. A couple plugs are almost impossible to get to when the header is on. I have some pics of my heads with the headers if you want to see what I did. Email me at josh_ruppert@hotmail.com and I can send them. I cant figure out how to put them in this message without using a web page as source. __________________ '94 GT, 347 stroker, AFR 185's, Trick Flow stage 2 Cam, Edelbrock upper and lower, 70mm Tbody, 77mm MAF, 24lb injectors, 255 lph pump, underdrive pulleys, 1 5/8 Motorsport Headers, king cobra clutch, tremec tko, 3.73 gears, flowmasters

12-29-2002, 11:50 AM	#8
macx Registered Member Join Date: Oct 1999 Location: Gordonville MO USA Posts: 448	P Head Upgrades Just FYI there's an outfit in SW Indiana called headfixers that sells upgraded P heads - guides, springs, larger SS valves, and drilled for smog etc. They've got a set listed on ebay right now. Pretty decent price for what should be good heads. They might have some add on parts you'd be interested in.

12-29-2002, 06:35 PM	#9
Bullitt89GT Registered Member Join Date: Aug 2002 Location: Fl Posts: 7	Where did you end up getting your heads from?

12-29-2002, 07:25 PM	#10
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	I got them from jegs, a little under $600 for the pair. __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

12-29-2002, 08:10 PM	#11
Bobasaurus Registered Member Join Date: May 2002 Location: South Carolina Posts: 58	add ons I purchased some 1.6RR on ebay from a guy called ped5stang. I have bought 3 things from him and they all were top quality for used parts. Also in you pictures of the coil - That red wire from the battery may be on the wrong side of the soleniod??? Just a thought if you have not tried it out yet. __________________ Bobasaurus 1987 LX 5.0 - Engine Rebuild now installed - 26290 Wonderful Miles so far Items now installed from the garage : GT-40p heads, Explorer Intake, FMS "P" headers, Crower 15511, SFI Balancer, 24#, SPEC Stage 1, T5z, 65MM TB, 77MM Pro-M, 255lph Pump

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