A different kind of GT-40 head question

Scappoose · 01-09-2002, 02:29 PM

I think. Anyway, first, are there any casting numbers or any ID on the GT-40 or GT-40P heads to identify them at a swap meet?

Second, are the GT-40Ps set up for standard-type, bolt-in rockers and will the will stock valve covers fit them?

Third, (which isn't exactly related to the heads), will the stock valve covers work with any roller rockers? Will the FMS 1.6s work or even the Cobra style 1.7s? I really want to keep the stock covers to keep it looking, well, stock. Plus, call me crazy, but I luv the way those covers look.

As always, thanks for the help.

LX XLR8R · 01-09-2002, 04:50 PM

yes it is quite easy to pick out a gt-40 head..regaulr gt-40 heads will say GT on each head below the spark plug holes..they can also be distinguished by 3 lines on the end of the head where the acessories or the EGR on the back of the head wold be located

GT40P heads will still say GT(or it might say GTP..i dont tember) on each head and will have 4 lines at the ends of the heads and can be quickly seperated from any other head out there by the angle that the spark plug goes into the head..they go in perpendiclar to the head as oposed to at about a 35deg angle

some roller rockers will work under the stock valve covers..you want to look for the round style as oposed the the boxier type if you wish to use the stock valve covers...cutting out the baffle will most likly still be required

89 Cobra LX · 01-09-2002, 05:04 PM

I'm running bolt-on FMS 1.6 roller rockers on my GT-40ps.

I always look for the 3 or 4 lines to see if they are indeed GT-40 heads.

01-09-2002, 02:29 PM	#1
Scappoose Registered Member Join Date: Nov 2001 Location: Scappoose, OR Posts: 42	A different kind of GT-40 head question I think. Anyway, first, are there any casting numbers or any ID on the GT-40 or GT-40P heads to identify them at a swap meet? Second, are the GT-40Ps set up for standard-type, bolt-in rockers and will the will stock valve covers fit them? Third, (which isn't exactly related to the heads), will the stock valve covers work with any roller rockers? Will the FMS 1.6s work or even the Cobra style 1.7s? I really want to keep the stock covers to keep it looking, well, stock. Plus, call me crazy, but I luv the way those covers look. As always, thanks for the help. __________________ 91 GT - White, MAC cold air induction (that's it so far) 69 GT - Winter Blue, 351, C-4, mild mods 69 Mach I - Acapulco Blue, 351, T-10, bone stock

01-09-2002, 04:50 PM	#2
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	yes it is quite easy to pick out a gt-40 head..regaulr gt-40 heads will say GT on each head below the spark plug holes..they can also be distinguished by 3 lines on the end of the head where the acessories or the EGR on the back of the head wold be located GT40P heads will still say GT(or it might say GTP..i dont tember) on each head and will have 4 lines at the ends of the heads and can be quickly seperated from any other head out there by the angle that the spark plug goes into the head..they go in perpendiclar to the head as oposed to at about a 35deg angle some roller rockers will work under the stock valve covers..you want to look for the round style as oposed the the boxier type if you wish to use the stock valve covers...cutting out the baffle will most likly still be required __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

01-09-2002, 05:04 PM	#3
89 Cobra LX Don Corlione Join Date: Jun 2001 Location: Omaha NE USA Posts: 491	I'm running bolt-on FMS 1.6 roller rockers on my GT-40ps. I always look for the 3 or 4 lines to see if they are indeed GT-40 heads. __________________ Eric - 89 Mustang LX coupe 5 speed 302-Cobra Intake-GT40p heads-TFS stage 1 cam-FRPP 1.6 roller rockers-3:73 gears-KYB shocks and struts-Eibach Pro-kit-HPM Mega-bite upper and lower control arms-FRPP aluminum driveshaft-16x8 Chrome Cobra Rs R.H.C. #14

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
question about the motor in my 86 gt	bubba32	Windsor Power	3	02-27-2002 02:30 PM
Head Question	DiabloLX	Windsor Power	1	11-06-2001 05:26 PM
Another head question	Smokedawg	Windsor Power	7	10-24-2001 11:09 PM
A GT question...	#1 Pony	Blue Oval Lounge	0	07-11-2001 03:23 PM
Extatic about new car ('89 Mustang GT), exhaust question	84stangLX	Windsor Power	5	07-03-2001 11:09 PM