GT-40 Heads question....

Bluefox91LX · 11-19-2002, 03:22 PM

a buddy wants to sell me his GT-40 Heads off his 94 GT.

the previous owner said it was a GT40 crate motor....and my question is....are these the cast iron heads or the aluminum ones? anyone know which came on the crate motor?

ahh!!

Smokedawg · 11-19-2002, 03:51 PM

Summit carrys a 345hp Crate with GT-40X aluminum heads...You can tell by looking at them if they are aluminum or cast...

Agent_4573 · 11-19-2002, 04:56 PM

I'm not sure about the X's but the gt-40p's have a "p" stamped in the front of them.

Jthompson · 11-19-2002, 07:45 PM

A few people have gt40p heads for sale down here in cali for less than $500. Is that a good deal?

the gt40p heads were iron right?

Are they a good head?

Coupe50h · 11-19-2002, 10:00 PM

I think summit has p's for 525$ not exactly sure, and i've heard good things about them, personally im going with at least a 1.90 intk valve and aluminum head, yes p's are iron off the explorer/mountanier line, lots of potential though, many people perfer iron, i want aluminum for lightweight.

Agent_4573 · 11-19-2002, 11:32 PM

you can get them unmolested brand new for 475. If they've had port work or polishing or anynthing like that and there still under 500 then its a good deal.

84LX89GT · 11-20-2002, 07:16 PM

There were both a Ford GT40 cast iron and aluminum engine you could choose from, so who knows. I know the cast iron heads (i just bought some) have "GT" cast into below the exhaust ports (forget which side of the head). Usually aluminum is ALOT lighter color than cast iron and the block and heads will be different colors. This is all i can think of.

Jthompson · 11-21-2002, 02:58 PM

Check this site out guys, gives everything you ever wanted to know about the gt40P's with pictures and everything

http://www.geocities.com/motorcitymustang/gt40p.html

11-19-2002, 03:22 PM	#1
Bluefox91LX Registered Member Join Date: Sep 2002 Posts: 70	GT-40 Heads question.... a buddy wants to sell me his GT-40 Heads off his 94 GT. the previous owner said it was a GT40 crate motor....and my question is....are these the cast iron heads or the aluminum ones? anyone know which came on the crate motor? ahh!!

11-19-2002, 03:51 PM	#2
Smokedawg Tires Fear Me... Join Date: Jan 2001 Posts: 867	Summit carrys a 345hp Crate with GT-40X aluminum heads...You can tell by looking at them if they are aluminum or cast... __________________ 1990 Mustang GT- 347 Stroker-Tremec 3550-Compucar Nitrous, AFR, Systemax Intake, AFM, 30lbers, 70MM TB, 76mm MAF, full suspension and lots more 1995 Chevy S-10 406 SBC, Dual tunnel ram, Dart heads, Nitrous, full tub, 4-link, adjustable drag shocks, coil-overs, 9in rearend, 4.56 gears...etc

11-19-2002, 04:56 PM	#3
Agent_4573 Registered Member Join Date: May 2002 Location: New Jersey Posts: 375	I'm not sure about the X's but the gt-40p's have a "p" stamped in the front of them. __________________ '89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression. If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout. RICER HATERS CLUB MEMBER 87! www.ricehatersclub.com

11-19-2002, 07:45 PM	#4
Jthompson Registered Member Join Date: Sep 2002 Location: Corona, Ca. Posts: 80	A few people have gt40p heads for sale down here in cali for less than $500. Is that a good deal? the gt40p heads were iron right? Are they a good head? __________________ Jeremy 1986 Mustang GT Convertible 1972 2 door 302 Maverick 1994 POS head gasket clubbed broke down T-bird with $6000 left to pay off

11-19-2002, 10:00 PM	#5
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	I think summit has p's for 525$ not exactly sure, and i've heard good things about them, personally im going with at least a 1.90 intk valve and aluminum head, yes p's are iron off the explorer/mountanier line, lots of potential though, many people perfer iron, i want aluminum for lightweight. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

11-19-2002, 11:32 PM	#6
Agent_4573 Registered Member Join Date: May 2002 Location: New Jersey Posts: 375	you can get them unmolested brand new for 475. If they've had port work or polishing or anynthing like that and there still under 500 then its a good deal. __________________ '89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression. If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout. RICER HATERS CLUB MEMBER 87! www.ricehatersclub.com

11-20-2002, 07:16 PM	#7
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	There were both a Ford GT40 cast iron and aluminum engine you could choose from, so who knows. I know the cast iron heads (i just bought some) have "GT" cast into below the exhaust ports (forget which side of the head). Usually aluminum is ALOT lighter color than cast iron and the block and heads will be different colors. This is all i can think of. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

11-21-2002, 02:58 PM	#8
Jthompson Registered Member Join Date: Sep 2002 Location: Corona, Ca. Posts: 80	Check this site out guys, gives everything you ever wanted to know about the gt40P's with pictures and everything http://www.geocities.com/motorcitymustang/gt40p.html __________________ Jeremy 1986 Mustang GT Convertible 1972 2 door 302 Maverick 1994 POS head gasket clubbed broke down T-bird with $6000 left to pay off

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