GT40P heads on 67 Mustang

sixtiestang · 04-29-2000, 10:06 AM

I'm have a set of GT40P heads that I was going to use on my "67" 289 motor.
I've read headers can be a problem due to spark plug location on newer Mustangs is the same true for early models.

Any advice on headers selection would be of great help.

Billgear · 04-29-2000, 11:10 PM

Ive heard that MAC headers work and Central Coast Mustang is suppost to be making Tri-Y's
for the early model stangs.

Regards,
BillGear

sixtiestang · 04-30-2000, 09:09 PM

Thanks,
Called Central Coast $199.00 std / $299.00 coated. 3 weeks to ship.

Now I'm looking for rocker arms
Heads look to be for 5/16" boltdown rockers.
I've got Xtreme energy 274 cam,lift is .521"
Can I use stock bolt down rocker from late model 5.0 on the GT40P's with this cam.
Would like to go with stud mount roller tip rocker later but not in the budget right now.

04-29-2000, 10:06 AM	#1
sixtiestang Registered Member Join Date: Apr 2000 Posts: 4	GT40P heads on 67 Mustang I'm have a set of GT40P heads that I was going to use on my "67" 289 motor. I've read headers can be a problem due to spark plug location on newer Mustangs is the same true for early models. Any advice on headers selection would be of great help.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Sparkplugs for GT40P Heads	saleen243	Windsor Power	4	09-19-2003 10:34 PM
New Heads. Any Tips	66StangGuy	Classic Mustangs	5	09-15-2003 08:20 PM
Got my GT40P heads, should I have machine work done, new springs?	QuantumMotorsports	Windsor Power	6	08-10-2003 11:44 PM
switching heads on my 84 mustang	jetski_vegas	Windsor Power	3	02-06-2002 08:28 PM
E7 Mustang 5.0 heads on a regular '83 5.0 motor	Nitrous Al	Windsor Power	5	11-21-2001 10:00 PM

04-29-2000, 11:10 PM	#2
Billgear Registered Member Join Date: Jan 2000 Location: Concord,CA Posts: 86	Ive heard that MAC headers work and Central Coast Mustang is suppost to be making Tri-Y's for the early model stangs. Regards, BillGear

04-30-2000, 09:09 PM	#3
sixtiestang Registered Member Join Date: Apr 2000 Posts: 4	Thanks, Called Central Coast $199.00 std / $299.00 coated. 3 weeks to ship. Now I'm looking for rocker arms Heads look to be for 5/16" boltdown rockers. I've got Xtreme energy 274 cam,lift is .521" Can I use stock bolt down rocker from late model 5.0 on the GT40P's with this cam. Would like to go with stud mount roller tip rocker later but not in the budget right now.