GT40 gains
01-02-2010, 04:42 PM
#3
1st Gear Member
Thread Starter
Join Date: Sep 2008
Location: Oregon
Posts: 114
ya thats what i was thinking, it couldnt only help.
this look like a good deal to ya'll?
http://portland.craigslist.org/mlt/pts/1528273233.html
this look like a good deal to ya'll?
http://portland.craigslist.org/mlt/pts/1528273233.html
01-03-2010, 07:15 AM
#9
4th Gear Member
Join Date: Oct 2009
Location: Pennsylvania
Posts: 1,772
All Explorer motors from build dates late 95 (last three months possibly four), all of 96, and the first two months of 97 come equiped with Cast iron GT-40 heads. They are the same that were on the 93-95 cobra and the 93-95 lightnings. They have 3 verticle bars on the front face of the head. These are not the "P" heads. The P heads were used from march on in 97 up to 00 or 01, whenever they quit installing 5 liters in the explorers and mountainers. The "P" heads will have 4 verticle casting bars on the front face of the heads. (front and rear corners, where the accessory bolt holes are) Go with GT-40 heads ........ not GT-40p's!
Last edited by 9redfox3; 01-03-2010 at 07:18 AM.
01-03-2010, 08:45 AM
#10
Banned
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
All Explorer motors from build dates late 95 (last three months possibly four), all of 96, and the first two months of 97 come equiped with Cast iron GT-40 heads. They are the same that were on the 93-95 cobra and the 93-95 lightnings. They have 3 verticle bars on the front face of the head. These are not the "P" heads. The P heads were used from march on in 97 up to 00 or 01, whenever they quit installing 5 liters in the explorers and mountainers. The "P" heads will have 4 verticle casting bars on the front face of the heads. (front and rear corners, where the accessory bolt holes are) Go with GT-40 heads ........ not GT-40p's!
they have larger combustion chambers, which will result in lower compression if not milled down a touch