MustangWorks.com : Ford Forums - View Single Post - Parts Donation From 97 Mountaineer to 89 Fox

Unit 5302 · 07-27-2006, 11:30 AM

I don't know what you're running on your '89. What I can tell you is that the Mountaineer's engine comes with:

GT-40P heads
Explorer Intake (Basically a GT-40/Cobra Lower with a slightly less aggressive Explorer Upper.)

The camshaft is very docile so you shouldn't expect to get much performance from it. The Mountaineer pistons are dished, I believe, which is why the compression ratio is lower than the 5.0HO engine that came in the Mustang's would be with the GT-40P heads.

The Explorer/Mountaineer block casting is also a little different than the HO Mustang blocks, if I remember right.

07-27-2006, 11:30 AM	#8
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Re: Parts Donation From 97 Mountaineer to 89 Fox I don't know what you're running on your '89. What I can tell you is that the Mountaineer's engine comes with: GT-40P heads Explorer Intake (Basically a GT-40/Cobra Lower with a slightly less aggressive Explorer Upper.) The camshaft is very docile so you shouldn't expect to get much performance from it. The Mountaineer pistons are dished, I believe, which is why the compression ratio is lower than the 5.0HO engine that came in the Mustang's would be with the GT-40P heads. The Explorer/Mountaineer block casting is also a little different than the HO Mustang blocks, if I remember right.