gt40 motor

[slow96mustang]

im thinking about buying the gt40 long block for either a mustang im buying, or my truck. ive found them for as low as 1200 dollars.

are these good motors, i know they claim something like 340 out of them. sounds good.
anyone have any experience with them?

 

[SamSnyder]

I've got 75k miles on an iron head GT40 longblock I bought new. I swapped the B303 that came in it for an E303. It runs great and burns virtually no oil even after several years and all those miles. The downside is that they came with cast pistons, although that may be better in a pure street car, since they are usually tighter and quieter.

 

[just4bob50]

where did you find a gt-40 motor for 1200

 

[slow96mustang]

where did you find a gt-40 motor for 1200

there is a small, small, SMALL engine shop, that is owned at the guys home up here, and he gets alot of motors for cost. his names don.

 

[nito88stang]

Just swap out the cam like was said earlier and you'll prob have to change the timing chain and a few other small things.

 

[SamSnyder]

I'd check to see if it's a factory GT40 versus a rebuild -- my info is that the stock of new factory motors is long gone, which may explain the cost difference. I think new factory long block motors were twice that much. Not that there's anything wrong with a rebuild, but there is a quality control and parts quality question on any rebuild as opposed to a new factory motor, as well as the question of an overbore and machining techniques.

 

[super302]

I have a GT-40 crate engine, with e303 cam, makes a TON of power, doesn't burn any oil either