Anyone use GT40aluminum heads

[srdstang]

I am thinking about buying them. 289-302-351W GT 40 ALUMINUM HEADS. CAST.# M6049 X302 They are the bare heads and are 64cc chamber. Will they fit or not? anyone have any luck with them, they say bolt on 65 horsepower?

 

[93 Red L]

I have the GT40x heads on my mustang....made a nice difference on that. Thought about moving them to the L but think their valve size might be a little small for a mildly moded 351.

 

[sstock]

stang, hang tight for a day or so.
I put my ported GT40X on a couple of days ago, the engine really likes these heads, based on my boost dropping almost 2psi, I can conclude that airflow is definately up, and the truck pulls harder than ever on the mid and top ends. But, stay tuned ,on Wednesday, I have an appointment at Turbo Tech to get on the rollers with a wide band to see what my new fuel need are going to be and will give you a new RWHP figure. Last year I pulled 326hp with 8lbs of boost at 4900 RPM. Since then I've added Bassani Headers and JMS chip and new ASP pulley, and ported X heads and Steeda 1.72 rockers. We will see what that brings

Later
Steve