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What kind of header issues will a guy have with gt40p heads?? Those are what I am planning on using and no one said anything about header issues on them.
I think all GT-40 heads require different headers than a normal 351/other small block headers, I know for sure the P's do, but I think the regular GT-40 heads do also, and I have no clue about the GT-40X heads. The P's also have a wierd plug angle or something like that.
What kind of header issues will a guy have with gt40p heads?? Those are what I am planning on using and no one said anything about header issues on them.
GT-40P's have a different plug angle than the other heads. The spark plug issue is more frequently discussed on Mustang forums. I've heard everything from having to use short plugs, a combination of straight and angled spark plug wires, to having to unbolt the headers to change plugs.
I don't have any personal experience using them, but I have seen pictures of the heads and they come out almost 90* from the head compared to the angle on which the others sit.
GT-40's are at the normal angle, and I think the GT40-X and others,(GT-303, GT40Y), are as well, but I not 100% sure.
It might be wise to try and match your headers up to a set if possible beforehand to see if and how bad an issue you might have.
should i go with a muffler or would a glass pack work. im just worried that if i get a local guy to do it, that i wont have the correct back pressure. i was thinking of going with a high flow cat and a glass pack.
4-stroke engine does not require back-pressure to function correctly..
02-12-2009, 01:40 PM
