Header Clearance

[m_owing]

I know it'll hurt taking a hammer to new headers but a dent won't make an ounce of perf difference. Can make a pretty clean job of it by marking, removing, lay one hammer against it and strike with another (eye protection in place please).

There you go with your blacksmithing again. I won't do it!

Yes, shim the lower stud where the mount goes into the subframe, not the upper engine mounts. You can also use a level on the intake, to allow you to possibly just shim the driver’s side to get the clearance you need, and ya, there are locating pins, but they don’t mean much at all, more a reference point than anything.

Couldn't even get the mount-kmember nuts off. Impact and everything. I let it soak in penetrating oil and I'll take a torch to it. Might order new mounts anyway. But I won't get a chance to get back to my work space for a while.

In the meantime I decided to look at other headers and noticed something I didn't before. I put together a collage thinking someone like myself might stumble upon this thread way in the future and it may help

All shown are drivers side header. NOT to scale. The headers on the right all follow the same primary routing, with the '1st' and 'last' primary going to the 'outside' of the collector. The column on the left are a bit different. Curious enough, the MAC picture are the ones I took off the car (full of holes) but fit nonetheless, and have the same orientation as the Flowtechs that didn't fit, perhaps the primaries on the MACs are 1-5/8", I know the flowtechs are 1-3/4"

shorty_header_comparison.jpg