Quote:

I just used set screws in my alu. heads. You can get them in most lengths and you have the benefit of being able to use an allen wrench to install them. I think i used 2 inch in mine, that way i can use all the head threads plus gasket thickness plus 1/2 header flanges plus another 1/2 or so for a lock washer and nut.Just be sure to use some anti-sieze on them. Randy





Maybe not as easy if headers need to come out if the engine is in the car, but full engagement in the heads is guaranteed... E-heads here.

Mine are from www.tacomascrew.com, it was local for me, but I believe they ship also.

A search on set screws turned this up...

http://www.tacomascrew.com/products/search/set%20screw