The ones I have are 1.130" and they are too tall. Comp has a set that are 1" tall exactly. Does anyone make a shorter set? Mine barely contact the valve cover and I'm not sure 0.13" is enough extra clearance. Anyone know of a shorter set?

They're 7/16" stud, 0.600" wide.

 

i use the comp ones and put them in lathe and take off around .1 or .12 to increase my clearance with the valve covers. sorry i don't know of any shorter nuts.

 

Ah, I didn't know you could do that. I'll probably just trim down the set I have then

 

If you need another option, Stef's makes a aluminum valvecovers that are ~1/4" taller than stock. I had to do some clearancing of the support ribs to clear my big-azz rockers, other than that they went right on.

They cost me $138 w/ tax and shipping with no polishing, pics at:

http://members.fbody.com/kevinc/valvecov/

Manufacturer catalog:

http://www.stefs.com/bb/39.htm

 

Nah, it seems really stupid to get bigger covers when the rockers aren't the issue--only the nuts interfere. Besides, I don't particularly feel like buying ANOTHER set of valve covers.