what did y'all do to plug the holes in the heads? i heard 5/8 bolts will do, i was thinking some type of plug and jb weld? i want it to hold, and look clean. i have a body lift and headers, so i don't want buddies to be looking at my headers, see some jerry rigged crap and say "man what kind of hillbilly s**t is that"

 

i welded mine up. cant even tell the holes were there.

 

What engine?

 

its the 302 5.0, pulled from a 93 crown vic police cruiser, with intake and accessories swapped over from the original engine.

 

That I don't know, but on the I6 they are 1/4" NPT plugs so I would assume the same but larger for the V8s.

 

my i6 the holes were 9/16 by 18 treads

 

Yea, if you force them in. They are 1/4" NPT.