SIKHS 5

im running stock manifolds(lq4 on the pass. - ls1 on the drivers), i cant seem to find the nuts i need for the collector bolts. my dad owns a hardware store and i literally tried everything. i know its not 7/16-14 or m10...

does anyone know the thread size/pitch of the bolts or the nuts or anything

thanks

SIKHS 5

Bump.

bczee

iTrader: (12)

It's a metric stud and nut.. I think it is 10m x 1.5m (if not it will be the smaller 8m x 1.5m).

Using SAE on Metric (and the other way) is like putting a round nut on a square peg.. I might be close.. but your not going to like the results. !

BC

SIKHS 5

I tried using m10 1.5 the other day and had no luck :/ multiple nuts on all the studs and they would all get stuck about a 1/4 of the way down. The Studs seem slightly tapered, not 100% sure though.

71403

Run a tap thru the holes first especially if you had to use a torch to get the old ones out. Can't speak for the truck manifolds but LS1 cast iron pieces here were M10-1.5