fastlt1

iTrader: (4)

When reusing all the original factory fasteners in rebuild, what are you using Loctite on and what color?

Floorman279

iTrader: (11)

anything that needs loctite will already have them on it if using new factory fasteners. but nothing wrong with a few dots of blue loctite on anything. except the valve cover and intake bolts, unless u bought new stainless ones that long

fastlt1

iTrader: (4)

Just reusing old stuff

Floorman279

iTrader: (11)

so are you wondering what bolts should have loctite on them from the factory then? honestly i think just the head bolts have something on them but whats weird is arent you supposed to retorque the head bolts after a few heat cycles which would then break the seal on the loctite, or is that just with head studs which dont use loctite?

the only thing i would think that loctite could be needed is the long intake bolts but buying the strongest grade of bolt in that length i could

patSS/00

iTrader: (6)

Per the 2000 service manual, loctite is only used on the intake manifold, exhaust manifold, and flywheel bolts. It gives a GM part # which according to posts on here is equivalent to blue loctite. For the flywheel bolts it also acts as sealer.

The intake bolts will definitely back out if you don't loctite them.

EDIT: Forgot one: manual says loctite also for the small M8 head bolts.

KCS

iTrader: (20)

I use it on the cam gear bolts too

QwkTrip

iTrader: (23)

And the bolts that hold the oil pump pickup tube.

I'm not sure Loctite helps anything for exhaust manifolds because of the heat. I once had a little screw that somebody installed with "red" Loctite and it was never coming apart in a million years. I put it in an oven for a little bit and the Loctite released and I got the little screw out.