trans_am7935

iTrader: (15)

so i know that any kind of head that is ported will have these holes, but i was wondering if i should patch these up, or what type of sealant i was supposed to use on the rocker arm so oil doesn't bleed through into the cylinders?

swift700

iTrader: (3)

I was wondering the same thing after looking at my heads today. I guess a good heatproof silicone sealant would take care of any intake leaks associated. I have some quality aviation stuff I'm thinking of using.

NHRAFORMULA00

iTrader: (2)

Use Permatex Number 2 nonhardening thread sealant on the bolts that protrude into the intake ports.This is what has been in use for 35-40 years on small block chevy head bolts.This will seal them up,and will also make them easy for removal later down the road.

LS1-450

iTrader: (33)

Permatex bolt sealer or can use a high temp silicone.

Jon@Texas-Speed

iTrader: (18)

A RTV or a teflon based sealant should work fine. Not an issue at all.

Jon

trans_am7935

iTrader: (15)

thanks guys, i was gonna use clear RTV silicone in the first place. appreciate it

trans_am7935

iTrader: (15)

also do i need to use copper spray on my .040 brand new cometic head gaskets? they are still in the package and have not been removed yet?

vettenuts

iTrader: (4)

I prefer Hylomar to the copper spray.

On the rocker bolts, mount up a set and make sure the bolt doesn't protrude into the intake. If it does you can get shorter bolts. In my case I needed longer due to shimming required to get the rocker geometry correct.

Jon@Texas-Speed

iTrader: (18)

I would use the copper spray on Cometics. It will help seal them up good on a seasoned block.

Jon

trans_am7935

iTrader: (15)

were do i get this cooper spray stuff, anyone know?

NBM99SS

iTrader: (33)

Advance Auto sells it

trans_am7935

iTrader: (15)

cool, thanks