I am installing rollerrocker studs (steel) in aluminum heads as well as manifold bolts . Trick Flo says use motor oil not anti-seize .Will just oil be sufficient to prevent them rusting in threads? I know torque values are approximately 25% less than motor oil with anti-seize. So lets say the intake bolts require 22 foot pounds , 25% of 22lbs. is approximately 6lbs. So I'd torque them down to 16? Or just use oil?

 

DO what it says, and the instructions will be using the torque specs with the motor oil in mind.
They're having you use oil to prevent galling as you're putting the bolt into the aluminum head, not for rust
resistance or prevention. This is to be sure you get the bolt all the way in, and does not gall to the
metal before reaching proper position at the proper torque. If a bolt galls to the metal on the way in,
it will not tighten all the down. This is also why you oil them, spin them in by hand till the bolt heads
mate with the manifold surface, snug by hand, then you torque them in.

Nothing will prevent the issues you have with exhaust side head bolts because of the heat and cooling they
go through.

 

If I ever have to disassemble the intake , will just motor oil prevent seizing? I was under the impression that anti-seize was a superior lubricant which would prevent gauling. !!

 

All I really want to know is......will I be able to remove oil coated bolts from an aluminum head two years from now without being seized up.

 

Probably not, the motor oil is not for anti-seizing. You can use anti-seize, plenty of shops
do. Nickel anti-seize is rated at 2600-f, and is used on exhaust components. You use the
oil on the studs into the head, then anti-seize on the nuts to the studs.

You can use copper slip... Though it has a lower temp rating, lots of shops use it
as a topper. The rust and seizing takes place up top, not below the gasket line.

 

Thanks 08 Mustangdude for your quick reply..I used motor oil on the head bolts.
The rocker studs and intake I will use anti-seize with a 20-25 % reduction in torque!

 

20% is acceptable, no more than 25%... If you have torque specs for a cast iron head, you
already have to back it off going into an aluminum head. Just in case...