Re: head tightening

[<dcong996@earthlink.net>]

Giday Douglas-
I was taught by the old timers to run the engine until it reaches normal 
operating temperature (usually 10 to 15 minutes), then shut it off. 
Re-torque each head bolt in the same sequence as before while the engine is 
still warm.  Some engine builders recommend backing off the nut slightly and 
then bringing it back to torque specs.

Recommendation for aluminum heads incidentally is to let them cool to room 
temperature before re-torque.

FWIW
Dallas