Just tossing this out there as I am not familiar with aluminum heads on a
big block, but I have had issues on smaller engines with the head warping.
Happened 3 times in 75K miles on a 1.7 Volkswagen engine (actually still
have the engine). Got to the point when I could do that job with my eyes
closed. Had the head milled each time - finally put a 165 degree
thermostat in and wired the electric fan to run anytime the ignition was
on. Keeping the aluminum cool seemed to be the key.
Krister
"Pelle Andersson" <[EMAIL PROTECTED]>
> > Aluminum heads on a cast iron block?
> > Is that a bad idea?
Pelle, Volvo & Saab have had aluminum heads since the early 70's. It is
actually a good idea, less weight, better heat dissipation, easily
repaired. The only downside is the cost, and that's gone down considerably
in the past few years.
BL
