" Besides, head bolts under tension will probably exert more force on the
head in use than the weights would. And the head, in use, will see a bit of
heat..."

Yeah! Bit of heat is right! What caused my manifold to warp: The
thermostat came apart and locked itself in the closed position. Engine
overheated; stupid driver continued to drive until just before engine
seized; engine survived, heat caused aluminum intake manifold to severly
warp beyond sealing range of new gasket. Epoxy to the rescue.

Bob Swinney

"Dave Hinz" wrote in message
...
On Wed, 2 Mar 2005 11:30:40 -0800, Lane wrote:

wrote in message
oups.com...
Can an overheated aluminum engine head be heat treated (with weights on
it to keep it flat) to bring back its temper and hardness?

Joe


If it's going to warp there is nothing you can do to prevent it. It's all
about internal stresses in the metal. If such weight keeps it flat, it
will
warp upon removal of the weight.