I have a pro design cool head and have had it checked by a machine shop and the jugs checked
everything is true and not warped. I can get 20 minuites to a ride before the coolant is dumped
the cylinders I have been racing this banshee for 4 years it's a 2001 and I bought it brand new
this head has been on for 2 years (2nd head). why does this keep happening, does anyone
run copper washers on top of the head under the head nuts I'm thinking the nuts are grinding
into the aluminum head i can see groves and is giving me a false torque reading. Also I was
informed to lube the studs with SAE 30 weight oil this also keeps from a false torque reading
any help would be appreciated thanks.