Im at a fork in the road. I have this set off 990s and one is cracked. Im going to buy a new set of heads. Im just not sure what to buy.
The motor is a blown BBC in my V-Drive Nordic. Makes about 6 psi boost. Hydraulic cam. Turns about 6,500 rpm's.
Im thinking of a set of Canfields. They are the 310 runner.
Is it a big deal using aluminum heads on a cast iron block? Im curious about the expanding and contracting. Anybody have any thoughts?