PROS and CONS of a high compression head

[Charlie Stephens]

Originally Posted by 28ACoupe

As I recall, there is a very "Stock" looking HC head out there. Does anyone happen to know the make? Also, what would be wrong with simply shaving the stock head an appropriate amount to get to the CR you are looking for?

There is not enough metal to shave the head enough to make a difference. The overall head is thick but when you look closely at some of the head to water jacket thicknesses you will see what I mean. Plus if your pistons extend slightly about the surface of the block you will have an interference problem between the head and piston.

Charlie Stephens

[28ACoupe]

Got it! Thanks. I rather suspected this was the case.

Originally Posted by Charlie Stephens

There is not enough metal to shave the head enough to make a difference. The overall head is thick but when you look closely at some of the head to water jacket thicknesses you will see what I mean. Plus if your pistons extend slightly about the surface of the block you will have an interference problem between the head and piston.

Charlie Stephens