I have been in the cooling system business for 45+ years. Most all of my work has been with Original Equipment Manufactures off Off-Highway equipment. Having said that the laws of physics do not change if your cooling 300 hp or 3,000 hp. There was several hours of manufacturing and design engineering spent on the cooling package on your crossfire. Making changes the following needs to be known.

• Air Flow
• Air restrictions
• Water Flow
• Pressure Drops
• GPM
• Expansion Tank Size (Closed System or Open System)

I had discussed this is less detail on another thread and still believe the best options if Engine Performance has not been changed to Replace OEM, Repair, or re-build at local radiator shop.