Crossover Kit For Supercharged BBC Engines - Holley 250 & 420 

Complete Crossover Cooling Kits For Supercharged Big Block Chevy Engines - B&M/Holley 250 & 420 Kit without Bypass Port Inlet

Looking to get some temperature in your supercharged engine?  At last you can buy a custom designed crossover kit allowing the use of a thermostat or a kit with no thermostat.  The choice is yours.  Starboard inlet available by special order.