Designed for big block engines. Made of Investment Cast 316L Stainless Steel highly polished to a mirror finish. Kits come complete with cast crossover housing with bypass, thermostat housing with bypass and water inlet fitting. Water Inlet fitting can swivel 360 degrees to any position for easy pluming and comes standard with an 1-1/4” hose barb connection. Also available with a #16 SAE Flare Inlet connection.