Chevrolet 350 LS1 Thermostat Housing 1-1/2 Hose ConnectionMachined from 6061-T6 Billet aluminum and uses O-ring seals eliminating the need for gaskets or messy silicone. For 54mm Early Model Chevrolet Thermostat. Approximately 2 1/4 from the bottom to the highest point (top of the hose connection) *Stainless steel bolts are included.
Bell housings
Air & Fuel