SpeedFactory Racing FWD Billet Bell Housing for Honda B Series SpeedFactory:Default Title SpeedFactory's precision-engineered billet thermostat housing

SpeedFactory's precision-engineered billet thermostat housing delivers superior cooling system performance for B and D series engines

Built to OEM fitment standards

it resists corrosion and withstands high-temperature environments

and rings for ready-to-install convenience

The refined skirt geometry minimizes friction and side loading while preserving structural integrity—ideal for builders pursuing maximum power output in naturally aspirated K-series engines without boost complications

SpeedFactory Racing FWD Billet Bell Housing for Honda B Series SpeedFactory:Default Title SpeedFactory's precision-engineered billet thermostat housing