Product Specifications Part Number 4363 Emission Code 3 Diameter 2.12" Weight 0.2000 Product Description GM/Ford/AMC - 160 degrees. Opens at 160 Degrees Designed to Resist Large Variations of Coolant Pressure at High RPM Fully opens at Correct Temperature Consistently Regardless of engine RPM For High Performance Street, Drag Race, and Oval Track Copper & Brass Construction - Resists Corrosion High Flow Specification: Material: copper/brass .
