BBC S/F 1.880in Exhaust Valves a signal is created to

a signal is created to alert the ECU of the position and firing order of the engine

5 in ID - 1 in Tall - Shock Mount - 70A Durometer - Polyurethane - Green - Each

762 in Shaft Size - Steel - GM 4 / 6 / 8 Cylinder - Each

Fuel Pump - Phantom - Electric - In-Tank - 340 lph at 45 psi - Center Filter Sock Inlet - 6 AN Outlet / Return / Vent - Install Kit - Gas - Plastic Fuel Tank - GM Fullsize Truck 1999-2004 - Kit

50 Thread - 30 mm Long - 12 mm 12 Point Head - Washers Included - Chromoly - Black Oxide - Universal - Set of 5

BBC S/F 1.880in Exhaust Valves a signal is created toExhaust Valve Street Flo 1. 880 in Head 0. 372 in Valve Stem 5. 350 in Long Stainless Big Block Chevy Set of 8