Ford 289W - 351W Engines CVF Billet Serpentine Wraptor System # 302-WRAPTOR-AC-D-34 Rate_15 or Firebird

or Firebird

diameter finished bore

They're available in different styles for use on a variety of vehicles from the 1950s and up

These valves are often referred to as idle air control or IAC valves (GM)

Ford 289W - 351W Engines CVF Billet Serpentine Wraptor System # 302-WRAPTOR-AC-D-34 Rate_15 or FirebirdFord 289W 351W Engines CVF Billet Serpentine Wraptor System # 302 WRAPTOR AC D 34 Ford 289, 302 & 351W Engine Serpentine Conversion Kit All Inclusive WRAPTORTM 8 Track Serpentine System for Ford Small Block engines with 140 Amp alternator, GM Type II Power Steering Pump and Peanut Style AC compressor. CVF Racing's 8 Rib Serpentine pulleys increase grip, reduce stretching and prevent slippage compared to traditional 6 Rib designs. Spring loaded Gates