Racing Head Service (RHS) 7940-1 Features: Made From 0.080 in. Wall Chromemoly Steel Tubing Heat Treated Black Oxide Finish Laser-Etched Part Number And Length Smoother More Efficient Valve Train Operation Designed For Hard Core Street/Race Applications Height: 11.25 Width: 3.00 Length: 0.25 Weight: 0.12 lbs