Racing Head Service (RHS) 7684-16 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 Street Performance/Mild Racing Height: 12.65 Width: 3.75 Length: 1.75 Weight: 2.82 lbs Fitment: 2011/GMC/Sierra 1500/WT Standard Cab Pickup 2-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2011/GMC/Sierra 1500/WT Extended Cab Pickup 4-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2011/GMC/Sierra 1500/WT Crew Cab Pickup 4-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2011/GMC/Savana 1500/Base Standard Cargo Van 4-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2011/GMC/Savana 1500/Base Standard Cargo Van 3-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2011/Chevrolet/Silverado 1500/WT Standard Cab P...