Competition Cams CL12-239-3 Features: Xtreme 4 X 4+ Camshaft 1 Year Limited Warranty Height: 3.00 Width: 5.50 Length: 26.00 Weight: 13.18 lbs Fitment: 1986/GMC/K3500/Sierra Classic Standard Cab Pickup 2-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle~ Stock Springs Cannot Be Used^^1986/GMC/K3500/Sierra Classic Crew Cab Pickup 4-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle~ Stock Springs Cannot Be Used^^1986/GMC/K3500/Sierra Classic Cab & Chassis 4-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle~ Stock Springs Cannot Be Used^^1986/GMC/K3500/Sierra Classic Cab & Chassis 2-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Not Legal For ...