Package includes: Truck Stage 4 V2 Camshaft. 560 LS6 Beehive Springs 2001-Up LS Hat Valve Seals, Set of 16 Fitment: For 99-13 GM Truck Applications CAMSHAFT - GEN 3/4 TRUCK - STAGE 4 - V2 - 32430090 Specs: 224/230.