Consists of engine block, crankshaft, connecting rods, pistons, piston rings, cylinder head assemblies (including valve train components), lifters, camshaft, timing gears and chain, front cover, rear cover, harmonic balancer, oil pump, oil pan and valve covers, unless otherwise specified.
RPO - LR4
2005 - 2007 Chevrolet Pickup (CK1)
2005 - 2007 GMC Pickup (CK1)
2005 - 2007 Chevrolet Tahoe (CK1)
2005 - 2007 GMC Suburban (CK1)
2005 - 2007 Chevrolet Express (G2,3)
2005 - 2007 GMC Savana (G2,3)
Notes: Manual transmission applications will require procurement of a new clutch pilot bearing. If used on 2007 applications, transfer the oil pan from the original engine or procure a new oil pan and gasket from GM Parts.