Kit includes: 1x Rod Bearing Set (Standard) 91410314100, 1x Main Bearing Set (Standard) 91110190200, 6x Piston Ring Sets 91110393900, 12x Valve Guides (Standard) 93010432100, 1x Sump Gasket Set (Lower) 91110090705, 1x Head Gasket Set (Upper) 91110090703, 1x 911 Chain Rail Brown 91110522205, 5x 911 Chain Rails Black 91110522206, 2x Timing Chains - Endless 99310552900, 2x Intermediate Shaft Bearings - Large 99610113780, 2x Intermediate Shaft Bearings - Small 99610143570. For Engines From # 6450389, 6550023