The Holley Swap Essentials SE1-C106772-LSX-A2 is a Level 1 package for installing a GM Gen III/IV LS engine in a 1967-1972 Chevy C10 & GMC C1500 Pickup w/Narrow Frame Rails. Instead of sourcing mounts one piece at a time, the kit groups components that were engineered to work together, which cuts down on test-fitting and mismatched parts during the swap. It is configured for 4L60E, TH350, 6L80E, 700R4 transmission applications.

Holley SE1-C106772-LSX-A2 Compatibility Notes:

• Installs a GM Gen III/IV LS engine with factory-style mounting in the 1967-1972 Chevy C10 & GMC C1500 Pickup w/Narrow Frame Rails chassis
• Configured for 4L60E, TH350, 6L80E, 700R4 transmissions
• Built for trucks with narrow frame rails
• Mount geometry was laid out in CAD to set driveline angles that reduce vibration
• Black polyurethane mount inserts resist twisting better than OEM-style rubber inserts
• Mount design leaves room to route a dual exhaust system up to 3 in. in diameter
• Kit component part numbers: BHS511, 71221018HKR, 71221016HKR, 71223015HKR, 71223029HKR, 71222024HKR-2
• Engine, transmission, wiring, fuel system and cooling components are sold separately