The Holley Swap Essentials SE1-GMG-LSX-M is a Level 1 package for installing a GM Gen III/IV LS engine in a 1978-1988 Chevy Malibu, Monte Carlo, El Camino, Buick Regal, Olds Cutlass & Pontiac Grand Prix. 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 T56, T56 Magnum, TKX transmission applications.

Holley SE1-GMG-LSX-M Compatibility Notes:

• Installs a GM Gen III/IV LS engine with factory-style mounting in the 1978-1988 Chevy Malibu, Monte Carlo, El Camino, Buick Regal, Olds Cutlass & Pontiac Grand Prix chassis
• Configured for T56, T56 Magnum, TKX transmissions
• 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: 12643HKR, 12644HKR-1, 71221004HKR, 71221014HKR, 71223015HKR, 71223029HKR, 12647HKR
• Engine, transmission, wiring, fuel system and cooling components are sold separately