Replacement stock mount for most GM engines. Mount bolts to chassis. Fits: ’70-88 Monte Carlo, ’70-87 El Camino, ’71-92 Camaro, ’77-87 Regal, ’70-73 Chevelle, ’73-87 Cutlass, ’74-83 Malibu, ’70-79 Nova, ’70-85 Impala, ’70-95 Corvette.