This motor mount kit is for swapping a Mopar B/RB 361-440 big block into 1967-1972 Dodge/Plymouth A-Body cars originally equipped with a small block 273-360 V8. This kit includes: 1 pair of engine side mounts made out of thick black coated steel, rubber mount pads (isolators) and the hardware. 7/16"-14 Nylon Lock Nuts, 1/2" Lock washers, 7/16" flat washers, 1/2" flat washers, 7/16"-14 x 2" Bolts, 1/2"-13 Nuts Instructions are included. Please read them carefully before installation. Minor modifications may be be required including trimming of the driver side K-member for oil pump clearance. This kit is designed to work with small block K-members. If your car has a 6-cylinder K-member this part will not work, use #4697