These nearly indestructible polyurethane engine mounts are strong like solid metal mounts but will not transmit as much vibration and noise. Designed to limit unwanted movement, control torque and transmit as much power as possible to the wheels where it belongs. The heavy duty construction of these mounts prevents damaging engine movement and reduces the possibility of breakage. Polyurethane is resistant to oil and chemicals and will not deteriorate like rubber mounts. Molded in black with a corrosion resistant plated finish. (Requires the use of 1966-70 frame brackets. Will not fit Factory Type Hi-Po Exhaust Manifolds.)