DEI Boom Mat - 12 x 12-1/2 in Sheet - 1/2 in Thick - Black/Silver (Pair) H759C01XL 500" OD valve springs

500" OD valve springs

Sets also have multi-keyway crank sprockets

10:1 to 20:1 AFR range for gasoline applications

while glycerin-filled gauges feature a stainless steel housing helping to dampen the effect of pulsation and pressure spikes of the gauge needle

DEI Boom Mat - 12 x 12-1/2 in Sheet - 1/2 in Thick - Black/Silver (Pair) H759C01XL 500" OD valve springsBoom Mat Damping Material solves the problem of noise, vibrations, squeaks and rattles that come from roads, stereos, engines & more. Boom Mat Vibration Damping Material is a premium quality damping material providing extreme noise damping for the most demanding commercial and sound competition applications. Interior panels vibrate and generate noise. Boom Mat stops that noise by trapping it between our thick, 4 mil aluminum stiffening top skin and