Up for sale is a corner to crossover gasket for a PCM ZR409 / ZR450 engine. The part number for the gasket is RM0299. The outside diameter is 4 3/4 inches and the inside diameter is 2 1/2 inches. These gaskets are sold 2 to a set so you will receive 2 gaskets.  We have these made to the same strict tolerances as the original equipment.  These are high quality American made gaskets. We accept cash upon local pick up, credit cards and Paypal. Check out my other items!