Melling stocks a full line of camshafts in 13 distribution centers across the USA and Canada. Applications include domestic car & light truck, import, and High Performance for both street, strip, and circle track racing. Fits the following applications GMC Truck, Chevy Truck, Isuzu Truck, Cadillac Truck, and Buick Truck/ Engines are as follows - 294(4.8L), 364(6.0L), and 325(5.3L). Please call for details or specifics if you have any questions concerning your engine application.