fastdave..i'm from dallas area. Check with a company in lewisville called Lone Star Upholstery. He did my friends boat and did a great job. Good price and quality material. My 75 taylor has a 455 in it..The 455 olds motor has narrow valve covers..454 chevy has valve covers about 6" wide. If you still can't tell difference pull the covers and olds 455 has rocker arms that torque down instead of adjusting like on a chevy..Where you from in Tx? Heard about a jetboat get together at ray roberts lake aug. 26th brazos