After reading what I could understand (newbie at 63 y.o.) I am looking at changing the valve covers on my T Bucket to solve the oil leaking out of the valve cover caps. As someone indicated, the covers have no markings so they might be the cheap Chinese brand. I just bought this hot rod. It has a 327 bored out to 333, Sportsman II heads with roller rockers and spring loaded locker bars. The previous owner installed a Weiand 2x4 high rise tunnel ram intake with 2 Holley 450's. He estimated around 425 hp. I only loaded this with information because I don't know enough to know what info you need to guide me.