[RobMcQuarie]

Blaine,
A 460 valve cover shorter than 4" is a tall order. We stock all the Blue Thunder valve covers, so I grabbed a ruler and they are 3.5" at the top of the ribs already, without the spacer. I will be finishing up a customer's 530 stroker in the next few days, and I'll see if there is any way to mount the "Cobra" valve covers, with the roller rockers, without spacers. I've had to do it with the small block stuff for customers, and have come up with a few ideas. I'll let you know what I find toward the end of the week.

BTW-there are two versions of the valve cover spacers available-with and without an O-Ring. I recommend the O-ring version for a few dollars more. Much more effective as they seal against the head w/lock down studs.

We do have an all new, smooth cast, aluminum valve cover for the 460 that is awsome looking, but it is 5-1/2" tall, so is just barely shorter than the SVO die cast covers.
Rob