Reply to "Valve cover emblems & now extensions (11/24) update"

I’ve wondered about the best method for doing this as well Steve and I think when I do mine I’ll be looking at some of the industrial (not the store grade stuff) epoxies. Mounting the plates to the valve covers when they are off the car should avoid too much of a mess. I plan to roughen the VC surface to improve adhesion. I don't know if the epoxy would work but I'm not confident that silicone would work based on my past experiences with it on other things.

Unfortunately the backs of the roughly cast plates and the embossed Ford valve covers do not provide the ideal flat, smooth surfaces that a foam-tape would need to work effectively. I think also the oil and heat present in the engine bay might eventually work away at the tape edges unless the parts were both machined flat and mated smoothly. Then I’d put money on the 3M VHB outlasting most other solutions.