Best 383 valve cover gaskets to stop all the leaking

Yes, oil leaks are no fun.

I go to the extream and put a very thin layer of RTV Gasket Maker on the cylinder head valve cover rim, both sides of the Cork valve cover gasket, and the sealing surface of the valve covers.

Always take Brake Parts Cleaner to all sealing surfaces to remove any oil film so the RTV will stick proper.

Then 1 step further, Aviation Sealer (like High Tack) on the threads of the fastening bolts and put it all together.

Whatever little excess RTV that squeezes out, I carefully cut off after 1 hour of set up time.

Makes a nice clean, leak free job out of it.

Want to get it apart again in the future.

Spray a little bit of Brake Parts Cleaner all the way around the Valve Cover seam and wait 10 minutes for it to start loosening up the RTV. Then it easily comes apart, and if you do it right you can reuse the gasket again.