Percy 66032 Seal-4-Good Flange Gasket

Perfect replacement for blown composite fel-pro gaskets. The original gaskets were so brittle tha disintegrated during removal. These soft aluminum gaskets fit right in and sealed up immediately. I would mention to take care in fitting and clearing the gaskets on a stock head LS1. On the passenger side rear of the head, also the tightest spot I could only gain a clear view from under the car, the was a bolt on the side and I had to bend the extended tab end of the gasket I. Order to clear this bolt and properly position the gasket. It was easy once I could view the cause of the issue.

Nice Gasket, although matieral used not so good. Not what I expected but works good. Gasket would work good for manafold not so good for headers.

if you have hedders or are thinking about installing some these are a must have the best i have ever used.I have tried several and they do not hold up.When i used percy what a difference they have held up to high RPM HIGH HEAT and have not yet had one blow AWSOME try it for yourself its worth the money by far hands down.

I was having problems with cheaper paper gaskets blowing out. Installed these and heard a difference immediately!

These worked when nothing else would. The good thing about this product is u can use over and over again.

Used on my 2002 LS1 C5 Corvette for my new Headers - these gaskets are thicker and better at sealing exhaust leaks.

Been using these for two years now on my 09 Silverado without any issues whatsoever.

Easy to install on my 2001 Corvette. They work well so far.