Quote Originally Posted by pat mccarthy
but i will not use the ARP thread sealer this stuff is not as good as teflon dope or aviation form-a-gasket
Dammit Pat, now you've scared me. When I built my last performance engine over 40 years ago, the choices were simpler. Permatex or plumbers dope. Non-hardening Permatex was the easy answer. I've used RTV on the various stockers I've rebuilt through the last 40 years, but I'm a lot more concerned with how I put my 355 SBC together. I had decided on ARP lube/sealer on the open holes because of the following. ARP is a conscientious company. I figure the friction coefficient on the sealer has to be very similar to their plain lube. Therefore, torque readings would be more consistant. Consistant torque readings should lead to the least likelyhood of head gasket failure.

You have put together a lot of serious engines and along with some others on this list, I respect your opinions very highly. Are your feelings about ARP sealer based on multiple problems? Have others had bad experiences with it? Inquiring minds want to know!

Art

I may be old, but I still remember the zipper goes in front.