RLW

Yes. The exhaust valves are Manley Severe Duty which are one piece inconel.

Dave

Maybe you just typed it wrong but I think the Severe Dutys are Stainless Steel and the Extreme Duty Exhausts are Inconel.

Formula31 is correct. I installed the severe duty over the winter in two n/a engines on the advise of the engine gurus on this board. Thier consensus was inconnel is only necessary for blown engines. You may want to consider changing them out seamate if you are going that route for sure.

Good luck and keep an eye out for other chesepeake bay boaters. There are several that frequent this board.

BT

When I painted the engine for my 62 Corvette in 1996 I used PPG products. I used DP 90 epoxy primer followed by a couple of coats of Delstar arcrylic enamel with Delthane hardener. This combination has held up very well even around the exaust ports where it has a tendency to get a little warm....Roger 1