No Closures, No reduced hours or limited availability. We are here fo you and your car. Orders go in and go out with reliable speed!


Datsun Roadster U20 Exhaust Seat rings (4)

Datsun Roadster U20 hardened Exhaust Seat rings

U20 premium quality exhaust Seat rings. Made of a superior alloy over the originals which are iron. Composition: 42.0% Nickel, 7.5 % moly, 12.0% chrome, 3.0% silicon, 2.10% carbon, 2.0% vanadium remaining % iron & other elements. Sold as a set of 4.

The O.D. of these seats are slightly larger than stock to, .003 to .004, to allow for the proper press fit into the cylinder head.