Olson's Gaskets is wanting to produce copper sandwich style manifold gaskets for the Auburn 8 cylinder motor (Lycoming model G). We need help in finding an original (used or unused) sample for the center gasket. The picture below is an example of the gasket we are looking for, but it is not an appropriate sample as it is second generation. The Auburn part # we are looking for is A90310 or A90469. These part numbers are equivalent Victor #12072K, or 18042K, Fitzgerald number 5317MK, or McCord number S2809. If you have an original sample that you are willing to loan or sell (even a good used original sample will work) please contact Richard Olson at 360-871-1207, or via email richard@olsonsgaskets.com