Another great find! The Magnesium Center-Lube Chain-Box Housing Covers as used on the 1973 and 1974 Porsche 911 RSR. Thank you Cory Jump!

You can visit Cory's website at Planet 9 Eleven for more Porsche parts as well as some very rare racing parts that he makes available from time to time. Look here http://www.planet911.com/