GM Performance Center Bolt to Side Bolt Valve Cover Adadpters
 

These are like new machined billet aluminum adadpters that will allow side bolt valve covers ( of which there is a very LARGE selection, and generally less expensive) to be installed on your LT-1 engine. These can be seen in the GM Performance Catalog, excellent condition and includes all mounting hardware and gaskets............$100 shipped to lower 48........Glenn