Stor-Em
GM / Chevrolet LS Engine 
Exhaust Port Block Off Set.
4 plates as shown in photos enough covers for 1 engine.
Works Great for Engine Storage, Or for When Painting Assembled Engine.
Made With Pride in Cochranton, Pennsylvania U.S.A.

Some Information about us.
This Product Designed and Manufactured by MediceMfg in Cochranton, Pennsylvania USA !