GM Parts 10168501 Camshaft Retainer Plate for Small Block Chevy ZZ3/ZZ4 Camshaft Retaining Plate - 3.294 in Bolt Center - Steel - Natural - GM ZZ3 / ZZ4 Engines - Small Block Chevy - Each Notes: Also Fits Gen 5 & 6 Big Blocks Does Not Come With Bolts 11561767 - Bolt