We have a MATCHED used set of 16 Xceldye-ECR-11-0620B 300M Steel Retainers 6MM & 7MM Mini Top Valve Locks. They have only been used 2 NASCAR Xfinity Series races. You might want them for your engine.
16 Xceldyne 300M Steel Retainers & 6mm Mini Top Valve Locks Hendrick Motorsports
16 Xceldyne 300M Steel Retainers & 6 MM & 7MM Mini Top Valve Locks NASCAR
16 Xceldyne 300M Steel 1.300" Valve Spring Seat Locators NASCAR
16 PSI Polished Roller Cam Valve Springs #506@ 1.220" with 300M Steel Retainers
16 Endura Tech 1.290 Roller Valve Springs & 300M Steel Mini Top Lock Retainers
