Hardened Multi Groove Locks

351 Cleveland Four Groove Valve Locks

Most 351C engines using stock valves

Order a new set of multi groove hardened locks for your 351 Cleveland.

Purchase comes with 32 half's which makes 16 lock pairs, enough for one 351C engine.

These also work on early 351/400M engines but be aware many 351/400M engines use multi groove on eight valves and single groove locks on the remaining eight valves.

99.9% of Cleveland engines came with multi groove valves but be sure that's what you have because as an upgrade, some have been upgraded to single groove valves & retainers so please check in advance.