pin locks L-2291

[BigBlueIron]

Using a set of lightly used L-2291 pistons on a new build. (cleaning out under the bench) Figured I would get some new pin locks and unfortunately it appears the original LR-N540098 locks are no longer available nor can i find old stock. Anyone have a recommendation on what I can use in place of?

[winr1]

Some of my true arcs

Speed Pro 390 cast .. never installed
1.101 -- 1.105
..................................

Forged 390 piston.. installed, not run
1.080
.052
...........................

Factory 360 used

1.066 -- 1.075
.050 -- .051
......................

391 FT.. used
1.075  -- 1.082
.052 -- .053

........................

McMaster-Carr


https://www.mcmaster.com/retaining-rings/internal-retaining-rings-6/

                                                 
                                                  O.D.        Thick

1 1/16"   1.13"   0.056"   1.18"   0.05"   Rockwell C40   7,560   Magnetic   ASME B18.27.1   25   99142A470   7.10



Ricky.