75Vette
Member
There was no Model 29-2E, the Endurance Package began with the Model 29-3E and Model 629-1E. The Model 29-5 and 629-3 introduced the longer cylinder stop notches and this was the last of the endurance upgrades to the N-frame 44 Magnums.
Small correction. The endurance package started with the 629-2E, not the 629-1.