ORIGINAL: jerzdvt
So recommendations for a first engine that will be a good second/third as well:
Magnum .46
Super Tigre .45
Super Tigre .51
OS .46LA (what I got by accident)
All good. The ST 45 is now an ABC engine. It does not need the break-in time of the .51, however the .51 is a super sport engine and its reliability makes it good for more than sport.
The ST 45 and 51 are simply excellent choices for most anything one could want in the under-.60 size. The ST. 40-45-& 51 all have the same mounting spaces so easy to fit any model of that size range.
Don't confuse the current 45ABC with the OLD ST .46 which was simply a "stroked" 40.
Good luck.