Originally Posted by JOE SI

Recently is bought a keep on .12, and on the head it says 12-3L.
I know it stands for long stroke.
I have also seen 12-3LS, does that mean short stroke?
And what are the advantages of long over short stroke and visa versa? If any.
Long stroke=more torque
Short= more rpm
That's what I read somewhere, can anyone confirm?