98sporty Member Mar 29, 2011 #1 Was lookin at my pistons and noticed that the part number on them 92-1569 and the S&S catalog shows the 1560 series are used in 111 engines and the 1550 series are for the 117. Is there a difference in the pistons?
Was lookin at my pistons and noticed that the part number on them 92-1569 and the S&S catalog shows the 1560 series are used in 111 engines and the 1550 series are for the 117. Is there a difference in the pistons?
Raywood The Pirate Staff member Calendar Participant Troop Supporter Mar 29, 2011 #2 Not sure but would guess it's just skirt clearance for the different strokes
