S&S CYCLE 129" Power Package Engine Performance Kit — 129", 4.320" bore, 4.375" stroke, Black – 18-23 Softail, 17-23 Touring, 22-23 CVO
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Complete kit to convert a 107" oil-cooled M8 into a 129" performance engine; includes matched cam, cam plate, oil pump, MLS head gaskets and serviceable passage plugs.