New from S&S are its P-Series motors, designed to give restorations both an authentically retro look, along with modern reliability, performance and upgradability. These new P-Series engines are available in three designs—1954-64 (also for 1948-53 with a tin primary), 1965-69 applications and, of course, and an alternator/generator version that fits 1970-99 frame styles. Each P-Series engine comes in three flavors—93 cu in, 93 cu in high-compression, and 103 cu in high-compression.
While not for restoration competition, the motors are an alternative to sourcing obsolete engine parts on otherwise vintage motorcycles.
(Click image to enlarge) www.sscycle.com