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S&S Forged Pistons 3-5/8” Big Bore Evo Stock Heads 4-1/4” and 4-1/2” Stroke

S&S Forged Pistons 3-5/8” Big Bore Evo Stock Heads 4-1/4” and 4-1/2” Stroke

Forged big bore pistons by S&S for 4-1/4" and 4-1/2” stroke flywheels (88 cui./93 cui.) with stock 8-1/2" diameter. Sold as complete kits with front and rear piston, rings, bolts and clips.

  • for stock cylinder heads
  • fits Evolution Big Twins
  • aluminum
  • stroke: 4-1/4 ” / 4-1/2 ”
  • nominal bore: 3-5/8 ”

Have any questions?

Our service team will be glad to help out: Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: service@wwag.com