Vehicle Fitment Information
Pistons & Top End
S&S 124" Big Bore Kits for M-Eight 107" Engines
$2,846.95
Bolt-on kit is the largest possible bore that does not require machining of the crankcases. 4 1/4" bore, 4.375" stroke. 11:1 forged pistons. All necessary gaskets and hardware required for installation included. Made in the U.S.A. NOTE: Not recommended for H-D FL Trike models.
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