Includes a dome locking system that prevents it from spinning when servicing spark plugs.
Not all cylinders are the same and compression may vary.
82 mm domes (701) are intended for use with 81.00 mm to 83.50 mm piston size.
701cc COMPRESSION CHART:
82mm Chamber 701 (61X) No Porting @ Sea Level (NOTE: Stock 701 Cylinder is 81.00 mm)
29cc = 230psi*
31cc = 210psi*
33cc = 195psi*
35cc = 185psi*
37cc = 170psi
39cc = 160psi
(* = must use 100+ octane fuel)
NOTE: These are estimations only. Many factors could change actual compression (port timing, squish, deck height and piston selection).
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