Each dome includes a dome locking system that prevents it from spinning when servicing spark plugs. Sold as one dome per package. NOTE: Not all cylinders are the same. Below are estimations of compression and many factors could change actual compression (port timing, squash area, deck height and piston selection). (NOTE: STOCK 701 Cylinder is 81mm). Compression: 82mm chamber 701 (61X) no porting at sea level. 35cc=185psi (must use 100+ octane fuel)
Trustpilot
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