Double ended cylinder head bolt for building a new cylinder or replacing an old head bolt. Also known as M6X112 Double Ended Bolt.
This bolt attaches the Cylinder Head (cover) to the Cylinder Body (case).
The 6mm size works with 48cc motor builds and older 66cc Black Stallion and Jet motors.
The 8mm size is for 66cc SkyHawk bike motors and older raw engines.
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Our gasoline operated products are NOT compliant with Environmental Protection Agency ( E.P.A. ) or California Air Resources Board (C.A.R.B) for the use on/off Public roads. Upon purchase, the buyer agrees to use products for racing (closed-course competition) only and NOT for on/off public roads.