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ww38x - ADA 44mm Big-Bore Headkit with Boost Port for '47cc' Pocketbike

$180.00 $105.00 On Sale!

Complete ADA big-bore billet headkit for the case reed inducted engine found on '47cc' chinese import pocketbikes. Kit includes 44mm bore machined cylinder with 3D machined boost port, billet head shell, thin ring race piston with boost port window, choice of compression dome, gaskets, spark plug, 10mm pin, & all hardware. Offers substantially improved cooling, acceleration, and top speed, and looks great! Note: higher compression domes offer more power, but require higher octane fuel.
13:1 dome requires 92 octane or higher.
15:1 dome requires 105 octane or higher.
17:1 dome requires 116 octane or alcohol.

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