Complete stock dual port cylinder heads assembled with 35.5 x 32mm stainless steel valves, stock valve springs, steel retainers, hardened keepers, rocker, exhaust and intake studs. Available in 14mm spark plugs. 85.5mm Bore. Stock Dual Port Cylinder Head, SCORE Approved. Chamber Volume 51cc, Intake Port Volume 53cc, Exhaust Port Volume 56.5cc. Uses 14mm 1/2" Spark Plugs. Sold Each!
Sold Each!
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