Seller notes

Fits 2003 Yamaha YFM660F Grizzly 4x4 Stroker Crankshaft Assembly RAD Powersports STROKER CRANKSHAFT YAMAHA RAD Powersports heavy duty drop-in stroker crankshafts. Not only do these stroker cranks bring about a heightened level of performance and increased displacement, but they do so without costly case machining, custom cams chains or spacer plates. Utilizes the engine's stock piston. All stroker crankshafts are sold complete and ready for installation with the original proven RAD Powersports c...

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