Skip Navigation Website Accessibility

Wiseco Yamaha XT/TT/SR500 9:1 3rd over 1.50 mm


If we do not have the full amount that you ordered of this item:    
Manufacturer #:4764M08850

Add to Cart

or call: (785) 263-1948
Please allow 7 working days for delivery
If item is out of stock please allow approximately 15 business days for procurement.
Shipment times may vary based on manufacturer availability. 
Displacement:  508cc
Bore - Standard:  87.00mm
Bore - Actual:  88.50mm
Bore - Oversize:  1.50mm
Stroke:  84.00mm
Compression Ratio - Actual:  9:1
Note:  Cylinder boring required