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The BOM racing 640, 840,870 OR 1020 big bore KIT-CALL before ordering

$1,049.00

These use OEM jugs and cp pistons and can be used with power adders.  Comes with head and base gaskets!

OEM CORES ARE REQUIRED! YOU WILL NEED TO ADD THE CYLINDER CORE TO THE CART UNLESS YOU SEND YOUR CYLINDERS FIRST.


BASE ENGINE

500CC-640BBK

800CC-840BBK

850CC-870BBK

1000CC-1020BBK