wildbob is correct the biggest bore you can go is 58.5 without machining the case. I wouldn't recommend going past 61mm bore on the stock case because the cylinder walls get way to thin, making the engine very unreliable. A head and cam combo will wake the buggy up. Once you do that then a big bore with a stroker crank it turns into a whole new buggy.
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Hammer head Single seater know as herbie
under construction
Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust.
Blade Single Seater Restore
welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank.
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