Don't let the smaller displacement fool you, this 400" set up manifest itself as a multiple record-setting base for your build. By taking the stroke of the crank down to 3.750", you yield the advantage of a more rigid piece with conjunct benefits. The cranks overlap is reduced and piston speed is slowed, allowing for a more stable unit at high RPMs and substantial boost levels for a long duration. Cylinder bores are taken 4.125" and feature a much thicker ring land, creating a more rugged and resilient part that is able to withstand high heat.
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