X-Act Pro 5 .21 5-port nitro engine
New from X-Act is the Pro 5 3.5cc nitro buggy engine. The Pro 5 uses the same high quality carburettor as the Sportive but offers enhanced power thanks to a new crankcase and a 5-port piston and liner set with lightened piston for higher RPM. Greater internal porting enhances fuel flow and the engine also comes with a coated crankshaft. To top it all off the Pro 5 comes with a lightweight, drilled, CNC machined head as well and a turbo plug combustion camber insert. All piston and liner sets are hand matched and offer a tight initial fit but long life after the run in process and all engines from the range are hand assembled in the UK to ensure correct fitment and parts quality verification.
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