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This is the Traxxas 2.5R Racing Engine with IPS (Integrated Pilot Shaft) and Pull-Start. For use in all Traxxas vehicles that use the TRX 2.5 engine. This engine is a .15 engine. The 2.5 refers to a measurement of Cubic centimeter displacement compared to Cubic Inch displacement (.15).
Displacement:0.15 cu in (2.49cc)
Crankshaft Thread: 5mm (.197")
On-Center Mounting Holes, Front to Rear: 11mm (.433")
On-Center Mounting Holes, Side to Side: 31.4mm (1.24")
Back of engine (recoil) to front of drive washer: 73.2mm (2.88")
Height: 97.3mm (3.83")
Inner Exhaust Port Diameter: 9.9mm (.392")
Outer Exhaust Port Diameter: 13.0mm (.512")
Note: The TRX 2.5R (REVO) engine has a different cylinder head, crankcase,and sleeve than the TRX 2.5. All of the upgrade parts from the TRX 2.5R will fit on the TRX2.5
This product is expected to become available for purchase on Sunday, October 17, 2021