GT33 with wrap around exhaust

(1 customer review)


GT-33 is in a class of its own.Like the GT22 it has the rear mounted Walbro carb with reed valve induction and almost bullet proof CDI ignition. It has the muscle to swing larger props, and it stands out for many other reasons, too. The GT-33 runs more quietly than comparable engines while exceeding their output, Once again O.S. has produced a gas powerhouse for the serious pilot!



Displacement:32.98cc (
Bore:36mm (1.417″)
Stroke:32.4mm (1.276″)
Practical RPM: 1,800 – 8,000
Output: 3.9PS @ 9,000rpm
Weight: 1120g (39.51ozs) Complete 980g (34.57ozs) W/O Silencer

Find the dimensions and parts view here: GT33 Dimensions

1 review for GT33 with wrap around exhaust

  1. John Grosvalds (verified owner)

    I have 3 OS gas engines now, the 30 and 40cc four strokes, this is my first OS 2 stroke gasser. Really pleased with this engine, turns a 18×8 Falcon Beechwood at 8000rpm straight out of the box. Pick up is super smooth and the idle is coming down nicely. First class product and first class service (as usual) from Just Engines.

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