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O.S. Engines

12XZ Speed Tuned Spec II

A proven powerhouse – redesigned!

O.S. 12XZ Speed Tuned Spec II
stock#
LXAAAV
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A proven powerhouse has been redesigned with the O.S. 12XZ Speed Tuned Spec II, forever raising the bar for 1/10 scale racing engines. The enhancements – including holes machined into the aluminum outer head for reduced weight and tungsten weights for better balance – may seem subtle, but they make all the difference when it comes to taking the checkered flag.

Specifications
Displacement: 0.211 cu in (3.46 cc) Bore: 0.543 in (13.8 mm) Stroke: 0.55 in (14.0 mm) Practical rpm range: 5,000-44,000 Output: 1.75 hp @ 35,000 rpm Weight (w/o muffler): 8.1 oz (230 g)



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