O.S. 21XZ-B VII Off-Road Competition Buggy Engine
O.S. 21XZ-B VII Off-Road Competition Buggy Engine

O.S. 21XZ-B VII Off-Road Competition Buggy Engine

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Your Price: $309.99
Retail Price:$319.99
You Save:$10.00(3%)
Part Number: OSM12183
Availability: In Stock. Free Shipping.

The perfect balance between price and performance.

As competition-level buggy engines go, the 21XZ-B VII is a super value! By making it lighter, lower and cooling running, it exceeds the expectations of even pro racers — delivering power comparable to the Speed Spec II at a lower price. 1/8 scale drivers looking for a performance advantage will find it with the 21XZ-B VII powerhouse!

  • Performance that rivals that of the acclaimed Speed 21XZ-B Spec II
  • Shares the same piston, liner and con rod as the Speed version
  • Lightening holes in the cylinder head reduce overall weight
  • Other enhancements include a lower CG and improved cooling
  • A 22B2 single needle carb makes tuning a breeze
  • Optimized power band
  • Silicone filled crankshaft with tungsten counter weights
  • Blue anodized head
  • Incredible throttle response
  • 7mm carb reducer is included
Specification:
  • Displacement: .213 cu in (3.49 cc) 
  • Bore: .641 in (16.27 mm) 
  • Stroke: .661 in (16.8 mm) 
  • Practical RPM: 3,000-41,500 
  • Power Output: 2.7 hp @ 34,000 rpm 
  • Weight: 12.77 oz (362 g)
  • Includes: 2282 carburetor, 6 mm and 7 mm carb restrictors, P3 glow plug, exhaust seal and dust cap set. Requires: glow fuel, muffler, tuned pipe and manifold 

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