SPECIAL ENHANCEMENTS FOR EXCEPTIONAL PERFORMANCE!

Based on the popular O.S. .21VZ-B V-Spec, every upgrade to the .21VZ-B V-Spec Pro Modified engine is done in the U. S. by hand by a skilled technician - and all for the aspiring racer who wants a performance advantage over the competition running stock.

• The piston and liner are hand-selected and matched for a better fit
• 8 holes have been drilled into the cylinder head for lighter weight and better cooling
• A ceramic rear bearing greatly reduces friction
• The special coating on the crankshaft prevents wear and the crankshaft is precision-filled with silicone to increase air and fuel flow through the engine
• Tungsten weights in the crankshaft improve balance at higher rpms

SPECIFICATIONS
Displacement: .211 cu in (3.46 cc)
Bore: 0.654 in (16.6 mm)
Stroke: 0.63 in (16.0 mm)
Practical rpm range: 3,000-40,000
Output: 2.48 hp @ 33,000 rpm
Weight w/o muffler: 12.7 oz (360 g)
Includes: 21JS carburetor & 7 mm carb restrictor

                                              Retail
OSMG2067 21VZ-B V-Spec Pro Modified Engine   $629.99

Visit the O.S. Engines website at www.osengines.com

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