This is the Werks Racing B6-Pro .21 Off Road Racing Buggy Engine.

FEATURES: ABC cylinder construction, "A"luminum piston with a "B"rass liner
            that is "C"hrome plated
          Five port liner
          High-silicon aluminum alloy piston
          7075 T6 knife edge connecting rod
          Lightened and epoxy filled crankshaft
          Ceramic rear bearing
          Baclplate machined from billet aluminum
          2 needle slide valve carburetor with adjustable venturi
          CNC machined & lightened low GC cooling head
          Turbo head button

INCLUDES: Werks Racing B6-Pro .21 Off Road Racing Buggy Engine with #5 Turbo
            Glow Plug, silicone exhaust gasket and parts list

REQUIRES: Fuel: 10-30% nitro content, 20% recommended for break-in
          Exhaust System: Depending on vehicle
          Glow starter, fuel tubing and track equipment

SPECS:    Displacement: .21 cu in (3.4cc)
          Stroke: 0.649" (16.50mm)
          Bore: 0.64" (16.30mm)
          RPM Range: 3,000 to 41,000
          Output: 2.7ps at 35,000 rpm
          Mounting Hole Centers Same Side: 0.83" (21mm)
          Mounting Hole Centers Opposite Side: 1.5" (37.5mm)
          Crankcase Width below Mounting Tabs: 1.2" (31mm)
          Width of Mounting Tabs: 1.7" (44.4mm)
          Height from Mounting Tabs to top of Cylinder Head: 3.7" (94mm)
          Cylinder Head Diameter at Top: 2.3" (59.9mm)
          Length from Backplate to Front Bearing: 2.5" (63.3mm)
          Length from Backplate to End of Crankshaft: 3.7" (93.2mm)

                                                                   jxs 08/05/11
                                                                         ir/jxs