This item earns up to 350 Customer Rewards Points! In Stock! Free Shipping Eligible! (See Details) Wish List! Buy Now!

This is the OS VZ-B V-Spec "Limited Edition" Competition .21 Buggy Engine. This engine marks the final production run of the classic .21 VZ-B V-Spec, with a total of 300 pieces! With four IFMAR World titles and countless national and regional championships to its name, the .21 VZ-B V-Spec is considered by many to be one of the greatest .21 size engines of all time – and for good reason! To commemorate this, the V-Spec Limited will be topped off with a specially modified cooling head from the Speed II World Championship engine that features sixteen machined holes to reduce weight and increase the surface area for more efficient cooling. The head is anodized in a stunning gold finish that is guaranteed to stand out from the competition on and off the track. The top of the head is engraved with custom graphics to signify all four IFMAR World Championships that have been obtained by O.S. Engines and each engine case is stamped with a unique identification number that will let you know the point at which your engine was produced during the final production run.

Features:

• Features a hardened chrome-plated 3-port cylinder liner with three intake ports and one exhaust port for high durability and long life.
• A machined billet aluminum piston with a pair of parallel rings that trap fuel oils for excellent lubricating properties between the piston and sleeve is part of this engine.
• Cutouts in the side of the piston lighten its overall weight making it easier for the rod and crankshaft to produce higher RPM’s.
• The slide valve 21J carburetor with 8mm and 9mm carb restrictors allows quick and easy tuning to specific race conditions
• Carburetor offers four separate adjustment: High Speed, Mid-Speed, Low-Speed and Throttle-Stop.
• The SG-style crankshaft in the V-Spec is constructed from hardened steel and machined to perfection. The counter weight is angled for the purpose of lightening it while the fuel chamber’s exit point is chamfered to provide a smooth path for fuel and air mixture.
• The connecting rod sides use a knife-edged design to reduce drag and weight which increases horsepower.