The Axial .28 Spec 2S is Axial's replacement for the original Spec 1S engine. This version features a larger machined billet aluminum heat-sink head for increased surface area and cooling, adjusted timing for increased RPM (37,500 vs. 36,000), and a 9mm bore, three needle slide carburetor that includes 8.0 & 8.5mm venturis. This is a direct bolt-in replacement engine for any .21+ engine mount, and will accept most aftermarket shaft drive starting systems.
Features:
- Dual bushing aluminum connecting rod
- True ABC chrome sleeve construction for durability.
- Easy to tune carburetor
This product was added to our catalog on July 1, 2010