4x4 TUFF Home Custom 2 Stroke Mod Engines View Cart Drag Engine-complete with Jack Shaft assembly 130 Lbs. 420 HP (on alcohol) Less Pipes & Fuel Injection 3 Cyl 1680cc 420hp@8000RPM (injected on alcohol) 3 cyl with jack shaft assy weighs only 135 lbs. *nitrous will add an additional 30% more power! G2. Triple 1680 cc - Complete Engine CTSME10$10,400.00