This is HPI's Nitro Star K4.6 .28 size Engine with the pull-start. This is a direct bolt in to any Savage monster truck, including the Savage X trucks. This would be a great upgrade for any monster truck that uses a standard big-block engine. This will get a stock Savage to about 45MPH, and with additional upgrades, higher speeds are easily attainable. This engine has a quite a bit more power than a stock Savage 25.
Features:
Includes:Nitro Star .28 (4.6) glow engineGlow Plug - HPI R5 cold plugFREE Dual Stage Air Filter INCLUDEDInstructions and parts break down
Specifications:Crankcase: 3.29" (83.5mm) (from rear of case to front without shaft)Height: 4.40" (111mm) (from bottom of case to the top of the head)Width: 1.81" (mount flange)Mount Holes: 1.42" (measured from center to center width)Mount holes: .82" (Between holes front and back)RPM: Max 39,000 RPMHorsepower: 2.9 @ 35,000 RPMCrankshaft diameter: 5mm (clutch bell area)Crankshaft diameter: 6.7mm (threaded portion)Crankshaft screw: 3 x 12mm caphead screwCapacity: 4.60cc (.28 ci)