NITRO STAR F4.6 ENGINE WITH PULLSTART
The F4.6 is the powerplant responsible for the immense speeds and raw torque in the Savage X 4.6, and now it's available to fit into any Savage or big-block monster truck! It features all the race tun

NITRO STAR K4.6 ENGINE WITH PULLSTART
Available from HPI Racing, the Nitro Star K4.6 engine, capable of propelling the Savage monster truck to speeds of 44 mph and wheelie off the line. The K4.6 is a 4.6cc (.28 cubic inch) big block engin

NITRO STAR K4.6 HO ENGINE WITH PULLSTART
The HPI Nitro Star K4.6 HO engine is the high output (HO) version of the well known HPI Nitro Star K4.6 engine (#15201). The new high output version is optimized for higher revs and the use on track