BLI 7237 N Scale Big Boy 4-8-8-4 Steam Loco Union Pacific ( Promontory Excursion) UP 4014 Paragon4 Truck This design allows for more

This design allows for more steering angle compared to stock

Extended rear body posts are required - NOT INCLUDED

Shaft 4WD drivetrain

Four-pack includes 1/2 ounce (15ml) each of Light & Medium Conductive Oils

BLI 7237 N Scale Big Boy 4-8-8-4 Steam Loco Union Pacific ( Promontory Excursion) UP 4014 Paragon4 Truck This design allows for moreBLI 7237 N Scale Big Boy 4 8 8 4 Steam Loco Union Pacific ( Promontory Excursion) UP 4014 Paragon4 Often called the largest steam loco ever made, and certainly a contender for the Worlds Most Famous Locomotive, the Big Boy was forged under some of the most strenuous demands ever placed on a locomotive. The UP Railroad needed a locomotive that could be used to pull a 3,600 ton train over Sherman Hill and the 1. 14% grade from Ogden to Wasatch, Utah