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Big Boy
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About this creation
The idea

The biggest steam engine in the world the Big Boy was allready build by serveral LEGO fans. But none of them used the old spoked wheels for the drive wheels and the large 1/4-panels to model the boiler. My Big Boy should fit in with my other 8-wide train models. First a stand alone model was planed, I didn't thought about going through curves with a 4-8-8-4 [2' D, D 2'] wheel arrangement. The tender in addition has got 7 axles close together.

Due to several request I've recieved by email and as feedback: There are no building instructions nor a part list for the Big Boy LEGO model available.

Enlarge image
   All overview with water tank and engine shed

Enlarge image
   The front end of the huge boiler.

Enlarge image
   Yes, it fit into the shed exactly.


  January 18, 2015
Is it possible to turn standard Lego driving wheels into 9-volt wheels?
Holger Matthes
Tommy Gum
  December 19, 2010
That is prriitttyy sweet
Holger Matthes
 I like it 
Alex McKenna
  July 26, 2009
The fact that people have been raving about this model for 6 years really shows how good it is. There is nothing more one can say. Du hast echt unglaubliche Arbeit geleistet!!! It would be great if you could tell me what you think of my BR50.
 I like it 
  July 25, 2009
This is the biggest and one of the best Big Boys on the pages. Having seen many of them for real(and even working), I can say this has every little detail possible. Plus, the minifig scale is perfect.
 I like it 
  July 22, 2009
Cool the big boy is my favorite train nice job (P.S I hate to tell the person who said the yellowstone is the largest hate to tell you this but the yellow stone isn't the biggest train the big boy still is the big boy is a 4-8-8-4 and the yellowstone is a 2-8-8-4 this difference makes their size different and also I've seen the model trains of them and in every scale and the big boy is always the largest of them)
Holger Matthes
 I like it 
Thomas N
  June 20, 2009
This is awesome, I remember seeing the big boy in Green Bay, and this looks eactly like it! Excellent work! ~T
Holger Matthes
 I like it 
  May 15, 2009
AWESOME!!!I am a big fan of HoMa.
 I like it 
  March 24, 2009
Excellent your work!!! It's INCREDIBLE the train can fit in the shed. REALLY GOOD!!! Vote: "A"
 I like it 
  January 11, 2009
Great model! Excellent details, very professional.
 I like it 
  October 27, 2008
The Big Boy IS NOT the biggest engine in the world, the YellowStone is, it was 4" longer than the BigBoy. ~Martin
 I like it 
  May 17, 2008
Well, that's cute. Weren't those built for hauling things over mountain passes?
 I like it 
  March 26, 2008
Great Train. But can it go around corners.
 I like it 
  July 1, 2007
Definitly one of the better Big Boy models. The cylinder, rod, and boiler arrangments are genius. By the way, how can you get those white wheels?
 I like it 
  January 13, 2005
Amazing locomotive. The fact that it can negotiate those sharp curves is suprising. Now all you need to do is to convince the Lego company to make and sell 3 foot radius curved track!
 I like it 
  December 16, 2004
Truely amazing!!
 I like it 
  December 21, 2003
AWSOME, but not technicaly the biggest Stema Engine ever built. Yes it is known as that, but the Duluth, Messabi, & Iron Range had a 2-8-8-4 that had a larger boiler, 4 feet more face plate to face plate lenght & more tractive effort then a Big Boy... ;-) But still this is a great model of the Big Boy!! Josh
By Holger Matthes
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Added May 17, 2003

LEGO models my own creation MOCpages toys shop Big BoyEngines

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