Wow. Massive, enormous, incredible... words don't even begin to describe how amazed I am. Wow!

My favorite train since i was 2. Love it. cant help it looking silly on curves, it is a big boy after all.

Massive engine with great detail. Nice work!

Amazing! I also saw the Big Boy in St. Louis. It's a monster. I guess you saw it at the Museum of Transportation?

AWESOME CREATION!

Also another thing. I work at the Museum with the 4006 in St. Louis. Museum of Transportation. I run Live steam G gauge trains in the auto building. As well as O gauge and electric G gauge (Thomas the Tank for the kids).

I'd pay at least $500. That great detailed locomotive is worth that much. Don't use power functions. Convert back to 9V. I did this with a custom steamer. First had 9V then power functions. It was very light weight. The locomotive refused to go on straight track. It preferred curves. When I put the 9V back in, it worked so much better. Plus w/ power functions it only ran backwards. :P After 9V motors went back in it fell off the track and broke into about a million pieces when it hit the concrete floor. Never put it back together. The loco was a 2-8-8-8-4. I haven't built a custom Lego train since. This happened 2 months ago.

Love it! Do you plan on making instructions or a list of the pieces? Thanks!

id pay $200 for it. 5/5

Big, and packed with details.

Wow, having seen one of these in person, I appreciate the perfection of this. Nice details and scaling.

Wowie, it's darn big! The Big Boys are big, too!

Very nice! I live near Omaha and work in Omaha and I get to see a new Union Pacific Train, and the Big Boy sitting on the side of a hill when I cross the bridge into Omaha, and this engine looks just like it!

WOW ... that is Amazing ! ... i'm especially impressed by it being able to go around that curve !!!

Amazing....

Thanks! I'm actually rebuilding it to run Power Functions now, so the tile boiler (which I also really liked) is gone, in favor of 3x1 curve slopes. The boiler is so big it is able to fit 2 XL motors, the IR receiver and the battery with ease. The tile boiler will live on in my UP 9000, though, where the PF stuff is in the tender. The windows are slid into the rails on the 1x8 plates with door rail above and below the windows.

Great looking engine!!! I've seen some newer builders steel some of your techniques, but I love the driver action with plates and tiles and love the boiler built from tiles. That makes the model cheaper to build and still looks great. Great job. P.S. How are the 3 cab windows attached??

cool this is my favorite train I have it in n scale and I made one on LBP if it were for sale I would buy it

I love it! I am planning on getting into lego trains and i think im going to build a BIG locomotive for my track (when i get it), but i was hoping could you share those pictures? Oh, and im still confused on how you get the boiler looking so round...

I LOVE THIS. If i were you, i would make a video of it running on track and post it along with it, that way we can all see it run. It would be wonderful.

Just absolutely amazing. I am speechless.

truly amazing build. and the fact that it can take the curves even more amazing. i cant imgagine the time you have into this.

How did you do that?

The first time i see this one. I have always admired the Big Boys, truly amazing steam engines. You have done a really good job on this one, a classic!

Let's just say all that gave me a bunch of headaches. Getting the locomotive to not only go around curves, bt be loose enough so that the 9v motors can do it without the train stopping (especially at low speeds) took a lot of time.

You make me jealous. I tried to make one. First, I didn't have enough wheels so it was changed to the Challenger. Then, I ran out of pieces so it wasn't long. I couldn't put pistons. Then I tried to put pistons. It worked, but it didn't agree with the curves on the tracks. So now I really wonder how you made that.

A great representation of a highly complex machine. Union Pacific was the ONLY railroad to run this type of locomotive, Alco building 25 of them. Other roads may have called some of their larger locomotives "big boy" but UP had the only "BIG BOY".

Amazing, I can't believe I didn't see this before, great work.

Awesome! You should build more engines!

Sorry,i´ve forgotten to rate. exactly 5 :-)

Dude. One question... Can it go around corners?

Wow... I just saw this on Brickshelf, and I feel that the title of best Lego Big Boy belongs to you. This is truly and extraordinary model. Keep up the good work!

I studied this locomotive for built in 9 studs wide ... but I returned to my first love 141R "Mikado". I have only one thing to say very good job! I particularly love your design for the pistons and details from the front.

I'm waiting for more pics, but I can already say that is the most awesome train I've seen here on MOCpage (with the one by Garth Danielson). Great !