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Lego Trains for Large Scale Rails

By Ben Lake | February 14, 2023

Follow these instructions to build a Mack diesel from Lego parts

Lego Trains for Large Scale: green and white Lego diesel engine — Download instructions on how to build this large-scale Lego diesel. Photo and instructions by Ben Lake

In the Summer 2019 issue, Gary Raymond shares how he modified Lego trains to run on gauge-1 track. Here, Ben Lake has shown the steps to build a Mack diesel using Lego parts. Download the PDF below and share what you build with us!

2 thoughts on “Lego Trains for Large Scale Rails”

Dennis Wind says:

August 9, 2023 at 5:48 pm

I have a spare Mack engine that I would like to put this body on but the instructions are impossible to decipher, once downloaded and printed. I live next to Legoland in Winter Haven FL and already have two of the LGB Lego flatcars.
Is there a better set available? An actual parts list as well?
My email address is
Thank You…
Dennis…

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George Sarver says:

August 4, 2021 at 5:50 pm

Do you have a better picture of the parts needed or a name for each part? It is impossible to recreate what is needed to build the engine with what is shown.

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