Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • BATMAN™
    • BIONICLE
    • Building Set with People
    • Castle
    • Duplo
    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Pirates
    • Space
    • Star Wars
    • Technic
    • Train
    • Town
    • Universal Building Set
    • Western
    • More Sets
    • Misc
  • USEFUL LINKS
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Alternate Builds Small Builds Town Town Alternate Builds 

1665 – Back A

April 30, 2024April 30, 2024 Master Builder 4691 Views

From: 1665: Duel FX Racers
Name: TBD
Submitted by: TBD
Instructions

  • ← 1665: Duel FX Racers
  • 1665 – Back B →

You May Also Like

4702: The Final Challenge

August 8, 2024August 8, 2024 Master Builder

4704 – Back B

May 28, 2024May 30, 2024 Master Builder

6040 – Back D

October 8, 2023September 25, 2024 Master Builder

6077 – Back C

July 13, 2021July 13, 2021 Master Builder

6344 – Back C

October 8, 2024October 8, 2024 Master Builder

6274 – Back C

February 8, 2022February 21, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

6528: Sand Storm Racer
Official Sets Race Town Town Sets Very Small Builds 

6528: Sand Storm Racer

July 8, 2022July 8, 2022 Master Builder

Year Released: 1989BricklinkInstructions

6590: Vacation Camper
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6590: Vacation Camper

July 8, 2022July 8, 2022 Master Builder
7301 (1413, 7309, Kabaya: Life On Mars 4): Rover
Life on Mars Life on Mars Sets Official Sets Very Small Builds 

7301 (1413, 7309, Kabaya: Life On Mars 4): Rover

February 24, 2025February 25, 2025 Master Builder
4750: Draco’s Encounter with Buckbeak
Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Very Small Builds 

4750: Draco’s Encounter with Buckbeak

May 16, 2023May 16, 2023 Master Builder
1843-3: {Royal Knights Unknown}
Bonus/Value Pack Sets Castle Castle Sets Official Sets Royal Knights Small Builds 

1843-3: {Royal Knights Unknown}

September 8, 2023September 13, 2023 Master Builder
1978-2: Town Value Pack
Bonus/Value Pack Sets Bonus/Value Packs Official Sets Race Small Builds Town 

1978-2: Town Value Pack

October 10, 2024October 10, 2024 Master Builder
6086: Black Knight’s Castle
Black Knights Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets 

6086: Black Knight’s Castle

October 11, 2021July 29, 2023 Master Builder
6645: Street Sweeper
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6645: Street Sweeper

November 20, 2020November 20, 2020 Master Builder
1818: Aircraft and Ground Support Equipment and Vehicle
Airport Classic Town Medium Builds Official Sets Town Town Sets 

1818: Aircraft and Ground Support Equipment and Vehicle

April 7, 2025April 7, 2025 Master Builder
6368: Jet Airliner
Airport Classic Town Medium Builds Official Sets Town Town Sets 

6368: Jet Airliner

January 21, 2021January 21, 2021 Master Builder
6279: Skull Island
Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets 

6279: Skull Island

February 21, 2025February 21, 2025 Master Builder
7139: Ewok Attack
Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets 

7139: Ewok Attack

June 27, 2022February 24, 2023 Master Builder
6262: King Kahuka’s Throne
Islanders Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6262: King Kahuka’s Throne

June 1, 2022June 1, 2022 Master Builder
6361: Mobile Crane
Classic Town Construction Medium Builds Official Sets Town Town Sets 

6361: Mobile Crane

April 9, 2020April 9, 2020 Master Builder
1858: Droid Scout
Exploriens Exploriens Sets Official Sets Space Very Small Builds 

1858: Droid Scout

July 8, 2022July 8, 2022 Master Builder
6880: Surface Explorer
Classic Space Classic Space Sets Official Sets Small Builds Space 

6880: Surface Explorer

May 4, 2020May 4, 2020 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • BATMAN
  • Bionicle
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Train
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
  • New Instructions
  • New Official Sets
  • New Alternate Builds
  • Minifigs
  • Very Small Builds (<35 pcs)
  • Small Builds (<100 pcs)
  • Medium Builds (<200 pcs)
  • Large Builds (<400 pcs)
  • Extra Large Builds (>400 pcs)
  • How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.