Answers.Body: <p>This part was designed for use with the Technic Engine Cylinder <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=2850a" rel="noreferrer">2850a</a> (or  <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=2850b" rel="noreferrer">2850b</a>). Like this standard V8 engine:</p>
  <p><img src="https://i.sstatic.net/yrR27Di0.jpg" alt="V8 Engine" /><br />
  <em><a href="https://lego-engines.fandom.com/wiki/LEGO_Fake_Engines" rel="noreferrer">source</a></em></p>
  <p>The strange geometry is due to the piston shafts needing to align with the lower central pin hole.<br />
  I've made a diagram to (attempt to) illustrate this. The three red triangles are the same shape.</p>
  <p><img src="https://i.sstatic.net/82v1ocQT.png" alt="Diagram" /></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-09-11T13:15:35.507Z
Answers.Text: Adding to this, the top center hole and holes directly adjacent to the bottom center hole are spaced in such a way that they provide a solid 3-point mounting arrangement for each end of the assembly as a whole when used as part of a larger Technic build. For example, set 42125 (Ferrari 488 GTE AF CORSE #51) uses this mounting approach, with the connections on the front-end of the engine block being clearly visible in the back of the cockpit.
Answers.UserDisplayName: Austin Hemmelgarn
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-09-11T02:17:28.467Z
Answers.LastActivityDate: 2024-09-11T06:10:17.737Z
Answers.LastEditDate: 2024-09-11T06:10:17.737Z
Answers.UserDisplayName: Matthew Jensen
Body: <p>I never had this piece so I bought a couple to play with.</p>
  <p>I've found that the 3 dimensions I've labeled A are all the same, 3 units long. But lengths B and C don't connect with a standard beam. Knowing how much thought Lego puts into piece design, there must be some reason for the length, or a reason for the angle of the sides? It couldn't be arbitrary.</p>
  <p><img src="https://i.sstatic.net/JpmgCQB2.png" alt="" /></p>
  <p>More to the point, what is this piece for?</p>
  
Tags: <technic><piece-information><piece-usage>
Title: What is the rationale behind 32333 "Technic Pin Connector Block 1 x 5 x 3"?
UserDisplayName: Boann
ThreadText: # What is the rationale behind 32333 "Technic Pin Connector Block 1 x 5 x 3"?
  
  (Asked by: username_0 on 2024-09-11)
  
  I never had this piece so I bought a couple to play with.
  
  I've found that the 3 dimensions I've labeled A are all the same, 3 units long. But lengths B and C don't connect with a standard beam. Knowing how much thought Lego puts into piece design, there must be some reason for the length, or a reason for the angle of the sides? It couldn't be arbitrary.
  
  ![](https://i.sstatic.net/JpmgCQB2.png)
  
  More to the point, what is this piece for?
  
  **Tags:** technic, piece-information, piece-usage
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2024-09-11. Score: 21 | Accepted answer
  
  This part was designed for use with the Technic Engine Cylinder [2850a](https://www.bricklink.com/v2/catalog/catalogitem.page?P=2850a) (or [2850b](https://www.bricklink.com/v2/catalog/catalogitem.page?P=2850b)). Like this standard V8 engine:
  
  ![V8 Engine](https://i.sstatic.net/yrR27Di0.jpg)  
  *[source](https://lego-engines.fandom.com/wiki/LEGO_Fake_Engines)*
  
  The strange geometry is due to the piston shafts needing to align with the lower central pin hole.  
  I've made a diagram to (attempt to) illustrate this. The three red triangles are the same shape.
  
  ![Diagram](https://i.sstatic.net/82v1ocQT.png)
  
  > **Comments:**
  > **username_2**: Adding to this, the top center hole and holes directly adjacent to the bottom center hole are spaced in such a way that they provide a solid 3-point mounting arrangement for each end of the assembly as a whole when used as part of a larger Technic build. For example, set 42125 (Ferrari 488 GTE AF CORSE #51) uses this mounting approach, with the connections on the front-end of the engine block being clearly visible in the back of the cockpit.  
  
  ---
  
  