️ Assembling an 8V71 Detroit Diesel Long Block – PART 1 | DIESELPRO.COM

In this video (Part 1 of 2), Diesel Pro Power takes you through the assembly of a Detroit Diesel 8V71 long block, step by step. This in-depth look covers the initial stages of the rebuild—from unpacking the cylinder kits to installing the crankshaft and preparing pistons for final fitment.

The Detroit Diesel 8V71 is a V8 two-stroke engine built for heavy-duty use in marine, industrial, construction, and transit applications. Known for its reliability, serviceability, and power, this engine remains a staple in diesel fleets worldwide. This long block assembly shows how expert rebuilders bring it back to life using professional tools and proven shop procedures.

You’ll get a detailed view of how cylinder liners are installed and honed, how the crankshaft is seated, and how pistons and connecting rods are assembled with precision, all using high-quality parts from Diesel Pro Power.

Note: This video is for demonstration purposes only and does not contain torque specs, safety procedures, or full installation instructions. For detailed rebuild procedures, always refer to the official Detroit Diesel service manual.

Timestamps:

• 0:14 – What is a long block?

• 0:48 – Unpacking Cylinder Kits

• 3:04 – Cleaning & Inspecting the Block

• 3:31 – Liner Fitting Process

• 17:25 – Honing the Cylinder Bore Holes

• 32:33 – Installing the Crankshaft

• 1:00:58 – Assembling the Pistons

• 1:08:04 – Connecting Rod Installation

• 1:13:06 – End Plate Being Installed

• 1:14:37 – Installing the Ring Sets on the Pistons

Want a Completed 8V71 Long Block?
If you’re looking for a ready-to-install solution, Diesel Pro Power offers fully rebuilt 8V71 long blocks, professionally assembled and tested.

https://dieselpro.com/detroit-diesel

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