Long Blocks & Short Blocks

Is your engine worn out, or does your project need to be built on a new foundation? Here you'll find complete long blocks and short blocks from Industrial Injection for Dodge Cummins and Chevrolet Duramax in versions from Stock to Race Performance.

Long block or short block?

A short block typically consists of the block, crankshaft, connecting rods and pistons, while a long block also has cylinder heads fitted. Product names marked No Heads indicate that the cylinder heads are not included. A short block can be the right choice if your own cylinder heads are in good condition or are to be upgraded separately. A long block can save work when the entire engine needs to be renewed. Both types are part of our complete engine assemblies.

How to choose the right version

At Industrial Injection, the versions range from Stock and Premium Stock Plus to Performance and Race Performance. Consider in particular:

• Engine code and model year: e.g. 00-04 Chevrolet LB7 Duramax, 07.5-12 Chevrolet LMM Duramax, 03-04 Dodge 5.9L Cummins or 2019+ Dodge Cummins 6.7L CR.
• Power goals and use: daily driving and a project with higher boost pressure typically place different demands on the block.
• Included parts: whether the cylinder heads are included and whether the variant comes with ARP studs.
• The rest of the engine: injection, turbo and cooling must match the power level the block is built for.

Installation and break-in

Installation requires experience, the correct tools and precise torque specifications. Follow the manufacturer's instructions for break-in and the first oil change, as the requirements can depend on the version. Always check the part number against your engine code, and see the other parts from Industrial Injection if your project requires additional components.

Frequently asked questions

What is the difference between the Stock and Performance versions?

The designations cover Industrial Injection's different versions. Which components and which power level each version is intended for depends on the specific part number, so read the product description and compare it with your power goal.

Can I reuse my old cylinder heads on a short block?

This is often possible if the cylinder heads have been checked for cracks, flatness and wear and match the engine code. If they are in questionable condition, a long block or new cylinder heads can be the safest choice.

Does the car need an inspection after replacing the engine block?

That depends on the car and on whether the engine differs from what is registered. Check the requirements for the specific part number and your car before installation, so you know whether the modification must be reported or inspected.