Why choose a Chummins conversion for your Chevy
- Cummins torque with Chevy chassis comfort: Pair commercial-grade Cummins power with the ride and interior you already like.
- Fitment for Chevy bays: Cast and machined parts are designed around Chevy frame rails, steering shaft clearance, downpipe routing, and A/C lines.
- Cooling and charge-air control: Turbo and manifold options that help manage EGT on long grades and in high heat.
- Serviceability: Straightforward filter access, sensor ports, and hardware choices simplify future maintenance.
Common Chevy applications
Support varies by model year and package. Popular targets include 2500HD and 3500 platforms across LB7, LLY, LBZ, LMM, LML, and L5P eras. Verify your year, transmission choice, and accessory layout on each product page.
Turbo choices for your goals
- Daily and towing focus: Responsive single-turbo options sized for early spool and steady EGT control.
- Street performance: Mid-size singles for stronger midrange and top-end while keeping street manners.
- Higher power builds: Large single or compound-ready options for added airflow and headroom when fueling is increased.
What is typically included
Application-specific turbocharger and manifold configuration, oil feed and return solutions, charge-air plumbing, clamps and couplers, brackets, and hardware as listed on each kit. Contents can vary by year and package, so review the product details before ordering.
Fitment notes for Chevy swaps
- Downpipe and firewall clearance: Check cab-to-engine spacing and heat shielding.
- Steering and A/C routing: Confirm shaft angle, hose length, and compressor location.
- Intercooler and intake path: Plan for pipe diameter, boot rating, and sensor placement.
- Driveline and mounts: Verify crossmember, mount position, and transmission adapter requirements.
Installation guidance
- Experienced DIY owners can complete the swap with quality tools, patience, and careful measurements.
- Professional installation is recommended if you are new to oil line routing, turbo clocking, and charge-air alignment.
- Use new gaskets and quality hardware. Pressure test the charge-air system and check for leaks before first start.
Planning supporting upgrades for your Chevy swap? Explore S300 Single Turbos, S400 Single Turbos, and Add-A-Turbo Kits.
Chevy Chummins conversion Q&A
What is a Chummins conversion
A Chummins conversion installs a Cummins diesel into a Chevy truck. The goal is Cummins torque and durability in a Chevy chassis with familiar ergonomics and towing stability.
Will my Chevy still drive well every day
Yes. With the right turbo sizing and plumbing, you can keep good street manners, quick response in traffic, and steady temperatures on long grades.
How do I choose the right turbo for my Chevy swap
Match turbo size to load, elevation, gearing, and tire size. Towing builds prefer earlier spool. Performance builds may choose larger compressors with freer turbine housings and appropriate fueling.
Do I need tuning
Many swaps benefit from calibration updates to optimize fueling and shift strategy. If injectors or pumps are upgraded, tuning is recommended.
What should I prepare before the swap
Confirm transmission adapter needs, mount locations, intercooler piping path, downpipe clearance, and oil feed and return. Gather fresh gaskets, fluids, and quality clamps and boots.
