Who makes NASCAR engines in 2025
In 2025, NASCAR Cup Series engines are built by manufacturer-backed racing engine shops: Chevrolet teams are supplied by Hendrick Motorsports and ECR Engines through their Hendrick–ECR alliance, Ford teams by Roush Yates Engines, and Toyota teams by Toyota Racing Development (TRD USA). Beyond the Cup Series, the Craftsman Truck Series uses Ilmor Engineering’s NT1 spec engine, and ARCA uses the Ilmor 396 spec package.
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Cup Series engine builders in 2025
The NASCAR Cup Series continues with manufacturer-specific, purpose-built pushrod V8s for the Next Gen car, with each OEM relying on dedicated partners to design, assemble, and support engines at the track. While the formula remains tightly regulated, suppliers differentiate through development, durability, and drivability within NASCAR’s rules.
- Chevrolet: Hendrick Motorsports Engine Department and ECR Engines (operating in a formal Hendrick–ECR technical alliance) build and supply the Chevrolet R07 V8 to Chevy teams.
- Ford: Roush Yates Engines (Mooresville, North Carolina) designs, builds, and supports the Ford FR9 V8 for all Ford teams.
- Toyota: Toyota Racing Development, U.S.A. (TRD USA), centered in Costa Mesa, California with East Coast support in North Carolina, designs, builds, and services Toyota’s NASCAR V8 for its Cup teams.
Together, these programs produce tightly controlled 358 cu in (about 5.86L) pushrod V8s tuned to NASCAR’s rules package—typically about 670 horsepower on most tracks and reduced output at superspeedways via tapered spacers—while providing reliability over long race distances.
Other NASCAR national and development series
Craftsman Truck Series
The Truck Series operates on a cost-controlled spec engine model designed to level performance and reduce expenses for teams across the grid.
- Ilmor Engineering supplies the NT1 spec engine to all teams, with NASCAR-managed parity and lifecycle controls.
This standardized approach simplifies competition and logistics while maintaining close racing and manageable budgets.
Xfinity Series
The Xfinity Series features a mix of manufacturer-backed engines and NASCAR-approved cost-control options, with suppliers aligning broadly to Cup infrastructure.
- Chevrolet programs typically source engines through ECR Engines and Hendrick-affiliated builds.
- Ford teams are supported by Roush Yates Engines.
- Toyota teams receive engines from TRD USA.
- NASCAR also permits approved spec/cost-controlled engine options used by select teams, subject to NASCAR oversight and parity checks.
This blended model allows top teams to mirror their Cup affiliations while giving smaller operations a viable, more affordable pathway.
ARCA Menards Series
ARCA, a key development series under the NASCAR umbrella, continues with a long-running spec engine program aimed at affordability and consistency.
- Ilmor Engineering’s 396 spec engine package is the standard, with controlled maintenance cycles and tech support.
The spec architecture keeps ARCA sustainable for emerging drivers and teams, providing consistent performance benchmarks.
Why these builders dominate
NASCAR’s rules limit displacement, architecture, and output, so engine programs win on execution: parts quality, friction reduction, thermal management, and power delivery tailored to track type and gearing. Ford, Chevrolet, and Toyota rely on their entrenched builders—Roush Yates, Hendrick–ECR, and TRD—because they offer integrated R&D, dyno resources, durability testing, and robust at-track support. On the cost-controlled side, Ilmor’s spec engines deliver parity and predictable operating costs that suit Trucks and ARCA.
What’s unchanged in 2025—and what’s next
NASCAR’s Cup engine formula remains an all-ICE pushrod V8 for 2025, with no hybrid deployment this season. The sanctioning body and OEMs continue evaluating future tech pathways, but the 2025 calendar stays with the established package, keeping the same supplier landscape intact across the national series.
Summary
For 2025, NASCAR Cup engines come from three manufacturer-aligned builders: Hendrick Motorsports and ECR Engines for Chevrolet (in a Hendrick–ECR alliance), Roush Yates Engines for Ford, and TRD USA for Toyota. The Truck Series uses Ilmor’s NT1 spec engine, and ARCA runs Ilmor’s 396 spec platform. Xfinity teams lean on the same OEM partners with NASCAR-approved cost-control options available, preserving both competitive depth and financial sustainability across the ladder.
What manufacturers are in NASCAR 2025?
Chartered teams
| Manufacturer | Team | Driver |
|---|---|---|
| Chevrolet | Trackhouse Racing | Daniel Suárez |
| Ford | Haas Factory Team | Cole Custer |
| RFK Racing | Brad Keselowski | |
| Chris Buescher |
How much horsepower does a 2025 Nascar engine have?
Joseph Srigley | May 1, 2025
“If we were to increase the power from 670 horsepower to about 750 horsepower, that probably wouldn’t be much of a change for us today,” Yates explained. “But, to go back to those 900 horsepower engines, that would be quite the project and would definitely decrease the life of the engine.”
Who manufactures NASCAR engines?
Builders: Chevrolet: ECR Engines, Hendrick Motorsports. Ford: Roush-Yates Engines. Toyota: Toyota Racing Development.
Do Toyota NASCAR’s have Toyota engines?
While Toyota uses a V-8 Camry for racing in NASCAR, the street uses a V-6 engine. All Toyota V-8 engines are manufactured and tuned by TRD in California.
