Holley unveiled its meticulously preserved and modernized 1995 Chevrolet Camaro Z28 with just over 400 original miles at the SEMA Show in Las Vegas. The build showcases a supercharged LT4 engine paired with an advanced 6L80E automatic transmission, transforming this classic into a high-performance machine.
Key Takeaways
- Holley installed a supercharged LT4 crate engine and a 6L80E six-speed automatic transmission in the original Z28.
- The build includes Holley’s Terminator X Max system, digital dash, fuel system upgrades, and custom mounts for a complete ecosystem demonstration.
- Braking improvements feature BAER 6S brakes with two-piece rotors and QA1 suspension components.
The project began in August 2025 to highlight Holley’s fourth-generation engineering capabilities. The LT4 engine, producing over 600 horsepower, is a significant upgrade from the original 275-horsepower LT1 unit. This transformation underscores Holley’s commitment to integrating legacy platforms with cutting-edge technology.
Compared to competitors like JBA and Edelbrock, Holley’s build stands out for its comprehensive approach, including not just engine upgrades but also transmission integration and chassis enhancements. The use of a 6L80E automatic contrasts with the original T-56 manual, demonstrating Holley’s expertise in modernizing classic transmissions.
With fuel demands handled by an upgraded LS1-style tank and dual-pump module capable of supporting E85, this build showcases Holley’s ability to meet diverse performance needs. The new fuel system can deliver consistent flow under boost conditions, a critical feature for high-performance applications.
The chassis enhancements include BAER 6S brakes with massive two-piece rotors and QA1 double-adjustable coilovers with remote reservoirs. These components ensure superior braking and handling capabilities compared to stock configurations, enhancing overall vehicle performance.
Frequently Asked Questions
What is the horsepower output of the supercharged LT4 engine?
The supercharged LT4 crate engine in Holley’s 1995 Camaro Z28 build produces over 600 horsepower, significantly higher than the original 275-horsepower LT1.
What transmission was used to replace the original T-56 manual?
Holley replaced the original T-56 six-speed manual with a 6L80E six-speed automatic, demonstrating advanced control integration and performance capabilities.
This project reflects Holley’s dedication to blending classic automotive heritage with modern engineering advancements. The result is a high-performance machine that honors its roots while pushing the boundaries of what is possible in engine and transmission technology.
