The DeNooyer Chevrolet HTR-SS454 Camaro will be the centerpiece of GM Performance Parts’ (GMPP) display at the Barrett-Jackson Palm Beach collector car auction, which began today. It is one of the two dealer-built supercars featured on the cover of the 2011 GM Performance Parts catalog.

Based on the spirit of old school COPO Camaros of the late 60s, the HTR-SS454 uses a GMPP LSX454 crate engine, delivering 620 horsepower and 590 lb.-ft. of torque. Being delivered in long-block form allows the builder to finish the engine using the most appropriate components for the application. In this case, DeNooyer and build partner Redline Motorsports used an LS7 intake manifold and other production-based parts to complete the Camaro’s engine.

Chassis dyno testing of the Camaro delivered a strong 520 horsepower and 530 lb.-ft. of torque at the rear wheels which, allowing for driveline losses, correctly matches to the expected 620 hp at the flywheel. The car’s driveline was modified to handle the 200-horsepower increase with stronger axles and stiffer bushings throughout.

“The HTR-SS454 is the spiritual successor to the dealer-built supercars of the late Sixties,” explained Dr. Jamie Meyer, product integration manager for GM Performance Parts. “The combination of the heritage-inspired Camaro and GMPP crate engines is sparking a new generation of supercars, but with greater power and refinement than anything offered in the classic muscle car era.”

The GMPP display at Barrett-Jackson will include the latest in crate engines and engine components, including small-block, big-block and LS crate engines. Available at the display will be the latest edition of the GMPP catalog, which offers detailed product information and installation tips for the entire range of crate engines and engine parts, as well as accessories for the newest passenger cars and trucks.

The Barrett-Jackson Collector Car Event is currently underway at the South Florida Fairgrounds and runs through Saturday, April 9. Adult tickets are $13 for Friday and $18 for Saturday. Discounts are available for Seniors, Military, students and children. For additional information, please visit the event web site.