The 2025 Corvette Stingray, despite rumors of a facelift, continues to impress with its 490-horsepower small block engine. The standard exhaust system delivers ample power for most drivers, but those seeking more can opt for a performance upgrade that boosts power and torque to 495 horsepower and 470 pound-feet.
For those who crave even more performance, Lingenfelter offers a comprehensive engine package that includes heads and a camshaft, significantly enhancing power and torque.
The Lingenfelter package, which costs $13,495 installed, includes CNC ported cylinder heads with full roll runners and chambers, a Lingenfelter LSx Dual Valve Spring Kit with titanium retainers, seats, locks, and seals, performance racing hydraulic roller lifters, a CHE trunnion kit, fuel injector O-rings, engine installation, and 0W-40 synthetic oil.
This package is advertised to deliver over 600 horsepower and 535 pound-feet of torque, making it a popular choice for those seeking maximum performance from their Stingray. In addition to the Lingenfelter package, the Corvette Stingray can be further customized with other performance upgrades such as a Performance Design pTR carbon-fiber intake manifold, a 95-millimeter ported throttle body, a Halltech cold air intake airbox, Corsa Performance headers, and a black chrome-tipped Corsa Performance cat-back exhaust system.
These upgrades can be combined with the Lingenfelter package to create a truly unique and powerful Corvette Stingray. Lingenfelter’s LT2 enhancement involves a meticulous preparation process. Before firing up the engine, the coolant system is filled with the appropriate amount of water and ACDelco Dex-Cool antifreeze.
The modified LT2’s engine bay plaque distinguishes it from its unmodified counterparts. To fine-tune the performance, the engine control unit is unlocked for dyno calibration before delivery. Designed for both coupe and convertible Stingray models, the heads and cam package infuse the LT2 with a more aggressive idle, courtesy of the GT32 camshaft.
Lingenfelter explicitly states that this modification is incompatible with Active Fuel Management (AFM), the fuel-saving technology that deactivates half the cylinders during light loads. As a result, Lingenfelter disables AFM for added reliability.
The GT32 camshaft was engineered specifically for fifth-generation small-block engines, including the LT1 in the Camaro and previous-generation Corvette, as well as the L83/L84 and L86/L87 truck engines. These 80-series V8 engines are the 5.3- and 6.2-liter EcoTec3 mills equipped with either AFM or the more advanced Dynamic Fuel Management (DFM).
DFM is a significantly more complex system, offering 17 different firing orders. Surprisingly, pickup trucks with DFM can deactivate up to 7 cylinders to improve fuel efficiency. Some owners may find this feature undesirable, leading to the development of the AFM/DFM Disabler by Range Technology a few years ago. At the time of writing, this device is priced at $213.26, excluding shipping.
