Lingenfelter’s twin-turbo 427ci LT2 for the C8 Corvette could deliver 1,300 hp—now in testing with release on the horizon.
Just months after unveiling a naturally aspirated 427-cubic inch (7.0-liter) LT2 V8 upgrade for the C8 Corvette, Lingenfelter Performance Engineering (LPE) has confirmed development of a twin-turbo version—a monstrous powerplant expected to produce more than 1,100 horsepower at the wheels, or an estimated 1,300 horsepower at the crank.
The announcement was made by Brandon Baker, Lingenfelter’s Vice President of Sales and Marketing, during a recent interview with Road & Track. He revealed that an early development mule has already accumulated several thousand miles of testing, and the team is waiting for warmer weather to complete final calibration.
Based on the LT2 architecture found in the C8 Corvette Stingray and E-Ray, Lingenfelter’s 427 upgrade starts at around $30,000, climbing to $35,000 with optional high-performance components including a revised intake manifold, throttle body, and exhaust system. The twin-turbo package, while still awaiting an official price tag, will add a significant cost due to the required upgraded fuel system and additional hardware.
Perhaps most notably, the layout of the turbo system is designed to mirror the twin-turbo arrangement found in the upcoming ZR1’s flat-plane crank LT7 V8, allowing Lingenfelter to meet its performance targets with just 15 psi of boost—five less than Chevrolet is expected to run in its factory halo car.
LPE’s naturally aspirated 427 already produces 700 horsepower without forced induction, making it one of the most powerful NA small-blocks in the market. The forthcoming twin-turbo version represents a dramatic leap in performance that will place it firmly in hypercar territory.
While no official release date has been announced, the package is generating significant buzz among Corvette enthusiasts and tuning communities alike. Once finalized, the Lingenfelter TT427 is poised to be one of the most extreme and compelling aftermarket performance options available for the C8 platform.
