Pro Street 1957 Corvette Packs 840 HP in $120K Custom Build

Feb 19, 2026 2 min read
Pro Street 1957 Corvette Packs 840 HP in $120K Custom Build

A heavily modified 1957 Chevrolet Corvette is redefining first-generation performance with a Pro Street build centered around massive big-block power and modern drivability enhancements. Finished in red and configured as a two-door convertible, the custom roadster represents an investment of more than $120,000, blending classic styling with contemporary engineering.

At the core of the build is a 625 cubic-inch big-block Chevrolet engine producing a claimed 840 horsepower and 820 lb-ft of torque. The powerplant alone, along with the transmission, accounts for more than $35,000 of the overall investment. Designed for both visual impact and performance capability, the engine delivers output figures far beyond what the Corvette offered in its original 1957 form.

Fuel delivery is managed by a Holley Sniper EFI system equipped with onboard diagnostics, bringing modern electronic control to the large-displacement V8. The setup is intended to improve reliability and tuning precision while maintaining the aggressive performance expected from a Pro Street machine.

The chassis and drivetrain components were selected to handle the substantial output. A Ron Davis chassis underpins the build, while a TCI transmission and converter channel power to the pavement. The car is described as street legal, indicating that despite its competition-inspired presence, it remains suitable for road use.

Additional modern touches include a backup camera, integrating contemporary convenience into the vintage platform. The red exterior is matched by a red interior, maintaining a cohesive and bold presentation throughout the vehicle.

The Corvette’s craftsmanship and performance have drawn national attention, including a feature in Vette Vues Magazine in May 2021. With zero miles listed and an extensive build sheet backing its specifications, this 1957 Corvette stands as a striking example of how early American sports car design can be transformed into a high-horsepower Pro Street showcase while retaining its iconic identity.

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