Ringbrothers spent 5,500 hours building a special 1965 Pontiac GTO Convertible called “Billie” at their company in Wisconsin. The project is powered by a supercharged LT4 V8 providing 650 hp (478 kW) and 650 lb-ft (881 Nm) of torque. Behind that is a Bowler Tru-Street 10L90 10-speed automatic transmission and independent rear end. Ringbrothers upgraded the car’s handling with a Roadster Shop Fast Track Stage 3 chassis featuring a fully independent suspension, custom longer front control arms, C7 Corvette end links, and Fox RS SV adjustable coilovers. Braking is handled by Brembo six-piston calipers in the front and rear. Ringbrothers spent most of their time on the body. They widened the car five inches and extended rockers down and forward. They fabricated a custom floor, trunk, firewall, and tunnel. They added carbon fiber hood, lower valance, and rear diffuser. Ringbrothers covered the body in BASF Galsurit “Billie Goat Blue” paint. The car rolls on a set of HRE G-Code wheels (19×10.5, 20×13) with Michelin Pilot Sport Sport Cup 2 (295/35, 345/30).
Source: photos by David Heller and CenterScene