Ringbrothers unveils 'Billie,' a 5,500-hour, 650-hp 1965 Pontiac GTO convertible
Ringbrothers' SEMA build this year is Billie, a 1965 Pontiac GTO convertible that started life as a regular Tempest and consumed 5,500 build hours. The body is five inches wider than stock, with carbon fiber on the hood, front wheel tubs, doors and rear diffuser. Power is a supercharged 6.2-liter LT4 V8 built by Wegner Motorsports, good for 650 hp and 650 lb-ft of torque, paired with a Bowler Performance 10-speed automatic. Underneath is a Roadster Shop Stage III Fast Track chassis with HRE wheels, Michelin Pilot Sport Cup 2 tires, Fox coilovers and six-piston Brembo brakes. Per Mike Ring, Billie began as a tribute to a GTO once owned by the client's mother.
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