Turbocharged 505-Powered 1969 Pontiac Firebird Coupe

Description

Introduced for the 1967 model year as Pontiac’s answer to the growing pony car market, the Firebird combined distinctive styling with a wide range of performance-oriented powertrains. By 1969, the first-generation Firebird had evolved into one of Pontiac’s most recognizable muscle-era offerings, featuring revised styling and a strong performance reputation that made it a favorite platform for both street and drag racing enthusiasts.

This modified 1969 Pontiac Firebird is reportedly powered by a Butler Performance–built, turbocharged 505 cubic-inch V8 based on a Pontiac IA II block. Notable engine components include an Eagle 4340 forged steel crankshaft, forged H-beam connecting rods, Ross forged pistons, ported and polished Edelbrock CNC-machined cylinder heads, an aluminum intake manifold, a 102mm Holley throttle body, 120 lb/hr Holley fuel injectors, and upgraded cooling system components.

Power is routed through a GM TH400 three-speed automatic transmission equipped with a manual valve body, dual external transmission coolers, and a PTC torque converter. The transmission sends power to a narrowed 12-bolt rear axle fitted with a Mark Williams 3.31:1 gear set, 40-spline axles, and a Mark Williams Drivelines heavy-duty Posi unit.

Additional performance upgrades include Holley electronic fuel injection, an air-to-air-intercooled BorgWarner S475 turbocharger, four-wheel Wilwood disc brakes, and upgraded fuel and cooling systems with black braided hoses and AN fittings throughout. The front suspension features QA1 control arms paired with CalTracs 90/10 drag shocks, while the rear is equipped with CalTracs split mono leafsprings with a slider system, CalTracs traction bars, and nine-position adjustable shocks.

Finished in Jazz Blue Pearl over black vinyl upholstery featuring TMI seats, this Firebird has been further modified with a roll cage, racing harnesses, Weld Racing wheels, and numerous additional performance-oriented upgrades.

This modified 1969 Pontiac Firebird is now offered with a clean Colorado title in the seller’s name.

Highlights

• Reportedly powered by a Butler Performance 505ci Pontiac V8

• BorgWarner S475 turbocharger system

• Holley & Edelbrock electronic fuel injection components

• GM TH400 3-speed automatic transmission

• Narrowed 12-bolt rear axle said to have Mark Williams internals

• Finished in dark metallic blue over retrimmed black vinyl interior

• Roll cage and G-Force Racing Gear harnesses

• 4-wheel disc brake conversion

Modifications

• Powertrain:

  • Tuned to run on E85

  • Butler Performance 505ci Pontiac V8 engine

  • Pontiac IA II aftermarket engine block

  • Full comp hydraulic roller cam

  • Scorpion rocker arms

  • S475 turbocharger

  • Edelbrock performance cylinder heads

  • Holley & Edelbrock electronic fuel injection components

  • Aftermarket dual exhaust system

  • Aluminum radiator

  • Twin electric cooling fans

  • Chrome alternator

  • Black braided hoses with AN-type fittings

  • Moroso oil catch can

  • Mallory ignition coil

  • Fuel cell

  • American Autowire harness

• Drivetrain, Chassis, & Suspension:

  • GM TH400 automatic transmission

  • Narrowed 12-bolt rear axle

  • Mark Williams rear axle internals

  • B&M floor shifter

  • Subframe connectors

  • Front suspension:

    • QA1 control arms

    • CalTracs 90/10 drag shocks

  • Rear suspension:

    • CalTracs split mono leafsprings

    • Slider system

    • CalTracs traction bars,

    • 9-position adjustable shocks.

• Brakes

  • Wilwood master cylinder

  • Front Wilwood disc brakes

  • Rear Classic Industries disc brakes

• Exterior:

  • Repainted in PBX Jazz Blue Pearl approximately 6 years ago

  • Staggered-width Weld Racing wheels

  • P325/50R15 M&H Racemaster rear tires

  • Rear spoiler

  • Tinted windows

• Interior:

  • TMI front bucket seats and rear bench

  • Classic Industries door panels

  • GT Grant steering wheel

  • G-Force Racing Gear 4-point harnesses

  • Chromoly roll cage with removable door bars

  • AutoMeter Phantom gauges

  • Dash-mounted boost gauge

  • Battery relocated to trunk in Taylor battery box

Servicing

According to the seller, the vehicle underwent a complete restoration and build process that included, but was not limited to, the following:

• Installation of Butler Performance 505ci engine

• Turbocharger system installation

• Electronic fuel injection conversion

• Cooling system upgrades

• Fuel system upgrades

• 4-wheel disc brake conversion

• Rear axle modification

• Interior refurbishment

• Modified suspension

Known Imperfections

• Up-close images detailing the vehicle's condition are viewable in the gallery.

Ownership History

This modified Firebird was titled in Montana prior to the seller's acquisition in May 2016.