1968 Pontiac Firebird Sprint

1968 Pontiac Firebird Sprint

1968 PONTIAC FIREBIRD SPRINT BACKGROUND
Before the Firebird even debuted in 1967, John Delorean was already dreaming of casting the new Firebird more in the image of a European GT car, rather than the muscle car-image of its sister-car, the Chevy Camaro. He didn’t like the heavy cast iron American V8s and didn’t think they were necessary for a car that handled like the new Firebird. Pontiac engineers put much work into making the Firebird handle better than the Camaro, and he thought a lighter engine that produced nearly as much power as the bigger V8s might be the perfect combination. The new engine was a 4.1-liter (250 cubic inch) inline-six with a chain-driven single overhead camshaft (SOHC) operating 2 valves-per-cylinder. In base form with a one-barrel carburetor it made 175-horsepower and was the base engine for the Firebird, starting in 1968. But, add in 10.5:1 compression, a hot cam and a big 4-barrel carb and it became the “Sprint” and in this form, the engine produced 215hp. Period automotive journalists and testers said that the ’68 Firebird Sprint was pretty fast and handled great. However, 6-cylinder power simply didn’t resonate with American buyers, who looked at inline-sixes as economy engines. So despite its excellent balance of performance and handling, the Firebird Sprint didn’t make it past the 1st-generation. At least not as a special OHC 6-cylinder car. The Sprint name continued on in later Firebirds as an appearance package.


1968 Pontiac Firebird Sprint INTERIOR

ABOVE & BELOW: This car was ordered without a center console or even a floor shifter. Note that it has a clutch pedal so this car must have a 3-speed column-shift. The steering wheel is an aftermarket item. Otherwise the ’68 Firebird Sprint interior is open, fairly spacious for a Pony Car, and nice-looking. It seems especially big inside without the center console.


1968 Pontiac Firebird Sprint ENGINE


1968 Pontiac Firebird Sprint PRODUCTION NUMBERS

ENGINE TYPE

OHC 4.1 6cyl

OHC 4.1 6cyl Sprint

OUTPUT

175hp

215hp

w/MANUAL TRANS

7,528

1,216

w/AUTO TRANS

8,441

1,309

TOTAL

15,969

2,525


1968 Pontiac Firebird Sprint SPECIFICATIONS

Wheelbase

Length

Width

Height

Track, front

Track, rear

Curb weight

Fuel capacity

Tire size

Wheel size

Brakes, front

Brakes, rear

ENGINE SPECS

Engine type

Displacement

Bore & Stroke

Valvetrain

Compression ratio

Fuel system

Horsepower @ RPM

Torque @ RPM

108.0″ / 2743mm

188.8″ / 4796mm

72.8″ / 1849mm

50.0″ / 1270mm

60.0″ / 1524mm

60.0″ / 1524mm

3,214 lb / 1458 kg

18.5 US gal / 70.1 L

Firestone F70-14

6″ X 14″

241mm drums

241mm drums

OHC inline-6

250.38 ci / 4103cc (4.1-liter)

3.88″ X 3.53″ / 98.55mm X 89.66mm

Single overhead cam, 2 valves-per-cylinder

10.5:1

1X Rochester 4-barrel carb

215 bhp @ 5200 rpm

255 lb-ft @ 3800 rpm