01
1959
WinnerDaytona 500
Driver
Lee Petty
Car / engine
1959 Oldsmobile Super 88 with 394 Rocket V8
Oldsmobile wins the first Daytona 500
Lee Petty's photo-finish victory in a 394-powered Oldsmobile became one of NASCAR's defining early moments.
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Oldsmobile 394 Rocket V8 enginePhoto: Michael Barera · CC BY-SA 4.0
Oldsmobile · Gen I Rocket V8
Oldsmobile 394 Rocket V8
The final and largest evolution of Oldsmobile's first-generation Rocket V8.
394
Cubic inches
The 394 represented the displacement peak of the original 1949 Rocket architecture before Oldsmobile introduced a new thin-wall engine family for 1964.
Displacement
394 ci
Bore
4.125"
Stroke
3.6875"
Years
1959–1964
Key Takeaway
The 394 represented the displacement peak of Oldsmobile's original Rocket architecture. A 4.125-inch bore and 3.6875-inch stroke gave the engine strong torque while retaining the same basic cast-iron OHV design first launched in 1949.
Technical Specifications
- Horsepower
- 260–330 hp in documented 1963 versions; higher-output performance variants existed by year
- Torque
- Up to 440 lb-ft in documented 1963 four-barrel form
- Architecture
- 90-degree OHV V8
- Block
- Cast iron
- Cylinder heads
- Cast iron
- Valvetrain
- Pushrod OHV with hydraulic lifters in mainstream versions
- Aspiration
- Naturally aspirated
- Fuel delivery
- Two-barrel and four-barrel carburetion; high-performance variants
- Main bearings
- 5
The 394 represented the displacement peak of Oldsmobile's original Rocket architecture. A 4.125-inch bore and 3.6875-inch stroke gave the engine strong torque while retaining the same basic cast-iron OHV design first launched in 1949.
Internal Specifications
Variant-specific values are labeled. Engine families that span multiple years or RPOs can have different heads, cams, induction and rotating parts, so the exact code/year always takes priority.
Notable Applications
Oldsmobile 88Oldsmobile Super 88Oldsmobile 98Oldsmobile Starfire
Strengths
- Largest Gen I Rocket displacement
- Strong torque and luxury-car performance
- Mature development of the original Rocket architecture
Weaknesses / Watch-outs
- Heavy early-generation casting
- Period-specific intake and accessory systems
Common Upgrades
- Four-barrel or multiple-carb induction
- Modern ignition
- Improved cooling and oil control
Racing History & Legacy
A 394-powered 1959 Oldsmobile Super 88 driven by Lee Petty won the inaugural Daytona 500 in a photo finish.
The 394 closed the first Rocket chapter with one of Oldsmobile's most famous race victories.
References & Image Credit
Engine image: Michael Barera · CC BY-SA 4.0 · source
Engineering Notes Worth Knowing
01
394 cu in / 6.5 L with 4.125 x 3.6875-inch bore and stroke.
02
90-degree OHV V8 from Oldsmobile's original Rocket family.
03
Two- and four-barrel induction were used, with higher-performance variants by application.
04
Documented 1963 versions ranged up to roughly 330 hp and 440 lb-ft.
History · context · related reading
The Story Behind Oldsmobile 394 Rocket V8
By the early 1960s, Oldsmobile had stretched the original Rocket architecture as far as production needs demanded. The 394 powered everything from luxury models to performance-oriented cars and closed out the first Rocket generation at maximum displacement.
Documented motorsport results
Famous Race Wins
TorqueList Garage Reference Series
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