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NASCAR engine
| NASCAR engine | |
|---|---|
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| Overview | |
| Manufacturer |  Ford (1950-present) Chevrolet (1955-present) Toyota TRD (2004-present)[1][2][3] Dodge (1953-1985, 2001-2012) Pontiac (1959-2004) Buick (1981-1987) Oldsmobile (1949-1987) Hudson (1951-1954) Plymouth (1959-1977) Chrysler (1954-1956, 1981-1985) Mercury (1952-1987) Nash (1950-1951) AMC (1971-1978) |
| Production | 1949–present |
| Layout | |
| Configuration | 90° pushrod V-8 60°-90° V-6 (Busch Series only; 1982-1994)[4][5] I-6 (Hudson Hornet)[6] |
| Displacement | 231–440 cu in (3.8–7.2 L) |
| Cylinder bore | 3.8–4.185 in (97–106 mm) |
| Piston stroke | 3.25–4.5 in (83–114 mm) |
| Valvetrain | 16-valve, OHV, two-valves per cylinder |
| Compression ratio | 7.2:1–14:1 |
| Combustion | |
| Supercharger | Naturally-aspirated |
| Fuel system | Carburetor / Electronic fuel injection |
| Fuel type | Gasoline |
| Oil system | Dry sump |
| Output | |
| Power output | 135–750 hp (101–559 kW)[7][8][9] |
| Torque output | 253–783 lb⋅ft (343–1,062 N⋅m) |
| Dimensions | |
| Dry weight | 575 lb (261 kg) |
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NASCAR, the highest governing body and top level division for stock car racing in the United States, has used a range of different types of engine configurations and displacements since its inaugural season in 1949.[10][11] The engines are currently used in the Cup Series, Xfinity Series, Camping World Truck Series, and the Whelen Modified Tour.
- ^ "TRD Engines Behind the Build".
- ^ "How do Toyota, Ford, and Chevrolet Engines Differ in NASCAR?".
- ^ "What Engine Does Toyota Use in Nascar? – McNally Institute".
- ^ "Chevy 4.3L 262ci V-6 - Engine Build - Overview - Tech - Hot Rod Magazine". Motortrend. 18 July 2014.
- ^ "1994 Chevy 90 deg V6 Race Engine Spec Sheet".
- ^ "Hudson Hornet Twin H-Power". Retrieved 9 October 2022.
- ^ "New NASCAR Rule Will Restrict Gear Ratios". AP NEWS.
- ^ "Horsepower reduction among 2015 rules package changes". February 26, 2016. Archived from the original on February 26, 2016.
- ^ "NASCAR reportedly considering Sprint Cup engine horsepower reduction in 2015 – MotorSportsTalk". May 2, 2016. Archived from the original on May 2, 2016.
- ^ "NASCAR: The Evolution Of The Sport (1948-1950's) | Bleacher Report | Latest News, Videos and Highlights". bleacherreport.com. Retrieved October 13, 2021.
- ^ "NASCAR: The Evolution Of The Sport (1950-1959) | Bleacher Report | Latest News, Videos and Highlights". bleacherreport.com. Retrieved October 13, 2021.
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