This content is not included in your SAE MOBILUS subscription, or you are not logged in.
The GM 4.3 Liter V-6 Gasoline Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 01, 1984 by SAE International in United States
Annotation ability available
Two new 4.3 liter engines with 90° V-6 configurations were developed for use in Chevrolet's 1985 light duty trucks and rear wheel drive passenger cars. The new engines were optimized from the standpoint of oil sealing, performance, and fuel economy.
A four-barrel quadrajet carburetor mounted on an open inlet plenum is used for truck applications and a 1×2 throttle body injection system mounted on a similar open inlet plenum is used for passenger car applications. Both engines are designed for optimum engine breathing and cylinder charging, and each requires a specific engine/emission control system.
These engines are configured for even firing, have swirl inlet ports, and fast burn combustion chambers. The results obtained through the extensive engineering development program met and/or exceeded the program goals for performance, oil and coolant sealing, and fuel economy.
CitationWalker, J., Wiltse, R., and Harhaus, V., "The GM 4.3 Liter V-6 Gasoline Engine," SAE Technical Paper 841225, 1984, https://doi.org/10.4271/841225.
- Leikin A. S. “Stress Concentration in Crankshaft Fillets,” Russian Engineering Journal 1960
- Niles D. E. “Stress and Fatigue Analysis of a Two Throw Crankshaft,” SAE paper number 670010 SAE Congress 1967
- “Eccentricities of Bearing Design,” G.M. Research Publication “Projects,” PR-202 November 1970
- Zwerner J. S. “The General Motors 3.3 Liter 90° V-6 Engine Designed by Chevrolet,” SAE Paper No. 770822 Passenger Car Meeting Sept. 26-30, 1977
- Matekunas F. A. “Spark-Ignition Engines — Combustion Characteristics, Thermodynamics and the Cylinder-Pressure Card,” General Motors Research Laboratories Publication GMR-4660 March 14 1984