This comprehensive workshop manual is designed for the Ferrari 308 Quattrovalvole, 328 GTB, and 328 GTS models produced between 1977 and 1989. It provides detailed information and instructions for all aspects of maintenance, repair, and restoration of these iconic sports cars. Dive into the intricate workings of their powerful engines, delve into the complexities of their sophisticated drivetrains, and understand the nuances of their elegant bodywork. This manual goes beyond basic maintenance, offering detailed schematics, troubleshooting guides, and step-by-step procedures for tackling even the most challenging mechanical tasks.

The Ferrari 308 Quattrovalvole, 328 GTB, and 328 GTS were a series of mid-engine sports cars produced by the Italian automaker Ferrari from 1980 to 1989. They were the successors to the highly successful Ferrari 308 GTB and GTS, and represented a significant evolution in both performance and design. The "Quattrovalvole" nomenclature refers to the engine's four valves per cylinder, a significant upgrade from the previous two-valve design. This resulted in a substantial power increase, with the 3.0-liter V8 engine producing 240 horsepower in the 308 Quattrovalvole, and 270 horsepower in the 328 GTB and GTS. The 328 series further refined the design, incorporating a new, more efficient Bosch Motronic fuel injection system and aerodynamic improvements that contributed to its enhanced performance.

Visually, the 308 Quattrovalvole, 328 GTB, and 328 GTS built upon the classic Pininfarina-designed lines of their predecessor. The iconic wedge shape, distinctive pop-up headlights, and sleek profile remained prominent, while subtle changes like a more sculpted front bumper, larger side air intakes, and redesigned rear spoiler distinguished the newer models. The 328 GTS further differentiated itself with its removable targa top, offering both a coupe and convertible experience. These models cemented Ferrari's reputation for producing powerful, visually stunning, and enduringly stylish sports cars, further solidifying their place as a global automotive icon. They continue to be prized by collectors and enthusiasts today, valued for their performance, handling, and timeless design.