Alfa Romeo 155 Saloon AR67301 2.5L Petrol Engine For Sale.

Alfa Romeo 155 Saloon AR67301 2.5L 12-Valve V6 Petrol Engine.

Busso V6 family, celebrated for its smooth power delivery, Used Engine For Sale

This Alfa Romeo 155 Saloon AR67301 2.5L Petrol Engine For Sale is a classic performance power plant from Alfa Romeo’s Busso V6 family, best for its smooth power delivery, mechanical character, and unmistakable exhaust note.

Designed during Alfa Romeo’s golden era of naturally aspirated engines, this 2.5-liter V6 is an excellent choice for period-correct restorations, engine replacements, or enthusiast projects seeking authentic Italian performance and heritage.

The AR67301 engine in the Alfa Romeo 155 2.5 V6 saloon models of the early to mid-1990s. Closely related versions of this engine were also used across other Alfa Romeo platforms of the same era, allowing compatibility with models such as the Alfa Romeo 75 2.5 V6, Alfa Romeo 90 2.5 V6, and selected Alfa Romeo GTV6 applications with appropriate mounting and drivetrain considerations. This shared Busso V6 architecture makes the AR67301 a versatile option for OEM-style replacements and classic Alfa restorations.

 Specifications, Common weaknesses and Maintenance.

From a technical standpoint, the Alfa Romeo AR67301 features a 2.5-liter 60-degree V6 configuration with an aluminum block and heads. It employs a single overhead camshaft per bank with a 12-valve layout, Bosch electronic fuel injection, and naturally aspirated induction.

Furthermore power output is approximately 165 horsepower with around 162lb-ft of torque, delivering smooth mid-range performance, strong throttle response, and refined high-rev operation that defines the Busso V6 driving experience.

As with many classic Alfa Romeo engines, also there are common weaknesses and maintenance considerations. Timing belt replacement at recommended intervals is critical, as belt failure can result in severe engine damage. Try to inspect regularly aging rubber hoses, gaskets, and cooling components to prevent leaks and overheating.

Minor oil seepage from cam covers is common with age but manageable with proper servicing. When maintained correctly, this Alfa Romeo 155 Saloon AR67301 2.5L Petrol Engine offers exceptional longevity, timeless performance, and unmistakable Alfa Romeo character.