Porsche 928 Engine

The Porsche 928, a front-engine Gran Turismo, marked a new chapter in the German brand’s history with its all-aluminum V8 engine. The M28/02, a 4.5-liter variant, powered the early 928 models from 1978 to 1982. This 16-valve engine was designed to deliver a balanced combination of performance and grand touring comfort. It was equipped with a Bosch K-Jetronic fuel injection system, which was an advanced technological achievement of its time. The European version produced approximately 240 horsepower, a highly respectable figure in that era.

Our work:

This Porsche 928 M28/02 engine required a comprehensive restoration when it arrived at our workshop. Our process included the following steps:

• Complete Disassembly & Inspection: We meticulously disassembled the engine, documenting every step and assessing the condition of each component.

• Cleaning & Machining: The engine block, cylinder heads, and other components were thoroughly cleaned and machined to ensure proper tolerances and fitment.

• Refurbishment or Replacement of Parts: Cylinder heads were resurfaced. All valve guides were replaced. Valve seats were ground and matched to the valves. The crankshaft journals were polished. The crankshaft seal running surface was reground. All bearings and piston rings were replaced.

• Fuel System Restoration: The Bosch K-Jetronic fuel injection system was carefully inspected and restored to ensure optimal performance and efficiency.

• Aesthetic Refinement: To enhance the engine’s appearance, aluminum components were sandblasted, and all fasteners were galvanized for a clean and durable finish.

• Reassembly: The engine was carefully reassembled, following factory specifications to ensure precision and reliability.

This engine is now ready to provide many more miles of driving enjoyment. Our focus on quality workmanship and attention to detail ensures that this classic engine will continue to perform reliably for years to come.