THE COMPLETE FOUR-CAM ENGINE
New Fuhrmann four-cam engines manufactured by Retro-Design 3D for classic Porsche cars and replica projects. Discuss Type 547, 692 or 587, the ancillaries you need and the scope of supply for your build.
Plan an engine projectPorsche 4-Cam, also written 4cam or four-cam, refers here to the Fuhrmann engine with four camshafts driven through bevel-drive shafts. We manufacture new engines and agree the specification for each project.
Your configuration
Looking to buy a four-cam engine for a Porsche 356 Carrera, 550 Spyder or a replica project? The car, engine type and intended use define the requirements. Together we establish the configuration.
INSIDE AN ENGINE PROJECT
A 692/3A on the test bench, built using Retro-Design 3D components. The first recording shows the components working together in a running engine. Two further workshop videos offer different perspectives with original sound.
Our July 2026 project documentation shows which decisions need to be considered together before a build. It records a planning stage and is not attributed to the archive video.
FOR REPLICA BUILDS
We offer complete, newly manufactured four-cam engines and individual engine components for replicas of classic Porsche cars. Whether you are building a replica as a private project or working as a manufacturer or workshop, we discuss the engine configuration with you.
For a replica, the actual build, interfaces and available space define the requirements. We therefore review the chassis, transmission, engine mounting, cooling and ancillaries together for your individual vehicle.
For an initial discussion, send details of the vehicle concept, chassis and transmission, plus photographs or dimensions of the engine bay. Include the intended use and current project stage. These details help us establish technical suitability, specification and scope of supply.
Enquire about a replica engineFrom idea to order
Tell us about the vehicle, engine type, objective and current situation.
We agree on technical requirements, interfaces and scope of supply.
You receive the information needed to decide: configuration, price and lead time.
Crankcases, cylinder heads, drive components or oil systems: find the engine part by assembly and discuss the specification with us.
Porsche 356 Carrera spare parts ↗FOUR-CAM ENGINE QUESTIONS
Four-cam refers to four camshafts. The historic Porsche Type 547 engine was developed by Ernst Fuhrmann and is also known as the Fuhrmann engine. It is associated with cars including the 550 Spyder and 356 Carrera. Historical background from Porsche.
We offer complete, newly manufactured four-cam engines. Before preparing a proposal, we discuss which ancillaries are included and which existing components you wish to retain. Tell us the vehicle, engine type and installation details. The scope of supply is agreed in writing; a product photograph alone does not define it.
Yes. Our component programme includes crankcases, cylinder heads, crankshafts and parts of the bevel-shaft drive. The specification is reviewed against your individual engine project. Porsche 4-Cam replacement parts catalogue.
Price and lead time depend on configuration, ancillaries and the agreed scope of supply. When comparing engine proposals, the starting condition also matters: a rebuild restores an existing engine, while the offer described here is for a newly manufactured four-cam engine. Following the technical review, we provide the specific details for your project.
Choose the engine type in the parts finder, then select an assembly. An existing part number, marking or photograph helps identify the component. Parts without a confirmed type association are marked accordingly; we review suitability for your individual build.
Parts for Type 547 · Parts for Type 692 · Parts for Type 587
Your next project
Tell us the vehicle or application, the component you need and the quantity. A photograph or existing part number helps us get started.
Discuss your project