Porsche 935 engine case for sale

Porsche 935 engine case for sale

Product Overview

For sale is a genuine Porsche 935 factory 3.2-litre engine case, carrying a 1979 date code — placing it firmly within the most celebrated and competitive period of the 935’s factory and privateer racing history. This case has been professionally restored by Speedsportz Porsche, a highly regarded Porsche specialist based in the United States with extensive experience in the preparation and restoration of period racing cases at this level.

The restoration has been carried out to a thorough and methodical standard: the case was fully disassembled, chemically cleaned, vapour blasted, dimensionally measured, and crack tested before being reassembled with all new engine plugs, new studs throughout, and new factory-specification oil squirters. The case is now in a state of verified structural and mechanical integrity and is ready for immediate assembly into a complete 935 engine build.

Case Specification & Restoration Summary

Restoration Process – Step by Step

The following restoration procedure was carried out by Speedsportz Porsche prior to this case being offered for sale:

1. Full disassembly — the case was completely stripped of all internal and external components, fasteners, and fittings before any inspection or treatment commenced
2. Chemical cleaning — all passages, galleries, and surfaces were chemically cleaned to remove decades of accumulated oil residue, contamination, and debris from competition use
3. Vapour blasting — the case was vapour blasted throughout, restoring the surfaces to a clean, consistent finish appropriate for a precision engine component
4. Dimensional measurement — all critical bearing bores, case surfaces, and mating faces were measured and recorded to confirm the case is within acceptable tolerances for a reliable engine build
5. Crack testing — a professional crack test was performed on the entire case; no cracks were found
6. New engine plugs — all engine plugs were replaced with new items as part of the reassembly process
7. All new studs — every stud in the case was replaced with new specification fasteners throughout
8. New factory oil squirters — factory-specification under-piston oil squirters were fitted new as part of the restoration
9. Reassembly — the case was reassembled to a clean, ready-to-build standard, requiring no further preparation before engine assembly can commence

About the Porsche 935 Engine Case

The Porsche 935 is widely regarded as one of the most successful and iconic GT and endurance racing cars in the history of the sport. Developed from the 930 Turbo road car under FIA Group 5 regulations, the 935 dominated endurance racing from its introduction in 1976 through the early 1980s — winning the 24 Hours of Le Mans outright in 1979 and accumulating victories at virtually every major circuit and endurance event of its era.

The flat-six turbocharged engine at the heart of the 935 was developed progressively throughout this period, with displacement increasing from 2.85 litres through to 3.2 litres in factory and privateer development. The 3.2-litre case, dating to 1979, represents the engine specification deployed during the most dominant period of the 935’s factory competition history — the year in which Klaus Ludwig and the Whittington brothers won Le Mans outright in the Kremer K3.

Factory 935 engine cases are not interchangeable with standard 930 or 911 production cases in all respects — the factory race cases were produced to tighter tolerances, with specific features and dimensional characteristics that reflect their purpose-built competition application. A genuine factory 935 case with a confirmed period date code is a foundational component whose authenticity and correctness cannot be replicated by using a modified production unit.

About Speedsportz Porsche

Speedsportz Porsche is a respected Porsche specialist based in the United States, with an established reputation for the preparation, restoration, and racing of historic and competition Porsche machinery. Their involvement in the restoration of this case — carrying out the full disassembly, inspection, vapour blasting, crack testing, measurement, and reassembly process — provides the buyer with a known and credible source of provenance for all work completed. Speedsportz’s familiarity with the specific requirements of 935 and period Porsche race engine casework is directly relevant to the quality and accuracy of the restoration carried out here.

Ideal For

• Porsche 935 engine restoration and rebuild projects requiring a correct, period factory case
• Historic endurance racing competitors building or maintaining a 935 engine programme
• FIA-regulated historic motorsport classes specifying period Porsche 935 specification
• Collectors restoring a 935 to factory or privateer competition specification
• Engine builders requiring a fully restored, measured, and verified 935 case as the foundation for a complete build
• Museums and private collections seeking a documented, correct-code 935 component

Purchasing & Enquiries

This Porsche 935 factory 3.2-litre engine case is offered for private sale. The case carries a 1979 date code and has been professionally restored by Speedsportz Porsche in the USA. It is crack tested, dimensionally measured, fitted with all new plugs, studs, and factory squirters, and is ready for immediate assembly. Inspection is welcomed prior to purchase.