Custom-Built 1,720cc Porsche Flat-Four Engine – Fresh 2022 Rebuild
A strong, freshly rebuilt runner for your air-cooled project. This is a custom 1,720cc flat-four engine meticulously rebuilt by the seller in 2022. Constructed using a blend of genuine Porsche case halves (including a section from a 1967 912), it features desirable performance upgrades like dual Weber carburetors, a 4-into-1 exhaust header, and a 12-volt electrical conversion. Sold as a complete, tested runner with spares, it’s an ideal “drop-in” solution for a 356, 912, or VW application.
Core Product Details:
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Engine Type: Custom Built from Porsche 616/1 & 616/36 cases
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Displacement: 1,720cc (via AA Performance Products pistons/cylinders)
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Rebuild Date: 2022
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Key Features: Weber Carburetors, 12-Volt System, 4-into-1 Header
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Case Stamping: Includes case half stamped ☆750640☆ (consistent with 1967 912)
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Condition: Rebuilt & Tested. Compression results available.
Build Specifications & Provenance
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Foundation: Built using a three-piece crankcase combining two Type 616/1 halves and a section from a 1967 Porsche 912 (case stamp ☆750640☆).
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Rebuild Work (2022): Top end cleaned and reassembled in stock configuration. Features new 1,720cc cylinders, pistons, and rings from AA Performance Products.
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Performance Upgrades:
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Induction: Dual Weber carburetors with air cleaner housings.
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Exhaust: Performance 4-into-1 exhaust header.
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Electrical: Converted to a 12-volt system for modern reliability.
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Verification: Compression test results are provided, offering tangible proof of the engine’s mechanical health.
Features & Benefits
Fresh, Documented Rebuild (2022): A recent professional rebuild offers peace of mind and immediate usability, avoiding multi-year wait times for an engine shop.
Performance-Enhanced: The 1,720cc displacement, Weber carburetors, and free-flowing header provide a noticeable power increase over a stock 1.6L engine.
Complete & Ready to Run: Includes carburetors, header, clutch, flywheel, and engine tins. The 12V conversion makes it compatible with modern electrical systems.
Includes Valuable Spares: Comes with a set of uninstalled 6-volt ignition components, adding value for purists or those with other projects.
Tested & Transparent: The provision of compression test data is a significant trust-builder, demonstrating the seller’s confidence.
Technical Notes & Compatibility
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What’s Included: The complete engine assembly, clutch, flywheel, tins, AND the extra 6-volt ignition components.
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Electrical System: Currently configured for 12-volt operation. The included 6-volt parts allow for reversion if desired.
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Status: Sold as a recently rebuilt, complete running engine. It has not been installed or run since the 2022 rebuild.
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Ideal For: A 1967-1969 Porsche 912 (as a robust, non-numbers-matching replacement), a 356 project, or a high-end Volkswagen Type 1, 2, or 3 conversion.
Ella Watson (verified owner) –
Bought parking sensors and they function perfectly.Installation was simple plug and play.Matched paint color nicely.Very pleased with results.
Sofia Costa (verified owner) –
Bought rear subframe and alignment was perfect.Mechanic had no complaints installing it.Condition exceeded expectations.Highly satisfied buyer.
Bashir Mohammed (verified owner) –
Bought a starter relay and starting issue disappeared.Simple install with immediate results.Accurate product description.Satisfied with purchase.
Yuki Tanaka (verified owner) –
Ordered a steering column module and installation was easy.All steering controls function properly again.Seller confirmed part number compatibility beforehand.Excellent customer support.
Sekou Bangoura (verified owner) –
Ordered brake pads and discs together for a full upgrade.Braking performance improved immediately after installation.No noise or vibration while driving.Excellent value for the price paid.
Alejandro Ruiz (verified owner) –
Ordered a front bumper reinforcement bar.Part arrived straight with no bends or scratches.Fitment aligned perfectly during installation.Professional service overall.
Ella Watson (verified owner) –
Ordered a front bumper reinforcement bar.Part arrived straight with no bends or scratches.Fitment aligned perfectly during installation.Professional service overall.
Emily Davis (verified owner) –
Ordered AMG side vents and appearance improved instantly.Fitment was exact without modification.Paint finish looked excellent.Highly recommend.
Claude Perrier (verified owner) –
Ordered ignition coils and engine misfires disappeared.Idle became smooth immediately.Shipping was quick and secure.Great value for money.
Sebastien Leroy (verified owner) –
Ordered brake pads and discs together for a full upgrade.Braking performance improved immediately after installation.No noise or vibration while driving.Excellent value for the price paid.
Alicia Navarro (verified owner) –
Ordered brake pads and discs together for a full upgrade.Braking performance improved immediately after installation.No noise or vibration while driving.Excellent value for the price paid.
Anna Svensson (verified owner) –
Bought rear camera module and display works perfectly.Image quality is clear again.Installation was simple.Great replacement part.
Joachim Becker (verified owner) –
Bought rear camera module and display works perfectly.Image quality is clear again.Installation was simple.Great replacement part.
Emma Johnson (verified owner) –
Paint finish looked factory original.Delivery arrived earlier than expected.Excellent buying experience.
Holly Parker (verified owner) –
Ordered side skirts and the finish exceeded expectations.Paint quality matched closely with my car color.Easy installation with original mounting points.Very pleased with this purchase.
Fatima Zahra (verified owner) –
Ordered a complete cooling fan assembly.Engine temperature stays stable even in traffic.Installation required no modifications.Great quality component.
Fatou Diarra (verified owner) –
Purchased AMG badges and they look authentic.Adhesion was strong and secure.Great finishing quality.Nice cosmetic improvement.
Amadou Ba (verified owner) –
Ordered a power steering pump and steering feels light again.No leaks or noise after installation.Part arrived clean and ready.Highly satisfied customer.
Anders Eriksson (verified owner) –
Ordered engine mounts and vibrations disappeared completely.Driving feels comfortable again.Packaging was excellent.Reliable purchase.
Adam Nowak (verified owner) –
Ordered engine mounts and vibrations disappeared completely.Driving feels comfortable again.Packaging was excellent.Reliable purchase.
Idris Elba (verified owner) –
Ordered door handles and finish matched perfectly.Installation was straightforward.Parts looked brand new.Very satisfied customer.
Patricia Lopez (verified owner) –
Bought seat control module and adjustments work again.Installation was quick and simple.Seller communication was helpful.Great experience overall.
Giulia Conti (verified owner) –
Engine wiring harness solved multiple electrical faults instantly.All connectors were intact and clean.Part looked professionally inspected before shipping.Very impressed with the quality control.
Elif Kaya (verified owner) –
Paint finish looked factory original.Delivery arrived earlier than expected.Excellent buying experience.
Alioune Sow (verified owner) –
Bought a starter relay and starting issue disappeared.Simple install with immediate results.Accurate product description.Satisfied with purchase.
Fernando Lopes (verified owner) –
Engine wiring harness solved multiple electrical faults instantly.All connectors were intact and clean.Part looked professionally inspected before shipping.Very impressed with the quality control.