Air-cooled Porsche engines are engineering marvels, but after decades on the road, even legends wear down. At Auto Engineering in Lexington, MA, we specialize in full and top-end engine rebuilds for classic Porsche models, including the 911, 912, 964, and 993.
When to Consider an Engine Rebuild
If you’re experiencing any of these issues, it might be time to consider an engine rebuild:
- Excessive Oil Consumption
- Blue Smoke from the Exhaust
- Loss of Compression
- Knocking or Rattling Sounds
- Head Stud Leaks
- Mileage History Over 120,000 Without a Rebuild
What’s Included in a Porsche Engine Rebuild
- Cylinder head inspection and reconditioning
- New pistons, rings, and bearings
- Camshaft upgrades or replacements
- Valve jobs and guide replacement
- Full reseal with modern hardware
- Engine cleaning, magnaflux, and case prep
Full vs. Top-End Rebuild
- Top-End: Focuses on heads, pistons, timing chain, valves
- Full Rebuild: Also addresses crankshaft, bearings, oil system, and engine case halves
Performance & Preservation Options
We offer:
- High-performance upgrades (cams, compression, headers)
- Factory-spec rebuilds for collectors
- Long-life upgrades like case savers and oil bypass mods
Thinking of refreshing your 911 engine? Talk to the specialists. Learn more on our Air-Cooled Porsche Repair page.
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Chris Robinson2024-04-03The best around![]()
Michelle Sidel2024-03-27Amazing experience at AE! Kind, fair and honest- will be only using AE for my cars. Thanks!![]()
Dylan Bruce2024-03-27Rick and the team at AE have been super knowledgeable and helpful during my time with them servicing an '08 Audi R8. I can't think of a better group to have as a resource in the Boston area. Would highly recommend working with them, especially for any tricky problems or higher end vehicles, but I know they do a great job with standard maintenance and your daily driver as well!![]()
J Geise2024-03-19Shaun and team are experienced, attentive, and responsive - my 645 ci is in really good hands.![]()
Jasmine Kardani2024-02-29Amazing to work with!![]()
Bryan Calleja2024-02-23Amazing service!!!!![]()
Kinan Faham2024-02-23I have been bringing my cars to AutoEngineering for years both for regular maintenance and performance tuning. The AE team meets expectations on all levels. Everybody demonstrates professionalism, expertise, passion for the craft, kindness, humor, honesty and quality. Moreover, the AE team is accommodating when making appointments. When you walk into the shop, you will feel the Adrenaline rush through your veins as you get surrounded by the Audi R8s and RSes in the waiting area. You will also get intoxicated by the [lovely] sounds of German cars going in and out of the shop all day long. AE is a true gem in the greater Boston area. Huge shoutout to everyone on the team.![]()
Christopher Alonzo2024-02-19AE is only shop you should be taking your German car to in the area. Whether you’re an enthusiast or someone who wants a reliable shop to help you maintain your Audi, Volkswagen, Porsche, BMW, or Mercedes. Auto engineering is your one stop shop. From regular maintenance to complete engine overhauls or even performance/track day repairs or prep, Rick and his team will get you the right person, the best components, and the best results at a price that will make the stealership service departments obsolete.
Schedule your next service appointment with us right online and save yourself time. Fill out the form and let us know what you are looking to get done and when!
FAQs About Porsche Engine Rebuilds
Q: How long does a full rebuild typically take?
A: Depending on parts availability and scope, anywhere from 4 to 8 weeks.
Q: Is it better to rebuild or swap the engine?
A: Rebuilding preserves originality and long-term value—especially for classic Porsche collectors.
Q: What’s the average lifespan of a rebuilt air-cooled engine?
A: With proper care, a rebuilt Porsche engine can last 100,000+ miles.
Q: Can I add power upgrades during a rebuild?
A: Absolutely. We offer performance cams, upgraded pistons, and tuning for street or track use.
