Hand-Built Engines
CRAFTED WITH PRECISION & EXPERISE
The Engine Shed is a focal point of the company. Within a temperature and pressure-controlled environment, all engines are hand-assembled using only the finest components, many of which have been designed and developed in-house. This isn't a production line operation – every engine that leaves our workshop has been meticulously built by skilled technicians who understand that precision at the assembly stage is what separates a reliable engine from one that fails prematurely. We control every variable, from torque specifications and bearing clearances to ring gaps and surface finishes, ensuring that each build meets our exacting standards.
Whether you're looking for a stock rebuild to factory specifications, a fast road engine with improved reliability and power, or a full-blown race engine designed to withstand extreme conditions, we have the expertise and facilities to deliver. Our engine builds range from straightforward refreshes and gasket replacements through to complete ground-up builds featuring forged internals, upgraded turbochargers, uprated fuel systems, and custom camshaft profiles. We work closely with leading component manufacturers and draw on decades of combined experience to specify the right parts for your application – because there's no point fitting components that won't work together or aren't suited to how you'll actually use the car.
The Engine Team
A dedicated team of specialists monitors quality control to the highest levels. Gearboxes and differential units are also trialled and tested in the same area. Scooby Clinic has developed some of the most powerful Subaru Boxer engines ever produced in the UK and acts as a resource centre for many other tuners both in the UK and abroad.
Every engine build is subjected to rigorous quality control processes before it ever fires up. We carry out detailed pre-assembly checks, verify all clearances and tolerances, and ensure proper lubrication of critical components during the build process. Once assembled, engines are run-in and tested under controlled conditions, checking oil pressure, compression, and overall mechanical health before installation. We also provide comprehensive documentation of the build, including torque settings, component specifications, and running-in procedures, so you have a complete record of exactly what's inside your engine. It's this level of care and attention to detail that ensures our engine builds not only make power, but do so reliably for years to come.
Discuss your requirements with an experienced member of our team.
Brands we work with
Bespoke Engine Builds
We can tailor a bespoke engine build to suit your budget and performance needs. Speak to a member of our team or arrange a consultation to discuss your requirements.
Wiring Looms
Reworks of engine looms are now available, typically when a Newage engine is being transplanted to a classic including AVCS and/or Newage coil pack add-on looms as needed.
Engine looms can also be made from scratch. They are made using the OEM connectors harvested from the donor loom, and new terminals and seals but are far cheaper than a full custom loom.
Clinical Performance
NO PROBLEM
Own a performance vehicle that isn't a Subaru? No problem! Our clinical performance team has the experience and technical abilities to work on most performance vehicles.
Callum Brown
Aug 3, 2026
These guys don't mess about. They're incredibly knowledgeable and provide fantastic customer service.I took my 2007 Impreza in for a remap, and instead of just loading the map and sending me on my way, they took the time to explain a few changes that would help me get the most out of it. They booked me back in once those were sorted.When I returned, they spotted a couple more issues that weren't quite right. Rather than turning me away, they went above and beyond to get everything sorted and make sure the remap could be done properly.Top-class lads with a genuine passion for what they do. Thanks again, really appreciate all the help 👍
Lorna Stace
Jul 12, 2026
I wish there were more than 5 stars to give! Absolutely spot on service from the very start. I had been in contact with Kev for a few months, looking for a very specific Impreza, so when one came up for sale, he let me know straight away and answered my many, many questions before I went to view/collect the car, nothing was too much trouble. It was 100% worth the 600 mile round trip to get it! Stunning, well maintained and the perfect spec that I wanted. Dan took me on a decent test drive so I could actually get a proper feel for the car and know if it was right for me and answered just a few more questions 😂 I will be heading back there for servicing and any other work I want done, I wouldn't take it anywhere else now. Best car buying experience I've ever had. Thank you Kev, and Dan, for all your time and patience during the process and for giving me the chance to finally buy my dream car 😍 I couldn't be happier 🤍
Adam Ball
Jul 9, 2026
I’ve been using Scoobyclinic for years, Before I even bought my latest WRX STI, the team were incredibly helpful, taking the time to advise me on what to look out for, what potential issues to avoid, and what a fair price would be. That advice gave me the confidence to buy the right car. I’ve now owned four WRX STIs, and every single one has been to Scoobyclinic for cambelt work, servicing, or repairs. Their knowledge of Subarus is second to none, and no question is ever too trivial—they’re always happy to help and share their expertise. What has always impressed me is that, despite being genuine Subaru specialists, their pricing is extremely reasonable. You get specialist knowledge and workmanship without paying inflated specialist prices, which is becoming increasingly rare. I genuinely enjoy visiting the workshop. It’s like stepping into a living history book of Subarus, and you can immediately tell you’re surrounded by people who are passionate about what they do. The whole team are friendly, approachable, and exceptionally knowledgeable. If you own a Subaru, I can’t recommend Scoobyclinic highly enough.
Gareth Roberts
Jun 30, 2026
Very impressed. Kev and his team very welcoming and certianly know there stuff. Took the car there for a dyno run and was running as it should from factory. Honest guys definitely recommend.
Corey Summerill
May 26, 2026
Massive thanks to Kev, what a fantastic team he has put together ….. ej23 engine built with a new sc46 turbo, She’s a dream. After going else where these guys put me straight after a bad experience 👍. If you need help in having a job done correctly these are here for you .