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.
Gary Bagshaw
Jul 16, 2025
Update: So been back to the clinic for a brake upgrade and while there they had a look round it for me and found a couple of bits needed doing to save me bigger costs in the future. All repaired to the highest of standards thanks for saving me again guys keep it up. Would recommend scooby clinic in an heartbeat I had a full engine build here and I'm very impressed with the quality of the build and the care they took with my pride and joy. Very very knowledgeable specially with Subaru's. kev put my mind at ease at every stage and the lads working there was also very helpful kept me updated from start to finish. Will be back 100%
Wesley Turner
Aug 20, 2024
Excellent customer service from the start, been a long project but come a long way as well, can't fault anything at all. Kev has been really helpful throughout, with comms and work done, Will be going back again in future that's for sure!! Cheers for all the help guys, appreciate it. 7 Year + Update: it's been over 7 years and I'm still with these guys, they've taken care of so many issues for me and I still won't go to anyone else for work even though visiting them is a 2.5 hour drive away. Their customer service is second to none and they treat me like fanily every time I come in. They've gone ABOVE AND BEYOND what any normal garage would put up with, so much so words genuinely can't describe how they've helped me through rock bottom times and not judged me or said a word about the state of my car, they were there for me and let me take my time sorting things out. I wouldn't recommend anyone else when it comes to who I go to work work on my scooby. My most heartfelt thanks to the whole team there, they work wonders and have a passion for subarus which I hope keeps shining as long as we can keep them running as I love them just as much. I'm sorry for putting you guys through what I have especially the apprentice that guys a freaking OG, he deserves a pay rise, but as well thank you for helping me keep my bucket of bolts going over the past near decade. You'll see me for as long as I can keep my Scoob going, thank you. Ps - don't tell anyone Dan makes a mean coffee or he'll kill me 👀😄
Josh Lewins
Aug 12, 2024
Ever since owning a Subaru I've always taken it staight to these guys if I need any work or simply some advice. After a recent accident, they repaired my car to a super high standard I couldn't have asked for more! The best subaru specialist in the UK
Mark Lee
Sep 26, 2023
After recently purchasing a car I took it to scoobyclinic for an oil service and health check. The service was amazing and they really do have the right staff there. I asked a million questions and the staff was more than happy to offer advice. I only found out when I was there that they offer many services including engine and body work. I can not recommend them enough for your Subaru requirements.
Dylan Callender
Jan 19, 2021
Had them install a Syvecs Ecu and a fuel pressure regulator. I've had a fully rebuilt engine last year and I seemed to have a lot of hesitation around 3000rpm and mapped a few times didn't seem to fix my issue. Anyway, I decided to go for it and get Scoobyclinic to install a new ECU for me. It was my first time with them and I think they will be the garage I go to for all my future work/mods. Kev the owner kept me updated throughout the week and any new work that was carried out. They did come across a slight issue with my radiator where it was leaking and cracking and advised me that it would be best to replace. The car runs very nice so far. They guided me through everything that had been done and gave me some advice for future mods if I decided to take the car further (which I always will). They really looked after me and service was brilliant, worth the 90 minute drive for the service they provide.