Engine Overhaul & Rebuilding Perth

Your engine is the beating heart of your vehicle, and when performance matters, every detail counts. At GMW Perth, we design and build custom high-performance engines delivering exceptional power, durability and Improve efficiency, restore performance and extend the life of your engine with precision overhauls and rebuilds from the specialists at GMW Perth. Whether you’re chasing more power or improved reliability, we tailor every build to align with your driving goals. . Whether you’re looking to dominate the track or elevate everyday performance, we’re here to bring your vision to life.

Book Your Engine Rebuild Consultation Today

Precision Engine Overhaulsk Restore lost power and fuel economy with factory-spec rebuilds or high performance upgrades.

High Performance Rebuild Options Perfect for modified vehicles and motorsport applications.

Expert Technicians Specialists in BMW-powered, luxury and high performance vehicles.

Bring Your Engine Back To Life With Expert Rebuilding

If your vehicle is experiencing power loss, poor fuel economy or mechanical wear, it may be time for a full engine overhaul. At GMW Perth, our rebuilding services are designed to restore the performance of your engine, or take it to the next level with selected performance enhancements. Whether your goal is reliability for everyday driving, or you’re chasing track-ready output, our expert service team deliver uncompromising quality in every build.

Reclaim Performance With A Precision Rebuild

Symptoms like engine knocking, smoke, overheating or high oil consumption are often reflective of deeper mechanical issues. Left unchecked, these signs can lead to major engine failure.

At GMW Perth, we strip the engine down to its core, inspecting every component and rebuilding it to meet or exceed factory standards. Our custom approach allows for OE-quality restorations or performance-focused enhancements, depending on what your driving goals are.

Why Choose GMW Perth For Engine Overhauls & Rebuilds?

We combine expert craftsmanship with industry-leading diagnostic tools to ensure your rebuild is performed with unmatched precision and care.

Precision Engineering

Our technicians have years of precision engine building and tuning experience.

High Performance Expertise

Suitable for street builds, track focused upgrades or modified daily drivers.

Brand Specific Knowledge

Highly experienced with BMW-powered marques and performance vehicles.

OE & Performance Parts Available

Genuine or upgraded components to align with your vision.

Transparent Quotes & Timelines:

We offer honest advice, clear pricing and realistic project schedules.

Schedule A Free Engine Assessment

Our Engine Overhaul & Rebuilding Services

Complete Engine Overhauls

Full disassembly, cleaning, inspection and reassembly using new or reconditioned components for like-new performance output.

Cylinder Head & Valve Repairs

We restore airflow and compression with expert machining, valve reseating and gasket replacements.

Piston, Crankshaft & Connecting Rod Replacement

We replace worn internals with OE or forged performance components for improved durability and power delivery.

Engine Block Reconditioning

Includes resurfacing, reboring, honing and reinforcement to restore structural integrity and improve long term reliability.

Benefits of A Professional Engine Overhaul

Rebuilding your engine is an investment in performance and peace of mind. Here’s what you can expect from an engine overhaul:

Restored Power & Efficiency

Bring your engine back to its original performance level.

Enhanced Engine Life

Reduce wear and extend reliability with expertly rebuilt components.

Improved Fuel Economy

Enhance combustion and airflow for cleaner, more efficient operation.

Performance Upgrades Available

Add power with forged internals, tuning or improved cooling.

Boosted Resale Value

A rebuilt engine can significantly improve your vehicle’s value in the market.

See What Our Clients Say

Isaac B

Fantastic, knowledgeable, informative, team at GMW. Had my 3series with them for some work and I can’t think of a single negative thing to say. Kept me in the loop at all times and made sure that the work they did is to the highest of quality and satisfaction. Any questions I had were answered with confidence and reassurance. Can only recommend for any BMW OR MINI work you need.

Jeremiah O

Great service from the mobile servicing team at GMW. Josh identified the problem and sourced all the parts to have the car running again by the end of the day. Excellent service and great communication!

William G

True enthusiasts and the coolest guys who know everything about BMW machines. After ‘shopping around’ other mech shops to try and fix my fuel delivery issue, Douglas and team at German Motor Werks identified and fixed the issue with confidence, and that was extremely reassuring. I wouldn’t take my BMW to anywhere else any longer! Cheers

Nick M

Just had the third service with GMW on our 2018 M4 Competition. These guys are the best. No birds, just great service and sensible advice, and excellent value. Highly recommended.

James M

First time taking my BMW in and I couldn’t have been happier with the work done. Douglas and the team provided an in-depth explanation, including photos of every step of the repair that was completed, and was more than happy to take the time to explain exactly why the car had the issue. Not only this but GMW is the most professional and affordable specialist that I have gone to. I will absolutely be returning to GMW for any future work that is needed and couldn’t recommend GMW more. Thank you Douglas and the rest of the team for looking after my vehicle.

Vikki S

I cannot fault the work Josh (GMW) has done on my Mini Cooper S. This is my seventh mini and I have had some disappointing experiences with various mechanics over the years. I have found Josh to be very helpful, competent and knowledgable about minis and he explains things when I have any queries. Plus, It is very convenient to have him come to my home. I would not hesitate to recommend him to anyone with a Mini or BMW and wish I had found him before.

Sally M

Douglas and the team are excellent at what they do. Their treatment of me and my car leaves no doubt. Always up front and honest, and provide great advice. Highly recommend if you love your car and want the best care for it!

Our Rebuilding Process

We follow a structured, transparent process to ensure we deliver high quality results, every time.

Initial Consultation & Engine Inspection

Assess your engine’s current condition and discuss your performance goals.

Disassembly & Diagnostic Testing

Identifying damaged, worn or underperforming components.

Machining & Component Replacement:

Resurface and recondition parts or replace with OEM components or performance upgrades.

Reassembly & Calibration

Precision reassembly and performance tuning for optimal operation.

Final Testing & Customer Reviewion & Delivery

Real-world road testing and quality checks before we hand your keys back to you.

Transparent Pricing For Engine Rebuilds

Each rebuild is tailored to your engine’s condition and your desired outcome. Whether you need a factory-spec restoration or a full performance upgrade, we’ll provide a detailed quote with clear pricing – no hidden costs or guesswork.

Frequently Asked Questions

If your car is consuming excess oil, producing smoke, running rough or losing power, your engine may need a rebuild. We’ll assess the condition of your vehicle and offer honest recommendations to restore performance.

Yes, we can incorporate performance upgrades including forged pistons, race camshafts and ECU tuning into your engine rebuild. We’ll tailor all upgrades to align with your power and reliability vision.

Rebuild timelines typically range from two to four weeks depending on your engine type, required machining and the availability of parts. Once we have inspected your engine and understand what you are envisioning, we’ll provide a clearer timeline.