VAC Engine Building: Precision. Power. Proven.
At VAC Motorsports, engine building isn’t just a service — it’s the heart of our identity. For over 40 years, we’ve earned global respect as the go-to authority for high-performance BMW engines. Our engines power championship-winning race teams, world-record-holding street builds, and passionate weekend warriors alike. When performance matters, professionals and enthusiasts turn to VAC.
Built with Precision, Backed by Reputation Every VAC engine is built in-house at our Philadelphia-based facility using the most advanced machining, blueprinting, and assembly techniques available. We’ve refined our process through decades of racing, dyno testing, and customer feedback — and it shows. From endurance racing to drag strips, time attack to drifting, VAC engines have consistently proven themselves at the highest levels of motorsport.
Customized to Fit Your Goals No two builds are the same. Our team works closely with each customer to understand their goals — from horsepower targets and fuel type, to class restrictions, track demands, and driving style. Whether you’re looking for a reliable daily driver with upgraded internals or a 1,200+ HP turbocharged monster, we build each engine to suit the demands of the vehicle and the driver behind it.
Our comprehensive build process includes:
Specialization in BMW’s Finest: S54, S65, S85 and Beyond VAC is widely known for our deep expertise in BMW’s most legendary engines — especially the S54, S65, and S85 platforms. From high-revving naturally aspirated builds to fully forged setups designed for boost, our knowledge of these engines is unmatched. We’ve built hundreds of S54s that dominate road courses, S65s that scream to 9,000 RPM, and S85s that hold up to real motorsport abuse.
Looking for reliability at the limit? Our proprietary upgrades and custom components — like VAC rod bearings, head studs, and oil system enhancements — are engineered to solve the known weak points of these engines while extracting maximum performance.
Trusted by Race Teams, Tuners & Performance Shops Worldwide Top-level race teams, tuning shops, and independent builders across the globe rely on VAC-built engines. We provide the quality, consistency, and support they need to compete and win. Our motors have competed in everything from IMSA to Global Time Attack, Formula Drift to standing mile events.
The Choice for High-Horsepower BMW Builds VAC engines are engineered to hold power — real power. We’ve built engines making over 1,200 horsepower reliably. Whether it’s an S58 with closed-deck sleeves and custom forged internals or a twin-turbocharged S85 ready for airstrip assault, we know how to extract performance while keeping reliability in check.
When you’re ready to start your build, complete our VAC Engine Build Request Form to give us an idea of your platform, budget, power goals, and intended use. Our team will guide you every step of the way to deliver an engine that exceeds expectations — on and off the track.
VAC Motorsports — Engineered for the Driven.
At VAC Motorsports, engine building isn’t just a service — it’s the heart of our identity. For over 40 years, we’ve earned global respect as the go-to authority for high-performance BMW engines. Our engines power championship-winning race teams, world-record-holding street builds, and passionate weekend warriors alike. When performance matters, professionals and enthusiasts turn to VAC.
Built with Precision, Backed by Reputation Every VAC engine is built in-house at our Philadelphia-based facility using the most advanced machining, blueprinting, and assembly techniques available. We’ve refined our process through decades of racing, dyno testing, and customer feedback — and it shows. From endurance racing to drag strips, time attack to drifting, VAC engines have consistently proven themselves at the highest levels of motorsport.
Customized to Fit Your Goals No two builds are the same. Our team works closely with each customer to understand their goals — from horsepower targets and fuel type, to class restrictions, track demands, and driving style. Whether you’re looking for a reliable daily driver with upgraded internals or a 1,200+ HP turbocharged monster, we build each engine to suit the demands of the vehicle and the driver behind it.
Our comprehensive build process includes:
- Detailed consultation and planning
- Full inspection and teardown
- Precision machining and blueprinting
- Balanced rotating assembly
- Race-spec head porting and valve work
- Professional assembly in our clean room
- Dyno break-in and tuning available
Specialization in BMW’s Finest: S54, S65, S85 and Beyond VAC is widely known for our deep expertise in BMW’s most legendary engines — especially the S54, S65, and S85 platforms. From high-revving naturally aspirated builds to fully forged setups designed for boost, our knowledge of these engines is unmatched. We’ve built hundreds of S54s that dominate road courses, S65s that scream to 9,000 RPM, and S85s that hold up to real motorsport abuse.
Looking for reliability at the limit? Our proprietary upgrades and custom components — like VAC rod bearings, head studs, and oil system enhancements — are engineered to solve the known weak points of these engines while extracting maximum performance.
Trusted by Race Teams, Tuners & Performance Shops Worldwide Top-level race teams, tuning shops, and independent builders across the globe rely on VAC-built engines. We provide the quality, consistency, and support they need to compete and win. Our motors have competed in everything from IMSA to Global Time Attack, Formula Drift to standing mile events.
The Choice for High-Horsepower BMW Builds VAC engines are engineered to hold power — real power. We’ve built engines making over 1,200 horsepower reliably. Whether it’s an S58 with closed-deck sleeves and custom forged internals or a twin-turbocharged S85 ready for airstrip assault, we know how to extract performance while keeping reliability in check.
When you’re ready to start your build, complete our VAC Engine Build Request Form to give us an idea of your platform, budget, power goals, and intended use. Our team will guide you every step of the way to deliver an engine that exceeds expectations — on and off the track.
VAC Motorsports — Engineered for the Driven.
