
Engine Development
Efficiency is power. From in-depth engineering analysis to dyno validation, our engines are Race Tested and Championship Proven. We build to win.
Four Stroke Technology
Head Porting
Our porting is all about efficiency. We want to most efficiently move air from one side of the valve to the other. We use our flow bench in conjunction with our dyno to finalize head settings that offer the biggest torque and horsepower gains possible.
Valve Seat & Guide Services
Proper valve seat profiles and sealing is necessary to make good horsepower. We ensure proper guide clearance, seat profiles, and concentricity between seat and guide to keep valves sealing perfectly.
Crank Services
From performance rods to complete crank rebuilding, precision truing and balancing. We work with top vendors like CWI, Falicon, and Carillo to offer top-notch products and coatings.
Throttle Body Mods
From taper boring and straight boring to butterfly machining and sleeving. Getting the most from your engine often requires changes to the throttle body, and we know exactly what each bike needs.
EFI Mapping & Tuning
The single best modification for modern engines. We are an authorized Athena GET ignition center and experts with PowerCommanders, Bazaaz, and OEM systems to unlock hidden power.
Camshafts & Valve Springs
Camshafts are the soul of the four stroke. We custom design and engineer our own cam profiles and valve spring combinations to match our port designs for maximum performance.
Engine Service Specifications
- 4-Stroke Head Porting
- Starting at $650
- Valve Seat Cutting
- Serdi Precision Cut
- Dyno Tuning Rate
- $250 First Hour
- $160 / Hr After
- GET ECU Re-Map
- $350
- Crank Rebuild & Balancing
- Available
- Supported Brands
- Honda, Yamaha, KTM, Kawi, GasGas, Suzuki, Husqvarna, Ducati, Triumph
Two Stroke Modifications
Scavenging System Redesign
Not all "porting" is the same. We focus on scavenging system redesign, often using epoxy to completely reshape transfer tunnels to make power where the competition can't. From mild to wild.
Advanced Head Mods
We test tirelessly to provide head arrangements with perfect squish band width, clearance, and bowl shape. Our heads cool the piston better, prevent detonation, and maximize power. O-ring conversions available.
Case Optimization
"Stuffing cases" isn't always the answer. We perform optimum case modifications developed over countless hours to suit each specific application, whether for peak HP or off-the-pipe power.
Big Bore & World class superminis
Our big bores, strokers, and supermini packages offer unrivaled performance. Send it to HP and forget about the competition. We have the fastest two strokes.
Case Machining
Case machining for clearencing or repair. Precision machining is critical for performance. We offer case boring for stroker clearance, trenching, and surface decking to ensure perfect fitment and sealing for your high-performance builds.
Two Stroke Service Specifications
- 2-Stroke Porting & Cylinder Mods
- Starting at $650
- Head Modification
- Starting at $450
- Dyno Tuning Rate
- $250 First Hour
- $160 / Hr After
- Crank Rebuild & Balancing
- Available
- Case Boring & Trenching
- Available
- Supermini Packages
- Contact for Quote
- Carburetor Boring
- $250
- Supported Brands
- Honda, Yamaha, KTM, Kawi, GasGas, Suzuki, Husqvarna, Cobra
Engine Development Consultation
Want to build your OWN motor? We offer engine consultation for those who like to get their hands dirty. We can include suggestions for ignition and head settings, using our sophisticated software and real-world testing data.

Start Your Dream Build
Don't settle for stock. Use our interactive 3D configuration tool to build the ultimate engine and suspension package for your specific race needs.
Launch ConfiguratorNeed Better Handling?
Power is nothing without control. Check out our world-class suspension services. From basic rebuilds to elite works packages and trackside tuning.
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