Want to make your motorcycle Stupid Fast? Brock's Performance carries engine components that move air more efficiently, support cleaner tuning, and unlock real power on sportbike and V-twin platforms. Shop velocity stacks, camshafts, PAIR block-off plates, nitrous components, oil system upgrades, and the supporting parts that hold a serious engine build together for the street, the track, and the strip.
Choosing the Right Engine Performance Upgrade
The right engine upgrade depends on what you're chasing. Riders pursuing better throttle response and intake efficiency usually start with velocity stacks and air box work, relatively simple modifications that match well with an exhaust and tune. Anyone running an aftermarket exhaust should be installing PAIR block-off plates, which prevent fresh air from entering the exhaust ports and eliminate the popping and lean conditions that come with PAIR-equipped bikes. Riders building for the track or the strip step up to camshafts for revised valve timing and lift, nitrous systems for on-demand power gains, and the supporting components, oil coolers, case savers, and upgraded shift hardware needed to keep a high-output engine reliable.
Airflow, Tuning, and Engine Reliability
Engine performance isn't a one-part fix; it's a system. Moving more air through the intake (velocity stacks, air filters, airbox modifications) gives the engine more to work with, but only delivers power once the fuel and ignition map are updated to match. Block-off plates and supporting tuning components clean up the signals the ECU and exhaust see, so the bike runs the way the new combination intends. And when output climbs, reliability components, case savers, upgraded oil filtration, quality spark plugs, and proper engine oil become the difference between a fast bike and a fast bike that stays running. Brock's stocks engine components across all three areas because that's how a real performance build actually comes together.
Shop Engine Components by Type
Browse engine components by category to find the right upgrades for your motorcycle and performance goals.
- Camshafts & Related Components: Performance camshafts and related hardware for riders building serious engines for race-day power
- PAIR Block Off Plates: Seal the PAIR ports on the cylinder head to eliminate exhaust popping, lean conditions, and tuning headaches that come with PAIR-equipped bikes
- Velocity Stacks: Direct intake airflow with minimal turbulence for sharper throttle response and improved top-end power
- Oil System Components: Oil filters, relocator kits, and oil system upgrades for cleaner maintenance access and consistent oil flow under hard use
- Nitrous Components: Precision nitrous showerheads and delivery components for accurate fuel and nitrous metering on bottle-fed builds
Additional Engine Components
Complete your setup with additional engine-related products and supporting components for maintenance, reliability, and performance applications.
- OEM Parts: Replacement components for specific motorcycle applications
- Spark Plugs: Supporting ignition performance and routine maintenance
- Engine Oil: Engine oils designed for performance and protection
- Additives: Supporting products designed for maintenance and engine care
- Shift Shafts & Starter Pins: Replacement and supporting drivetrain-related components
- Shift Linkages: Upgrade and replacement linkage components
- Transmission Bearings: Bearings designed to support drivetrain operation and reliability
- Air Shifter Components: Components used in air shifter systems for racing applications
- Case Savers: Protective components designed to help reduce damage from chain failures
FAQs
What do motorcycle velocity stacks do?
Velocity stacks help direct air into the intake tract with minimal disruption, supporting airflow efficiency and overall engine performance.
What are PAIR block-off plates used for?
PAIR block off plates block the air ports on the cylinder head cover to prevent unwanted air from entering the exhaust stream. They are commonly used to reduce exhaust popping and support proper tuning.
Do velocity stacks improve motorcycle performance?
Yes, velocity stacks can improve motorcycle performance by optimizing airflow into the engine. By helping smooth and direct incoming air more efficiently, velocity stacks can increase airflow velocity and improve throttle response, power delivery, and overall engine efficiency.
What does a motorcycle camshaft upgrade do?
Camshaft upgrades can change valve timing characteristics and are often used by riders looking to improve performance for specific riding or racing applications.
Are engine modifications better when combined?
Many engine upgrades work together as part of a complete performance setup, with airflow, tuning, and supporting engine components often complementing one another.
Why source engine parts from Brock's Performance?
Brock's has been building, breaking, and refining high-output sportbike engines for more than 40 years. The components on this page are the ones our team has run on our own race and customer builds, picked because they work, not because they fill a catalog slot.
Need help choosing the right engine upgrade?
If you're not sure what fits your build or how parts pair together, our team has answered the question before and can help you avoid the expensive mistakes. Our team is here to help. Email us at sales@brocksperformance.com, click the chat button at the bottom of the screen, or browse the knowledge base under Support at the top of the page.