Ready to take your Harley engine to the next level? Whether you're building a custom masterpiece or simply fine-tuning your bike for maximum performance, J&P Cycles has the parts and expertise you need to get it done right. With years of experience in the world of Harley-Davidson mechanics, we know exactly what works, what lasts, and what will give your bike that extra boost in performance and style.

Essential Engine Components for Harley-Davidson Motorcycles

At J&P Cycles, we carry a full range of engine components to help you with everything from simple repairs to full-blown performance upgrades. Here’s a breakdown of what you’ll find:

Cylinder Heads - The heart of your engine's airflow, cylinder heads are crucial for performance. Upgrading to performance cylinder heads can increase your bike's horsepower and torque by optimizing airflow and combustion. We offer heads designed for both Twin Cam and Evolution engines, with options from brands like S&S Cycle and V-Twin Manufacturing. High-flow heads help boost power, improve throttle response, and even make your engine run cooler.
Camshafts -For performance-minded riders, upgrading your camshaft is one of the easiest ways to unlock more power. A new performance camshaft can change your engine's powerband, adding more low-end torque or top-end horsepower. Whether you're looking for better acceleration or a smoother cruising ride, cams from S&S, V-Twin, and Andrews Products can make a huge difference.
Pistons & Cylinders - Want to up the displacement of your Harley engine? Consider upgrading to a big bore kit. Bigger pistons and cylinders will increase your engine’s cubic inch size, boosting both torque and horsepower. Whether you're running a Sportster or a Softail, a piston upgrade can bring serious performance gains. We offer top-notch piston kits and cylinder kits from trusted brands like Wiseco and S&S to help you get more power without compromising reliability.
Valves & Springs - If you’re looking to rev your engine higher and faster, stronger valves and springs are a must. Performance valves (made of steel or titanium) help your engine intake more air, while heavy-duty valve springs keep the valves in place at high RPMs. If you’re adding performance cams or boosting your compression, upgrading your valves and springs ensures smooth operation at all speeds.
Crankshafts - A new crankshaft can help add more torque and strengthen your bottom-end, especially when you’re going for higher performance. If you're building a motor to handle serious horsepower, a performance crankshaft will ensure the engine stays balanced and durable. We carry crankshafts from S&S and RevTech that are precision-balanced and ready for your custom build.
Engine Gaskets & Seals - When upgrading your engine, don’t forget to pick up high-quality gaskets and seals. Whether you’re replacing a leaking gasket or assembling a new motor, having the right seals ensures that your engine runs smoothly without any leaks or failures. We’ve got complete gasket kits for all your engine needs.
Oil Pumps - An upgraded oil pump ensures that your engine stays well-lubricated, especially under high-performance conditions. Whether you’re doing a full rebuild or just replacing a worn-out part, upgrading to a high-flow oil pump can extend the life of your motor and improve oil pressure.

Why Shop Engine Components at J&P Cycles?

At J&P Cycles, we’ve been working on Harleys for decades, and we know the ins and outs of every engine type—from Sportsters to Touring bikes. We’re not just selling parts; we’re sharing our knowledge. Our team is always here to help you choose the right components for your bike and offer expert advice on installation and performance tuning.
Whether you're rebuilding your engine from scratch, adding some serious horsepower, or just replacing a worn-out part, J&P Cycles has everything you need to keep your Harley running at its best