HARLEY-DAVIDSON Camshafts & Valvetrain Engines & Components

S&S Cycle Late Twin Cam Chain Drive Cam Chest Upgrade Kits

S&S Cycle Late Twin cam chain drive cam chest upgrade kits contain everything needed to replace it all! Your engine will receive increased performance from the higher lifts, optimized camshaft timing, and from more consistent oil flow and pressure. Kits can be installed without the removal of your rocker box covers. They're available for a variety of Harley-Davidson© street bikes from 2006 and up. Kit components include: * Forged cam plate * Forged 3-stage oil pump * Premium lifters * Hydraulic chain tensioners * Quickee pushrods * Pushrod tubes * Chain drive camshafts * Inner camshaft bearings * All necessary gaskets, O-rings, and hardware

Not Yet Reviewed

$1,522.95

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$1,924.95

COMP Cams Twin Cam Thumpr Camshafts

COMP Cams twin cam Thumpr camshafts are designed as a serious performance upgrade with hard-hitting sound! They feature an aggressive design that provide a thumping exhaust note and they provide a great performance upgrade to any 103 cu. in. and larger twin cam engine. The cams feature a sophisticated "Endurance Ramp" lobe design that makes great power but is easy on the tappets and valve train for long life. They feature a wide power band and pull great up to 5,400 to 6,400 rpm dependent upon the camshafts selected, and engine combination. The cams are made from 8620 billet steel and have been shown to make greater gains in power, acceleration, and throttle response when tested with larger throttle bodies. Put more power to the ground, and make some noise with Comp Cams twin cam Thumpr camshafts.

5.0 out of 5 stars ( 1 )

$243.95

S&S Cycle Precision Tappets

S&S Cycle precision tappets are high performance replacements for S&S Cycle's previous standard and premium lifters for M8, Twin Cams, and late Sportster applications. Each precision tappet is hand assembled to exacting tolerances and designed for quiet operation and rapid pump up. Features and benefits: * Reduced valve train noise from start-up to shut down * Close tolerances for low leak-down rates * Fast pump up and superior high-rpm performance

Not Yet Reviewed

$279.95

S&S Cycle Standard Adjustable Pushrods

S&S Cycle standard adjustable pushrods help to assure consistent valvetrain operation under all conditions. The pushrods are made from rigid chromoly steel tubing and offer a simple, trouble-free installation. You can purchase just the pushrods or as a set with pushrod covers, O-rings, and cover keepers. Replace the stock, non-adjustable pushrods in your stock or high performance application with S&S Cycle standard adjustable pushrods, available for a wide range of Harley-Davidson® bikes from 1984 and up.

5.0 out of 5 stars ( 1 )

$152.95

COMP Cams V-Thunder Performance Replacement Lifters

COMP Cams V-Thunder performance replacement lifters feature a rigid nodular cast iron body with a 52100 bearing, axle, and wheel assembly for strength. They utilize an advanced ultra-high flow metering system that allows more oil movement through the engine to aid in cooling. Each lifter is precision I.D. ground, matched with a graded piston, and features a high-performance retaining ring. Keep your valvetrain stable with COMP Cams V-Thunder performance replacement lifters.

Not Yet Reviewed

$213.95

COMP Cams Twin Cam Camshafts

COMP Cams twin cam camshafts are designed as a performance upgrade, that offer more power with long valve train life. These camshafts provide a great performance upgrade to any 103 cubic inch and larger twin cam engine. The cams feature a sophisticated "Endurance Ramp" lobe design that makes big power but is easy on the tappets and valve train for long life. They feature a wide power band and pull great up to 5200 – 6200 RPM dependent upon the camshafts selected, and engine combination. The cams are made from 8620 billet steel for added strength and durability. Upgrade your camchest by installing a set of Comp twin cam camshafts.

5.0 out of 5 stars ( 6 )

$243.95

COMP Cams Evolution Magnum Hydraulic Roller Camshafts

COMP Cams Evolution magnum hydraulic roller camshafts are high performance camshafts designed for your Harley-Davidson®. They are constructed from superior-quality materials to bring the best possible performance to your ride. If you're looking to upgrade your Harley®, COMP Cams Evolution magnum hydraulic roller camshafts are must-haves.

5.0 out of 5 stars ( 1 )

$205.95

S&S Cycle Standard Forged Rocker Arms

S&S Cycle standard forged rocker arms are designed for superior strength and to eliminate the failure-prone stress areas found in other rockers. These replacement arms are forged from 8620 steel, heat-treated, and then shot-peened for additional strength. They feature 3/4 in. long bronze bushings, compared to the more common 1/2 in. long bushings or needle bearings. S&S Cycle roller arms are available in the stock 1.625:1 ratio and 1.725:1 ratio. Order the set recommended for your bike model.

Not Yet Reviewed

$334.95

S&S Cycle Street Performance .585 Valve Spring Kits

S&S Cycle offers Street Performance .585 in. valve spring kits to upgrade your bike's performance—so you don't have just another "me too" motorcycle. Order the valve spring kit designed for your make and model. Features and specifications: * Available for fitment on a variety of Harley-Davidson® and Buell models * Kit contains springs, top and bottom collars, keepers, and shims * Accommodates camshaft lift to 0.585 inches * Suitable for high performance applications * Coil springs reduce the risk of valve float

Not Yet Reviewed

$163.95

S&S Cycle Milwaukee 8 Chain Drive Camshaft Kits

Tap into the power of your Milwaukee 8 engine by installing an S&S Cycle camshaft. These kits will increase the torque and horsepower of your bike. They include all required gaskets, O-rings, bearings, and hardware. Order the model recommended for your Harley-Davidson® application.

Not Yet Reviewed

$299.95

COMP Cams V-Thunder Hy-Rev Lifters

COMP Cams V-Thunder Hy-Rev lifters were designed to handle the demand of today's high performance engines. These anti-pump-up lifters are produced on state-of-the-art computer controlled machinery which hold the tolerances to 0.003 in. for a precise fit. If you are looking to increase rpm capability and valvetrain stability, look no further then COMP Cams V-Thunder Hy-Rev lifters.

Not Yet Reviewed

$24.95

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$110.95

COMP Cams High Performance Valve Spring Kits

Simplify your valvetrain assembly! COMP Cams high performance valve spring kits have everything that you need for a complete valve spring assembly. Springs and retainers are included, along with complete instructions for a worry-free installation.

4.68 out of 5 stars ( 34 )

$90.95

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$195.95

Feuling Parts Inner Camshaft Bearings

Feuling supplies the best bearings available from Koyo Bearings USA LLC, created following Koyo's acquisition of Timken's needle roller bearings business. Feuling Parts inner camshaft bearings are heavy-duty, compact, full complement needle roller bearings designed to provide increased radial load carrying capacity by maximizing the number of rollers in the bearing. Feuling Parts inner cam bearings readily accept the higher loads and demands of performance engines.

5.0 out of 5 stars ( 2 )

$33.95

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$44.95

S&S Cycle Heavy-Duty Valve Spring Kits

S&S Cycle offers heavy-duty valve spring kits to upgrade your bike's performance—so you don't have just another "me too" motorcycle. Order the S&S Cycle heavy-duty valve spring kit designed for your bike's application. Features and specifications: * Available for M8 2017-2024 Harley-Davidson® models * Kit includes springs, top collars, keepers, valve seal/bottom collars * Works well with cams up to .605 in. lift * High performance conical single wire spring

Not Yet Reviewed

$395.95

S&S Cycle Quickee Adjustable Pushrods

Easily installed, easily removed--S&S Cycle Quickee adjustable pushrods are designed for a simple, trouble-free installation that does not require removal of the gas tank, rocker assemblies, or even the rocker box cover! Innovative Quickees feature threaded adjusters that screw into the pushrods until the threads disengage and the adjuster simply slides into the pushrods, making your installation or removal easy. Then, once the pushrods are installed and adjusted, the locknut keeps the adjuster from moving. They will work with stock and aftermarket cams, as well as stock pushrod covers. S&S proven performance makes life easier with their Quickee adjustable pushrods.

1.0 out of 5 stars ( 1 )

$314.95

Kibblewhite Lightweight Racing Valve Spring Kits

Kibblewhite is dedicated to providing the best lightweight racing valve spring kits available. The folks at Kibblewhite have years of experience building the finest valvetrain products, and that experience has culminated in these lightweight valve springs. Each spring starts life as the finest quality super-clean, chrome-silicon wire that is wound to the most exacting standards. After the spring is wound, it goes through a rigidly controlled heat treatment, stress relief, and shot-peening process that ensures the longest lasting and strongest springs possible. These springs are perfect for today's high-revving motors, whether you are on the race track or the trail. Upgrade to these Kibblewhite lightweight racing valve spring kits today and stop worrying about when one of your stock springs is going to fail you.

Not Yet Reviewed

$142.97

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$147.47

S&S Cycle Cam Chain Tensioners

S&S Cycle offers you superior valve train control for your motorcycle with their cam chain tensioners. They provide a thicker shoe, a larger piston, direct chain oiling, and tighter tolerances for improved stability and longer wear life over the stock cam chain tensioners. Order the S&S cam chain tensioners designed for your bike.

Not Yet Reviewed

$109.95

S&S Cycle Non-Adjustable Pushrods

S&S Cycle offers non-adjustable pushrods for a wide range of Harley-Davidson Big Twin street bikes from the 1940s, '50s, '60s, '70s, and '80s. * Details for 1948-52 models: S&S solid lifter pushrod set for 1948-52 panhead engines. Converts stock 1948-52 valvetrain to solid lifter operation by replacing stock pushrods, which contain built-in hydraulic units with solid non-adjustable S&S pushrods. Requires stock 1948-52 style adjustable lifters. Includes four non-adjustable steel pushrods. Fits stock 74 in. engines with 5.330 in. cylinder length. Pushrods only. * Details for 1966-84 HD models: Non-adjustable pushrod kit. Requires 1948-'2 style adjustable lifters. Includes four non-adjustable steel pushrods. (Pushrods are identical to those used in kit P/N 93-4068.) Recommended for all shovelhead and shovelhead top/panhead bottom engines with 1948-52 style lifters. Fits stock 5.330 in. cylinders.

Not Yet Reviewed

$101.95

Biker's Choice Cam Gear Thrust Washers

Biker's Choice cam gear thrust washers are an excellent alternative to overpriced and/or hard to find OEM pieces. They meet and/or exceed OEM expectations and are readily available for that rebuild or restoration your V-Twin needs.

Not Yet Reviewed

$46.99

Kibblewhite Black Diamond Valves

Kibblewhite Black Diamond valves are CNC-machined from one-piece forgings of EV8 stainless steel, impregnated by a special German process to a depth of .002 in. with a surface buildup of .0002 in. This proprietary, multi-stage process reduces friction and provides superior resistance to wear and corrosion over traditional chrome and nickel electrolysis plating processes. These valves go through an oxiding and polishing process that creates an extremely smooth surface finish that's easy on valve guides, and there's nothing to flake off and get trapped between the valve and guide to cause seizure or wear! Kibblewhite Black Diamond valves are designed using Finite Element Analysis software, with profiles tested on Kibblewhite's computerized flow bench to provide excellent flow characteristics. These strong, reliable, and lightweight valves are your ticket to ultimate valvetrain performance!

Not Yet Reviewed

$29.81

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$37.55

Feuling Parts Outer Camshaft Bearings

Feuling Parts outer camshaft bearing kits include a ball bearing-style front camshaft bearing and a roller bearing-style rear camshaft bearing with race. Their outer cam bearings readily accept the higher loads and demands of performance engines. Feuling Parts supplies only the best bearings available.

Not Yet Reviewed

$50.95

Kibblewhite High Performance Ovate Wire Valve Spring Kits

Kibblewhite developed these high performance ovate wire valve spring kits for to take full advantage of your high performance engine. Ovate wire springs distribute forces and heat more efficiently due to a larger surface area and are ideal for high-lift, bind-free performance due to their lower profile. Kibblewhite springs are wound from super-clean chrome silicon wire that is heat-treated and shot-peened to improve strength, durability, and consistency. These springs are available for a variety of lifts and seat pressures to help you find the perfect set for your project. Take full advantage of your ride's performance potential with these Kibblewhite high performance ovate wire valve springs.

Not Yet Reviewed

$184.99

S&S Cycle Evolution Camshafts

Do you feel like your high-mileage EVO Big Twin engine has lost its gusto? S&S Cycle Evolution camshafts can to tap in to the hidden potential of your motorcycle's engine. So, what can you expect after the upgrade? For starters, you can expect higher lift and increased valve timing for better performance! S&S cams are made in-house to quality standards and come in various compression ratios to meet your engine needs. S&S Cycle Evolution cams are performance-driven, easy to install, and affordable!

Not Yet Reviewed

$255.95

S&S Cycle Late Twin Cam Easy Start Chain Drive Camshaft Kits

S&S Cycle Late Twin Cam Easy Start chain drive camshaft kits offer more performance for less money and more time to enjoy riding. These S&S camshaft kits allow your stock starter to start any engine. Plus, some kits reuse stock components and can be used with stock valve springs. Most Easy Start kits include the cams, gear cover gasket, cam bearings, and instructions. Installation doesn't take long and S&S offers many choices to meet your engine size and compression ratio. Here's an easier way to increase performance without emptying your wallet--S&S Cycle Late Twin Cam Easy Start chain drive camshaft kits.

Not Yet Reviewed

$540.95

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$549.95