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PAC Racing RPM Series valve springs were developed using all of the latest advancements from Circle Track and drag racing successes. This valuable, real-life research has been applied to new designs, which allow for performance increases that exceed all demands. RPM springs are made from quality materials and are available in different diameters and pressures to suit your specific camshaft profile.
( 8 )
$895.71
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.
( 32 )
$801.95
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$1,003.95
BTR Platinum valve spring kits are dual-spring kits, highly recommended when upgrading to an aftermarket camshaft. Each assembly was created to fill the need for high performance—and comes with quality dual-valve springs, titanium or chromoly retainers, locks, seals, and locators for stock or bronze guides. Build a better high performance cam with BTR valve spring kits! Order the material and stem seal color you prefer, and the model recommended for use with your engine application.
( 16 )
$999.99
Lingenfelter Performance Engineering LSX valve springs are premium single beehive-style valve springs. They are offered in sets of 16 and can be used with stock LS valve spring retainers.
Not Yet Reviewed
$807.45
Valve springs are one of the most critical and overlooked components in your engine. They must be matched to your cam in order for the engine to reach its full potential. It does absolutely no good to install a cam that will perform up to 8,000 rpm if you do not have the correct springs. Use the only valve springs that will give the recommended spring pressure with the valve both on the seat and at maximum lift. COMP Cams valve springs are offered in single and dual styles to meet your cam requirements.
( 273 )
$823.95
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$1,029.03
These Manley NexTek valve springs are better-designed valve springs using state-of-the-art machinery for purpose-built racing engines. They're manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature a proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. The Manley NexTek valve springs are smaller diameter and lightweight, allowing engines to rev higher faster. They have an extended tip thickness designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading.
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$789.80
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$999.69
These Howards Cams LS dual valve springs are specifically designed for GM Gen III LS1, LS2, and LS6 performance applications. They feature high-tech winding, heat-treating, and finishing processes to make them the ultimate late model performance springs.
( 1 )
$804.99
Summit Racing™ camshaft and spring kit Pro Packs have been put together to cut down on costs and save you precious time. They include a new camshaft, springs, retainers, and assembly lube. The Summit Racing™ camshaft and spring kit Pro Packs are available with a variety of different camshaft profiles, so you can choose which one is best for your engine combination.
( 1 )
$863.85
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$910.85
On Sale
Summit Racing™ Pro LS camshaft and spring kits are designed for GM LS engines. Each cam kit offers a budget-friendly option without sacrificing quality and performance. They're available in Stage 1 or 2 performance configurations. Stage 1 kits include the cam and matching drop in beehive springs with seals or optional upgraded dual spring and retainer kit. Stage 2 kits give you an additional cam change gasket kit and a crank bolt. Order the Summit Racing™ Pro LS camshaft kit recommended for your year/make and engine application.
( 37 )
$766.95
Kibblewhite has developed these high performance turbo racing valve springs for the performance enthusiast. The folks at Kibblewhite have years of experience building the finest valvetrain products, and that experience has culminated in these turbo racing 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 high performance motors that consistently see high revs and abuse. Upgrade to these Kibblewhite high performance turbo racing valve spring kits today to realize your performance machine's true potential.
Not Yet Reviewed
$834.80
PRW Pro Series shaft-mount rocker arm kits are comprised of components from the finest manufacturers in the world. CNC machined billet steel pedestals, ground steel alloy rocker shafts, PRW alloy steel fasteners, and studs and bolts are included in the complete kits for a professional install. Each rocker body is relieved for extra valve spring clearance and anodized for added strength. Choose the kit designed for your vehicle.
( 1 )
$775.05
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$918.18
Don't trust your engine investment to just any no-name rocker manufacturer. Harland Sharp heavy-duty roller rockers are specifically designed for the heavy spring pressure and high-lift geometry of highly modified engines. They're also engineered with wider bodies, resulting in increased rocker strength and longevity. So, when your engine requires extra durability, use Harland Sharp heavy-duty roller rockers.
( 58 )
$858.99
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$1,037.99
These proven rollerized rockers from Crower are made from 17-4PH stainless steel with 1025 heat treating. They feature premium oversized needle bearings, sure-lock rocker nuts, and alloy steel tip rollers. Their superior, lightweight body design provides plenty of clearance for large-diameter springs.
( 24 )
$975.99
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$1,057.99
PRW Platinum Series shaft-mount rocker arm systems fulfill the needs of successful racers and performance engine builders at every level. The Performance Quotient PQx rocker arms are made from quality alloy extrusions. These systems include CNC-machined billet steel pedestals, and ground, steel alloy rocker shafts—along with PRW SCM-4135 alloy steel fasteners, studs, and bolts. PRW Platinum Series shaft-mount rocker complete kits include all the components and hardware required for a professional installation. Order the system recommended for your specific vehicle and engine size. Features, items, and specs: * Several systems to suit many cam profiles * 8 pairs of shaft-mount rockers with adjustable cup-style valve lash adjusters * SAE 42100 full complement precision needle and cage roller bearings * Rated up to 750 lbs. open spring pressure * Internal oiling system for long-lasting performance
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$779.24
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$816.92
Isky Red-Zone Max Endurance roller lifters are designed to withstand a massive amount of abuse without letting you down. In racing or high performance engines, radical cam profiles and huge spring pressures take their toll on lifters--that's where these Red-Zone lifters come into play. These lifters are designed around Marathon roller bearings that utilize a larger diameter pin and a shock-absorbing race that are able to withstand huge spring pressures and sustained high rpm without prematurely wearing out. Add to that Isky's exclusive full spectrum three-point oiling system that delivers a continuous oil supply to the lifters, and over the nose of the cam, and you end up with one of the toughest and most reliable lifters available. Don't risk the race or your engine to inferior lifters--upgrade to these Isky Red-Zone Maximum Endurance roller lifters!
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$779.99
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$966.99
PRW pedestal-shaft rocker arms are made from 6061-T6 or Series 7000 2024 aircraft quality aluminum alloy extrusions. Each rocker body is relieved for extra valve spring clearance and anodized for added strength. Each rocker body is shot-peened and machined for extra valve spring clearance; then anodized for better cooling and added strength. Each rocker arm incorporates needle roller bearings from the finest manufacturers in the world. CNC-machined billet steel pedestals, center-ground steel alloy rocker shafts, and PRW Custom-4135 alloy steel fasteners, valve lash adjusters and 12-pt. lash nuts comprise the foundation of these rocker arm systems. The kits come with the components and necessary hardware required for a professional installation. Order the rocker arms designed for your application needs. Features and characteristics: * Rated 750 lbs. open spring pressure * Internal oiling system for long-lasting performance * SAE 42100 full complement precision needle and cage roller bearings * Available in 1.5 or 1.6 ratio, and 1.5/1.6 split-ratio assemblies
Not Yet Reviewed
$775.05
COMP Cams Thumpr LS camshaft packages come as a complete valvetrain parts package that is matched for specific LS applications and desired performance. COMP Cams engineers have spent countless hours testing and creating valve train component combinations that are perfectly matched for maximum horsepower and dependability, as well as creating that wildly popular Thumpr sound in GM LS applications. Thumpr camshaft packages can add anywhere from 60 to 110 hp (depending on the application). COMP Cams Thumpr LS camshaft packages include: * Thumpr LS camshaft * Pushrods * Valve springs * Retainers * Valve locks * Spring seats * Valve seats
Not Yet Reviewed
$865.95
Howards Cams ProMax direct lube mechanical roller lifters feature "Full Time" high pressure oiling to the roller bearing shafts. This continuous oiling offers higher rpm and high spring pressure capabilities. ProMax lifters feature lightened steel alloy bodies with a special enhanced finish and heat-treated stainless steel link bars. The case-hardened 8620 rollers are fitted with the best alloy bearings and pins. These are the same materials and designs used on most Top Fuel lifters. The .300 in. taller body allows these lifters to fit early, late model, and aftermarket locks. Howards Cams ProMax direct lube mechanical roller lifters are also fully rebuildable.
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$802.99
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$999.99
Ford 4.6L/5.4L modular 3-valve engines found in 2005 and newer Mustangs are all the rage. So the question on everyone's mind becomes, "How can I further improve the performance of these powerful engines?" COMP Cams XFI VSR Modular 3V (Valve Springs Required) Camshafts deliver a great power improvement over stock levels. These cams are the next step up from the COMP Cams NSR (No Springs Required) Cams and represent a major upgrade in power production. When compared to the NSR, stock valve spring compatible cam series, the VSR cams offer a substantial power gain in the higher rpm ranges. To achieve this, a high-lift design that requires a COMP Cams Beehive Valve Spring upgrade was created to maximize power within the limits of the OEM unmodified cam phasers. These new VSR camshafts are available for both naturally aspirated and supercharged engines, with two levels available in each series; one designed for maximizing mid-range power and torque, while the other maximizes top end horsepower. The performance secret behind these camshafts is in the extensive dyno testing that allowed them to determine precise cam timing events. Combining these optimized timing events with a high-lift lobe design offers substantial improvements in both power and throttle response. Designed to work flawlessly with the factory VCT, which is programmed to retard the cam timing above 4500 rpm, the new COMP Cams XFI VSR Ford 4.6L/5.4L Modular 3V Cams optimize both mid and high rpm performance.
Not Yet Reviewed
$1,028.95
The COMP Cams XFI SPR Ford 4.6L/5.4L modular 3V (Springs & Phaser Mods Required) camshafts are the best way to achieve the most power and torque increases possible with the popular Ford Modular 3V engine. These designs are the next step up from the COMP Cams VSR (Valve Springs Required) cams. When compared to the VSR cams, the SPR cams offer additional mid-rpm power increases as well as substantial power gains in the higher rpm ranges. In addition to increases in horsepower, you can also expect another 800-1000 rpm of useable engine speed and an awesome sounding idle lope to match. To achieve this extra level of performance, lobe profiles and timing events were specifically designed to work with the factory variable cam timing (VCT) system cam phasers for all 2005 and newer Ford Modular 3V engines. These cam phasers were modified with the required COMP Cams Cam Phaser Limiter kit to restrict their movement to no more than 20 degrees. This simple modification gains additional piston to valve clearance, allowing for much larger cam designs. This results in cams that not only maintain low and mid-range power, but have incredible high rpm performance as well, all while maintaining the benefits of cam phasing. As noted by the COMP Cams engineering staff during extensive dyno testing, these camshafts provided the biggest power and torque improvements of any cam series they've ever tested in the Ford Modular 3V engine.
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$1,028.95
Summit Bucks
COMP Cams LST Series hydraulic roller camshafts deliver "Low Shock Technology." These LST camshafts feature lobe profiles designed to maximize horsepower, while improving stability at higher rpm. They're also easier on the valve springs, enhancing durability and reducing load loss. From street durability to track power, COMP Cams LST Series hydraulic roller camshafts are an awesome choice for your build. The cams are available for a variety of engine, piston, and engine applications.
Not Yet Reviewed
$876.95
Summit Bucks
COMP Cams LST Series solid roller camshafts deliver "Low Shock Technology." These LST cams feature lobe profiles designed to maximize horsepower, while improving stability at higher rpm. They're also easier on the valve springs, enhancing durability and reducing load loss. For maximum horsepower with either stock or aftermarket pistons (choose the model suited to your application), COMP Cams LST Series solid roller camshafts are an excellent option for your build.
Not Yet Reviewed
$855.95
COMP Cams aluminum roller rocker arms are made from a high-quality alloy, anodized for durability and good looks. They have needle-bearing trunnions to allow for high valve spring loads (over 350 lbs.) and a tensile strength of 80,000 psi. While these rockers are more expensive than COMP Cams High Energy or Magnum rockers, they're a great choice for any race application.
Not Yet Reviewed
$1,056.95
S&S Cycle Early Twin Cam Easy Start gear drive camshaft kits offer more performance for less money, and more time to enjoy riding. The Easy Start kits allow your stock starter to start any engine and most can be used with stock valve springs. Plus, they are designed to greatly improve valve timing accuracy by eliminating timing chain lash. Twin Cam kits include cams with inner gears and installation kits. 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 Early Twin Cam Easy Start gear drive camshaft kits.
Not Yet Reviewed
$1,070.95
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