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36 Results Found For "spring"
Showing In Stock Items. Show All 36 Items.
Clearance
Trick Flow® by PAC Racing Single Valve Springs
Valve springs compress and rebound hundreds of times a second. Make sure your next set of valve springs are built to last—and built to win! Trick Flow® by PAC Racing single valve springs feature flat internal damping coils to prevent spring surge at high revs, maintaining proper spring pressure at critical load levels. PAC springs are CNC coiled from high tensile-strength, extra-durable Pacaloy chrome-silicon steel and double shot-peened beyond Aerospace Material Specifications (AMS) reliability standards.
( 24 )
$34.99
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$39.99
$31.50
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$34.50
Clearance
Melling Valve Springs
Melling valve springs are perfect for stock rebuild or mild performance applications. They are manufactured from high-quality materials and fit in the stock location without any machine work. When you're replacing your valvetrain components, try Melling valve springs to keep your engine running smoothly.
( 16 )
$5.99
$4.50
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PAC Racing 500 Series Valve Spring Retainers
PAC Racing 500 Series valve spring retainers are every bit as reliable as retainers 20 percent heavier. These retainers are produced from the finest proprietary high-tensile titanium alloy for incredible wear and strength. PAC's engineers take this material and form the ultimate lightweight retainers. They are designed for high-rpm professional racing and abusive or severe engine applications. When you're building severe engines, you need parts designed to withstand incredible heat and rpm. PAC Racing 500 Series valve spring retainers are built to take all that you can give.
( 3 )
$18.95
$9.50
Clearance
PAC Racing Hot Rod Series Valve Springs
PAC Racing Hot Rod Series valve springs offer the engine and hot rod builder a mild upgrade or replacement for their hot rod. They are available in a variety of spring rates and diameters to accommodate your specific engine and camshaft profile.
( 1 )
$9.29
$4.50
Clearance
Howards Cams Performance Mechanical Flat Tappet Valve Springs
Howards Cams performance mechanical flat tappet valve springs are constructed from top-quality, aircraft-grade chrome silicone material, coiled and heat-treated in the finest facilities. Each spring is coiled, stress-relieved, deburred, shot-peened, and heat-treated to Howards Cams' very strict standards. Howards Cams constantly updates their materials and manufacturing techniques to provide the best possible valve springs.
( 1 )
$15.99
$10.50
Clearance
Dove Valve Spring Locators
Dove Manufacturing offers valve spring locators, both inside and outside shoulder types, in a variety of thicknesses and diameters. Valve springs require installation at a certain height to function correctly, and you can use a set of shims to achieve this. But that will not eliminate unwanted motion in the spring. Using these steel valve spring seat locators will allow the valve spring to maintain its designed location, without dancing around on the surface of the cylinder head and possibly damaging it. Order a set of 16 in the size needed for your application.
Not Yet Reviewed
$72.99
$49.50
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$55.50
Clearance
Melling Valve Spring Retainers
Melling valve spring retainers are a crucial part of the valve spring system that should be replaced when you're installing new engine valves. The retainers are constructed from steel and are engineered to meet or exceed OEM standards. Order the size recommended for your vehicle application.
( 3 )
$7.99
$5.50
Clearance
PAC Racing 1500 Series Valve Springs
PAC Racing 1500 Series valve springs feature an industry-leading nitriding process that enables the material to withstand the abusive, wear, and fatigue of the typical endurance engine environment. They arrive fully prepared for racing with chamfering, polishing, and the latest surface-enhancement technology available. From 24 hours of LeMans, to the rigors of NASCAR--PAC Racing 1500 Series valve springs have the storied history to thrive in challenging environments.
Not Yet Reviewed
$43.99
$19.50
Clearance
Crower Steel Valve Spring Retainers
Crower's valve spring retainers are made of high-quality steel and are machined and heat-treated for strength. They have a black oxide finish to guard against the damaging effects of rust and corrosion.
( 3 )
$188.99
$123.50
Clearance
PAC Racing 600 Series Valve Spring Retainers
PAC Racing 600 Series valve spring retainers are the latest developments from PAC Racing Springs. These retainers feature ultra-lightweight designs from proprietary valve spring-type alloys. PAC Racing's sophisticated processing, such as micro-polishing and Nano Peen technology, are used to enhance retainer life. The high hardness of the steel provides higher wear resistance properties to offer superior abrasion resistance and improved fatigue strength, while also reducing weight. PAC Racing 600 Series valve spring come with a reduced step and need to be combined with a matching seat (where applicable) to optimize the performance of the valvetrain.
Not Yet Reviewed
$27.79
$9.50
Clearance
Quicksilver Circle Track Valve Springs
Quicksilver Circle Track engines are designed to deliver torque and reliability, and they offer parts and components to keep your engine winning races and championships. Quicksilver Circle Track valve springs ensure valves close properly and at the right time, maintaining proper engine performance. These valve spring kits include retainers and locks.
Not Yet Reviewed
$1,301.99
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$1,524.99
$1,010.50
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$1,195.50
Clearance
Pioneer Valve Springs
Pioneer OE replacement valve springs are designed for your factory camshaft specifications. They are available in different diameters and spring pressures to fit your camshaft's profile. To help your valvetrain perform at optimum levels, choose quality Pioneer replacement valve springs.
Not Yet Reviewed
$434.99
$226.50
Clearance
Dove Chromoly Steel Retainers
Dove Manufacturing offers chromoly steel retainers in a variety of lock styles and diameters. Valve spring retainers are responsible for keeping the correct pressure on the valve spring by locating it between the valve spring seat and the valve spring retainer itself. Order a set of 16 in the size needed for your application.
Not Yet Reviewed
$78.99
$39.50
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$59.50
Clearance
ATS Diesel Performance Valve Spring Kits
ATS Diesel Performance valve spring kits feature a conical design that provides more valve control than a standard straight spring. The conical shape allows for a smaller and lighter spring retainer that is also stronger due to size reduction. Unlike other valve springs on the market, ATS valve spring kits can be used on a wide range of trucks, from stock all the way up to competition builds making 2,000 horsepower. Each spring is computer load mapped and matched within 1 lb. of seat pressure followed by a stress relief process to ensure quality and long-term reliability. For a one-and-done upgrade that will allow you to modify your engine to support more power down the road, the smart choice is ATS Diesel Performance valve spring kits.
Not Yet Reviewed
$522.50
$396.50
Clearance
Hamilton Cams Valve Springs
Higher rpm, increased boost/drive pressures, and aggressive camshaft profiles can result in valve float and cause serious damage to diesel valvetrains. Valves can also be blown open by higher boost and exhaust drive pressures creating reversion that allows exhaust gas to enter the cylinders on the intake stroke. This re-introduced exhaust gas shields fuel particles from oxygen, delays the start of combustion, decreases cylinder pressure and temperature, and lengthens the time needed to completely burn the fuel … all reducing power. Hamilton Cams valve springs can improve power by allowing higher boost pressures and rpm without valve float or excess reversion. Their single valve springs work well up to 4,500 rpm with moderate-lift camshafts and OEM-size valves. However, as rpm, valve lift, spring pressures, and valve sizes increase, dual Hamilton Cams valve springs are necessary to properly control the valves. For the highest camshaft lifts, they should be used with Hamilton Cams titanium retainers. Note: As a precautionary measure, titanium retainers should be inspected after every season for excessive wear.
Not Yet Reviewed
$19.99
$18.50
Clearance
Summit Racing™ Pro Hemi Automotive Camshafts
Summit Racing™ Pro Hemi automotive camshafts are easy on the valvetrain and stable at high rpms. They work well with superchargers and nitrous, and will require springs, a tune, phaser limiter, and an MDS (multi-displacement system) delete. The smaller cams in this group have a noticeable lope and good power across the range, while the larger cams have a serious lope with strong top-end. Choose the one that best fits your purpose. Notes: * Pro Hemi automotive Stage 1 has a noticeable lope and works great in 5.7L as a daily driver. It makes good power through the range, and a tune and phaser limiter are required. A free flowing aftermarket exhaust is recommended. * Pro Hemi automotive Stage 2 has a mild lope and works great in a daily driver. It makes good power through the range, and a tune and phaser limiter are required. A free flowing aftermarket exhaust is recommended. * Pro Hemi automotive Stage 3 has a steady lope and is about the biggest cam to used in a daily driver. It makes great midrange and has good top end. It works with a factory converter, but a tune and phaser limiter are required, and free flowing aftermarket exhaust is recommended. * Pro Hemi automotive Stage 4 has a strong lope and works good in weekend hot rods. It makes great midrange and has very good top end. It is the biggest cam we recommend with a factory converter, and a tune and phaser limiter is required. A free flowing aftermarket exhaust is also recommended. * Pro Hemi automotive Stage 5 (or Stage 4 supercharged) camshafts provide a serious lope, great power in the mid-range, and a strong top-end. These cams require a tune, phaser limiter, an MDS (multi-displacement system) delete, and valve springs capable of .625 lift. We recommend a free flowing aftermarket exhaust and a 2800-3000 converter. Careful attention to piston-to-valve clearance is required. Fly cutting is generally not necessary. * Pro Hemi automotive Stage 6 (or Stage 5 supercharged) camshafts achieve the top stages in each of these groups, providing a serious lope, great power in the mid-range, and a strong top-end. Each of these special cams require a tune, a phaser limiter, an MDS (multi-displacement system) delete, and valve springs capable of .625 lift. We recommend a free flowing aftermarket exhaust and a 3000-3200 converter. Careful attention to piston-to-valve clearance is required. Fly cutting is generally not necessary.
( 2 )
$349.99
$299.50
Clearance
RHS Cylinder Head Parts Kits
These RHS cylinder head parts kits have been assembled with the finest premium components to provide your engine with optimal airflow for maximum engine performance. Features include: * 21-4N stainless steel intake and exhaust valves * COMP Cams valve springs, retainers, and locks * Hardened rocker arm studs for use with roller rocker arms * Pushrod guideplates * Valve seals
( 1 )
$237.95
$169.50
Clearance
Summit Racing™ Pro BBC 4-7 Swap Hydraulic Roller Camshafts
Summit Racing™ Pro BBC 4-7 Swap hydraulic roller camshafts are offered in a dozen versions to cover street/towing, street/strip, and drag race applications. Each cam features a 4/7 firing order, requiring the re-routing of spark plug wires for 1-8-7-3-6-5-4-2. Cam button, a melonized or composite distributor gear, and billet compatible fuel pump pushrod are required. Choose your level of performance. Additional features and notes: * Designed for beehive or lighter 1.4 to 1.500 dual springs * Designed in 12 steps, intake closing point is most important to operating rpm * Bigger cams with increased overlap REQUIRE more open and free-flowing exhaust for maximum mid- and high-rpm power * Cam advance is ground-in, so install dot-to-dot * Although the advance may seem larger than normal, it's designed for maximum power under the curve * Track testing is recommended before altering cam advance
( 3 )
$349.99
$299.50
Clearance
ATK High Performance Chrysler 5.7 Gen III Hemi 400 HP Long Block Crate Engines
ATK High Performance Chrysler 5.7 Gen III Hemi 400 hp long block crate engines were built in a team effort with Comp Cams. Utilizing ATK remanufactured GEN III 5.7L Hemi engines; they upgraded the camshaft, springs, and pushrods to produce reliable 400+ hp. Features typically include: * Seasoned OE Gen III Hemi block * OE reground crankshaft * OE reconditioned connecting rods * Hypereutectic pistons * Chromoly piston rings * Hydraulic roller camshaft * Aluminum cylinder heads * OE shaft mount rocker arms
( 5 )
$4,798.99
$3,999.50
Clearance
PRW Pro Series Stainless Steel Rocker Arms
PRW Pro Series stainless steel rocker arms are manufactured from lightweight, premium quality 17-4ph stainless steel—a superior alloy high in nickel and chromium. This rigid, premium material provides outstanding fatigue resistance, and high-yield strength to help resist deflection. These rocker arms feature full-cage, friction-reducing needle bearings, and extra-large trunnions to spread out the load and reduce wear. Each rocker body is hand-polished, assembled, and carefully inspected to deliver the finest quality available to the racing and performance industry. Reduce your valvetrain mass with durable, lightweight PRW Pro Series stainless steel rocker arms. Order the set recommended for your specific vehicle and engine size. Features, items, and specs: * Wide assortment of ratios to suit almost any cam profile * Each set of 16 comes complete with PRW RockerLocs * Stud-mount design provides plenty of clearance for large diameter springs * CNC-machined pushrod cups * Heat-treated steel nose rollers and shafts resist severity of racing and minimize scrubbing
( 4 )
$27.99
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$31.55
$19.50
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$22.50
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Summit Racing™ Precision Cast Cylinder Head
Summit Racing™ precision cast cylinder heads are made from tough A-356 aluminum alloy and feature Permanent Mold "As-Cast" technology. Port accuracy is unrivaled--meaning CNC porting is not required to provide superior flow. The result is CNC-ported performance at a fraction of the price! We start with precision CNC-finished faces and bolt holes for accuracy and fitment. American craftsmen expertly size and install the manganese bronze valve guides and interlocking ductile iron seats before finishing with a competition-grade valve job. From there, the decks are given a final pass for superior finish. They are finish-assembled in the USA with top-quality components like PAC Racing springs, fasteners, one-piece 21 4N stainless valves, machined locks, Viton® seals and chromoly steel retainers. The final result is the performance you want and Summit Racing™ quality you TRUST!
( 21 )
$1,999.99
$1,499.50
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Quicksilver Cylinder Heads
Quicksilver cylinder heads are ideal replacement components for many GM-style 4-cylinder and V8 engines in marine, circle track racing, RV, truck, and hard-to-find industrial applications. With exclusive Black-X valves, they are designed to be the most robust, durable, and toughest service cylinder heads available. Select the cylinders heads designed to fit your engine. Features and benefits: * Thicker castings * Improved combustion chamber for better burn characteristics * Premium springs and hardened seats on the intake and exhaust ports * Quicksilver exclusive Black-X valves -- Composite valves -- Stainless steel treated with a cobalt-chromium alloy and black plasma nitriding -- Contribute to a 42 percent reduction in valve wear compared to traditional stainless steel valves with hardened seats -- Longer engine life, especially in the presence of modern ethanol-blended fuels * Backed with a 1-year limited warranty
Not Yet Reviewed
$1,224.99
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$1,455.99
$960.50
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$1,140.50
Clearance
Howards Cams ProMax Direct Lube Mechanical Roller Lifters
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.
( 5 )
$243.99
$145.50
Clearance
Dove Jumbo Style Valve Locks
Dove Manufacturing offers jumbo-style valve locks in a variety of valve stem diameters. Machined from steel, these small 10-degree components are at the heart of competition valvetrains. If engines are exposed to over-revving, for instance, causing valve springs and even valve retainers to float, the valve locks ensure stability.
Not Yet Reviewed
$37.99
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$38.79
$26.50
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$27.50
