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214 Results Found For "spring"

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Results 1 - 24 of 214

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.

4.66 out of 5 stars ( 32 )

$1,003.95

$1,311.95

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

$1,383.99

COMP Cams Valve Springs

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.

4.6 out of 5 stars ( 273 )

$1,029.03

Manley NexTek Valve Springs

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.

5.0 out of 5 stars ( 4 )

$1,088.15

$1,241.10

Cam Motion Valve Spring Kits

Cam Motion valve spring kits feature all the parts you need to install your new valve springs. They include a new set of valve springs, steel or titanium retainers, valve locks, valve seals, and valve spring seats. The kits are available with different diameter valve springs, so you can match them up to your camshaft profile.

Not Yet Reviewed

$1,070.99

Crower Performance Valve Spring and Retainer Kits

Crower valve spring and retainer kits are cycle-tested and race-proven to ensure great performance. These valve springs and retainers, when matched with the right cam, will help provide the performance you're looking for.

5.0 out of 5 stars ( 2 )

$1,057.99

Trick Flow® Track Max® Hydraulic Roller Camshaft and Valve Spring Upgrade Kits for Ford 4.6L/5.4L 2V

Trick Flow® takes the guesswork out of choosing the right cams and valvetrain upgrades for your Ford 4.6L/5.4L 2V modular engine with these Track Max® hydraulic roller camshafts and valve spring upgrade kits. Kit number TFS-K51802001 is perfect for naturally aspirated street engines operating in the 1,500-5,000 rpm range. Kit number TFS-K51802002 has an 1,800-6,500 rpm operating range and is ideal for mild street/strip engines with power adders using a maximum of 5-6 psi of boost. Kit number TFS-K51802003 delivers strong mid-range to top-end power (up to 6,500 rpm) in extreme duty street and naturally aspirated race engines. Kit number TFS-K51802004 is Trick Flow's highest-performing modular cam kit. It is recommended for maximum duty race engines with power adders and boost pressures of 15-plus psi that operate in excess of 6,500 rpm. The kits come complete with new cams and valve springs plus chromoly retainers, valve locks, seals, 12mm bolts and washers, and installation instructions. PCM tuning is recommended for maximum performance.

4.0 out of 5 stars ( 4 )

$1,205.99

$1,206.99

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

$1,672.03

Kibblewhite Shim-in Tappet Spring Kits

With over 70 years of experience, KPMI engineers design innovative performance improvements for valvetrains. And this innovative ability has never been more apparent than with the development of their high-tech, lightweight racing valve spring kits for the incredibly stressed and torturous environment in today's high revving 4-stroke engines. Kibblewhite shim-in tappet spring kits locate the adjustment shim in the hardened steel of the tappet body, where it is impervious to wearing (ovalling) and kicking the shim out. By designing the tappet and retainer together as a system, the shim counterbore depth in the tappet has been maximized, allowing for increased insurance against losing the shim--even in the event of valvetrain separation during severe operating conditions, over-revs, or extreme boost pressures. KPMI shim-in-tappet systems are offered for a host of applications.

Not Yet Reviewed

$1,489.33

Trick Flow® PowerPort® 240 Cylinder Heads for Big Block Mopar

Once you see Trick Flow® PowerPort® 240 heads for big block Mopar in action, you'll agree they are the only aftermarket aluminum heads worth using on your engine! What makes PowerPort® 240 heads so great? For starters, they're made from premium grade A356-T61 aluminum. That's important because it weighs a lot less than cast iron and is very strong. Trick Flow® engineers then fixed the shortcomings of the factory head design by relocating the oil holes for the rocker shafts and optimizing the shape of the runners to increase flow velocity and add much needed strength to the shaft bosses. Fully profiled combustion chambers and CNC Street Ported runners guarantee proper dimensional accuracy and balanced flow from runner-to-runner for maximum power potential. Additional advantages of PowerPort® 240 heads over stock heads include clearance for 3/8 in. pushrods, ductile iron valve seats, bronze alloy valve guides, and multi-angle valve seat machining on precision Serdi® equipment. Assembled cylinder heads come with premium 11/32 in. stainless steel valves, Trick Flow® by PAC Racing valve springs, chromoly and titanium retainer options, and 7 or 10 degree steel valve stem locks. Since swapping cylinder heads can be a costly and time-consuming process, Trick Flow® designed the PowerPort® 240 heads to accomodate all factory-style big block Mopar pistons. They are also manufactured to accept aftermarket roller rocker arms, intake manifolds, and headers. They are available fully assembled or as bare castings. Sold individually.

4.86 out of 5 stars ( 29 )

$1,149.99

$1,549.99

AFR 335cc Enforcer BBC Cylinder Heads

AFR's 335cc BBC Enforcer cylinder heads feature their Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners, and combustion chambers that allow for extremely accurate and repeatable port location/performance. These budget-friendly heads are perfect for your 509 to 540 cu.in. operating below 6,500 rpm. They come fully assembled with the identical components found in AFR's higher end CNC-ported cylinder heads—such as ARP rockers studs, PAC Racing springs, Viton® valve seals, AFR adjustable guide plates, machined bead valve locks (not stamped), hardened spring seats, and AFR's one-piece 8mm 21 4N stainless steel valves. Order the cylinder heads recommended for your year/make and engine application.

4.0 out of 5 stars ( 5 )

$1,023.75

Trick Flow® PowerPort® 175 Cylinder Heads for Ford 390-428

Give your Ford 390-428 more get-up-and-go with Trick Flow PowerPort® 175 cylinder heads. A direct bolt-on for all 1961-76 FE engines, the heads are made from top-quality A356-T61 aluminum so they're much lighter but still as strong as OE castings. Specially optimized intake runners increase airflow velocity, and Trick Flow's extraordinary CNC Street Ported treatment guarantees proper dimensional accuracy and balance between the runners. Other performance improvements of the PowerPort175® heads include bronze alloy valve guides, ductile iron valve seats, and multi-angle valve seat machining on SerdiR equipment. Assembled cylinder heads include premium 11/32 in. stainless steel valves, Trick Flow® by PAC Racing valve springs, 7 or 10 degree steel valve stem locks, and chromoly or titanium retainer options. The heads are available fully assembled or as bare castings. Sold individually.

4.89 out of 5 stars ( 9 )

$1,099.99

$1,524.99

Trick Flow® GenX® 255 Cylinder Heads for GM LS3

Trick Flow engineers used the best features of OEM GM LS3 and LS7 cylinder heads, combined with their own race-winning engineering and technology, to create the GenX® 255—the ultimate ultimate square port LS cylinder head for 4.000" and larger bore engines. The heads feature fully CNC Competition Ported runners with a premium high resolution surface finish for maximum airflow and performance potential. Stock LS3 ports accommodate LS3-style intake manifolds and LS9/LSA blower assemblies. The valve angles have been changed from 15° to 12° to increase piston-to-valve clearance and allow the use of larger camshafts. The coolant holes through the head deck were redesigned to work with all LS head gasket and engine block combinations. GenX 255 heads are available with standard or 6-bolt per cylinder mounting patterns. Trick Flow GenX 255 cylinder heads are emissions-legal under CARB E.O. #D-747 for 2007-present GM vehicles with 6.2L engines. They are available fully assembled or as bare castings. Sold individually.

4.0 out of 5 stars ( 7 )

$1,449.99

$1,599.99

Trick Flow® PowerPort® 270 Cylinder Heads for Big Block Mopar

Trick Flow® PowerPort® 270 Max Wedge-style cylinder heads will significantly improve the power of your big block Mopar right out of the box. How? Well for starters, PowerPort® 270 heads are made from premium grade A356-T61 aluminum. That's important because it weighs a lot less than cast iron and is very strong. Trick Flow® engineers fixed the shortcomings of the factory head design by relocating the oil holes for the rocker shafts and optimizing the shape of the runners to increase flow velocity and add much needed strength to the shaft bosses. PowerPort® 270 heads also feature larger, raised Max Wedge-style intake runners that provide a straighter path to the valve for improved airflow. The runners are treated to Trick Flow's® signature high resolution CNC Competition Ported surface finish that guarantees proper dimensional accuracy with balanced flow from runner-to-runner for maximum power potential. Additional advantages of PowerPort® 270 heads include clearance for 3/8 in. pushrods, ductile iron valve seats, bronze alloy valve guides, and multi-angle valve seat machining on precision Serdi® equipment. Assembled cylinder heads come with premium 11/32 in. stainless steel valves, Trick Flow® by PAC Racing valve springs, chromoly and titanium retainer options, and 7 or 10-degree steel valve stem locks. They are available fully assembled or as bare castings. Sold individually. Since swapping cylinder heads can be a costly and time-consuming process, Trick Flow® designed the PowerPort® 270 heads to use all factory-style big block Mopar pistons. They also are manufactured to accept aftermarket roller rocker arms, and headers. A Max Wedge-style intake manifold is recommended for best performance.

4.92 out of 5 stars ( 12 )

$1,249.99

$1,649.99

Trick Flow® PowerPort® Cleveland 225 Cylinder Heads for Ford 351C, 351M/400 and Clevor

Designed for high performance street/strip engines! Trick Flow® PowerPort® Cleveland 225 cylinder heads feature runners based on the OE Ford 2V design. The heads feature fully CNC competition ported runners with a premium high resolution surface finish for maximum, all-out performance The exhaust runners are raised .100" from the stock location to improve the short turn radius and dramatically improve exhaust flow, and a revised oil return system improves oil drain back and includes provisions for mating with Ford 351W blocks. PowerPort Cleveland 225 cylinder heads fit Ford 351C, 351M, and 400M engines out of the box. With minor machining, the heads also fit Ford 302/351W blocks to create a "replica" Boss 302 or a 351 "Clevor" engine. The heads are available fully assembled or as bare castings. Sold individually.

5.0 out of 5 stars ( 6 )

$1,599.99

$1,749.99

Trick Flow® DHC™ 200 Cylinder Heads for Small Block Chevrolet

Build the ultimate classic-looking hi-po Chevy small block with Trick Flow® DHC™ 200 cylinder heads. Patterned after Trick Flow's popular DHC™ 175 as-cast heads, DHC™ 200 heads get the full CNC-ported treatment to substantially ramp up power production. New 64cc CNC-profiled combustion chambers with 2.055 in. intake valves and CNC Street Ported runners promote big increases in high-RPM horsepower and torque. Bronze alloy valve guides, ductile iron valve seats, and stainless steel valves ensure excellent durability, while proprietary valve profiles and multi-angle valve seat machining maximize flow at low lift. Extra thick decks and walls increase casting strength for peace of mind in demanding conditions. Chromoly steel retainers, 7-degree machined steel valve locks, factory intake and exhaust port locations, and your choice of Trick Flow by PAC Racing valve springs are also standard. As with all Trick Flow® cylinder heads, DHC™ 200 heads are cast from A356-T61 aluminum to keep weight low. To preserve the vintage theme, exterior touches like straight spark plug holes, castings with or without accessory bolt holes, and other OE double hump head styling cues deliver the traditional look you're going for. Sold individually.

5.0 out of 5 stars ( 1 )

$1,249.99

$1,274.99

Trick Flow® PowerPort® Cleveland 195 Cylinder Heads for Ford 351C, 351M/400 and Clevor

Trick Flow PowerPort® Cleveland 195 cylinder heads feature runners based on the OEM Ford 2V design. The heads feature CNC Street Ported runners that are CNC-machined with a standard resolution surface finish—perfect for street and strip machines. The exhaust runners are raised .100" from the stock location to improve the short turn radius and dramatically improve exhaust flow, and a revised oil return system improves oil drain back and includes provisions for mating with Ford 351W blocks. PowerPort Cleveland 195 heads fit Ford 351C, 351M, and 400M engines out of the box. With minor machining, the heads also fit Ford 302/351W blocks to create a "replica" Boss 302 or a 351 "Clevor" engine. The heads are available fully assembled or as bare castings. Sold individually.

4.75 out of 5 stars ( 24 )

$1,299.99

$1,449.99

Trick Flow® PowerPort® 190 Cylinder Heads for Small Block Mopar

Trick Flow® PowerPort® 190 cylinder heads for small block Mopar engines are made from A356-T61 aluminum because it's much lighter but every bit as strong as cast iron. The intake runners have been enhanced to increase airflow, and both intake and exhaust runners feature Trick Flow's® special CNC Street Ported treatment that combines premium-quality CNC machining with a standard resolution finish that's perfect for making more power. That's not all! Newly designed rocker arm shaft mounting bosses are stronger than the OE design, and larger diameter pushrod holes have been incorporated to accommodate 3/8 in. pushrods for use with flat tappet and hydraulic roller camshafts. Bronze alloy valve guides, ductile iron valve seats, and multi-angle valve seats further increase performance and durability. Assembled cylinder heads include premium 11/32 in. stainless steel valves, Trick Flow by PAC Racing® valve springs, steel valve stem locks—and have chromoly and titanium retainer options. The heads fit all non-emissions 318, 340, and 360 engines found in many Chrysler vehicles from 1967-2003. You read that right: these heads fit both LA and Magnum-series engines, giving builders a truly "best of both worlds" scenario. That means Magnum builders can use readily available LA engine parts such as intake manifolds and valve covers. PowerPort® 190 cylinder heads are available fully assembled or as bare castings; sold separately. Order the model recommended for your year/make and engine application.

4.93 out of 5 stars ( 15 )

$1,249.99

$1,424.99

Trick Flow® PowerPort® 290 Cylinder Heads for Ford 429/460

Trick Flow PowerPort® 290 cylinder heads for Ford 429/460 engines deliver significant horsepower and torque gains over similar-style cylinder heads. The heads have Fast As Cast® runners that duplicate the port shape and profile of CNC-ported heads for near-CNC-ported power and performance for about the same price as regular cast cylinder heads. Other features include an extremely efficient chamber design for more complete combustion and exhaust ports raised .270" from stock for increased airflow, Trick Flow PowerPort 290 cylinder heads are available fully assembled or as bare castings. Sold individually.

Not Yet Reviewed

$1,399.99

$1,599.99

COMP Cams HRT Stage 2 Camshafts

COMP Cams HRT Stage 2 camshafts use the newest and most advanced lobe designs in order to produce some of the highest average power and torque available. The "Low Shock Technology" features lobe profiles designed to maximize horsepower while improving stability at higher engine speeds. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. These new HRT camshafts receive the Micro Surface Enhancement (MSE) finishing process as a standard feature, which increases strength and performance by reducing surface peak roughness and provides a 250 percent improvement in the effective load bearing area, allowing for much higher loads.

4.0 out of 5 stars ( 1 )

$1,222.95

$1,236.95

Trick Flow® Super 23® 215 Cylinder Heads for Small Block Chevrolet

Trick Flow® Super 23® 215 cylinder heads give a huge performance boost to race-ready small block Chevy engines. Based on the proven Super 23® head design, the heads feature large, 215cc intake runners for more airflow in the mid and upper RPM range. Fast As Cast® ports deliver near-CNC-ported flow and performance for about the same price as regular cast heads—that means more power for less. Other features include angled spark plugs, raised valve cover rails, and extra-thick decks and walls for custom porting jobs. You can get Super 23® 215 heads with two valve spring packages for different camshaft types and power levels. The standard 453 lb. valve springs are perfect for most hydraulic roller cams. For more aggressive solid roller cam profiles, choose the optional 550 lb. valve springs for proper control at high RPMs. Cylinder heads are available fully assembled or as bare castings. Sold individually.

5.0 out of 5 stars ( 1 )

$1,054.99

COMP Cams HRT Stage 1 Camshafts

COMP Cams HRT Stage 1 camshafts use the newest and most advanced lobe designs in order to produce some of the highest average power and torque available. The "Low Shock Technology" features lobe profiles designed to maximize horsepower while improving stability at higher engine speeds. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. COMP Cams HRT camshafts receive the Micro Surface Enhancement (MSE) finishing process as a standard feature, which increases strength and performance by reducing surface peak roughness and provides a 250 percent improvement in the effective load bearing area, allowing for much higher loads. All HRT Stage 1 camshafts do not require upgraded valve springs.

5.0 out of 5 stars ( 1 )

$1,222.95

$1,236.95

COMP Cams HRT Stage 3 Camshafts

COMP Cams HRT Stage 3 camshafts use the newest and most advanced lobe designs in order to produce some of the highest average power and torque available. The "Low Shock Technology" features lobe profiles engineered to maximize horsepower while improving stability at higher engine speeds. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. COMP Cams HRT Stage 3 cams receive the Micro Surface Enhancement (MSE) finishing process as a standard feature to increase strength and performance by reducing surface peak roughness. This also provides noticeable improvement in the effective load bearing area, thus allowing for much higher loads. Order the model recommended for your vehicle and engine application.

5.0 out of 5 stars ( 1 )

$1,330.95

Trick Flow® High Port® 225 Cylinder Heads for Small Block Ford

Trick Flow® High Port® 225 cylinder heads are specifically designed for large cubic inch small block Ford engines as well as engines with high-boost superchargers or turbos, big shot nitrous oxide systems, and other mega-power combinations. They feature unique valve spacing, .750" raised exhaust runners, extra strong castings and thick decks for additional rigidity and gasket integrity, superior cooling characteristics, and most importantly, excellent airflow. Top-of-the-line CNC Competition Ported runners with a high resolution surface finish provide maximum airflow and power over the entire rpm range. The entry into the intake runner has been reshaped to help seal the area along the port roof and thicker port walls increase strength and provide additional material for porting. Plus, interlocking ductile iron seats are used to handle the stresses of high heat, high horsepower applications. Other features include fully CNC-profiled combustion chambers with port-to-valve seat blending (bowl blending) and raised valve cover rails. Trick Flow® High Port® 225 cylinder heads are available fully assembled or as bare castings and sold individually.

5.0 out of 5 stars ( 3 )

$1,399.99

$1,524.99

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