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GMC SYCLONE Camshafts & Valvetrain

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Results 1 - 24 of 37

Melling Factory Hydraulic Roller Lifters

Melling factory replacement hydraulic roller lifters are designed and built to get the job done while ensuring efficient performance and quiet valve train operation. They are perfect for when you're ready to freshen up your engine. Melling factory hydraulic roller lifters are manufactured from the finest materials and designed for the proper fit and long dependable lifter life.

4.24 out of 5 stars ( 21 )

$24.99

Sealed Power Hydraulic Roller Lifters

Your valves will open more quickly from a fully closed to a fully opened position with a roller setup, compared with conventional flat lifters. With Sealed Power Hydraulic roller lifters you will notice higher performance, quieter engine operation, and more horsepower. They also provide proper vacuum and idling capabilities.

4.21 out of 5 stars ( 29 )

$19.99

Cloyes Street True Roller Timing Sets

Cloyes street true roller timing sets are aimed at the value-driven racer. They have precision-machined, cast iron cam sprockets and induction-hardened, billet steel crank sprockets. The crank sprockets have three keyways for timing adjustment--4 degrees retarded, 4 degrees advanced, and normal. The chains are rugged, double-row types with oversized 0.250 in. rollers that deliver long life and reliability.

4.61 out of 5 stars ( 132 )

$67.99

Melling Replacement Hydraulic Lifters

Melling replacement hydraulic lifters are perfect for when you're ready to freshen up your engine. Melling has designed these lifters to be within factory tolerances for the perfect fit. They are affordable and available as flat or roller lifters.

4.24 out of 5 stars ( 41 )

$13.99

Melling Performance PRO-Line Pushrods

Melling Performance PRO-Line pushrods give you the reliability that you need from your valvetrain. They are manufactured from high-quality carbon steel, are hardened for use with guideplates, and exceed OEM specifications. Their pushrods also feature close-tolerance wall thickness and a centerless ground to make sure that they are a matched set. Choose Melling Performance PRO-Line pushrods to keep your valvetrain operating efficiently.

4.42 out of 5 stars ( 12 )

$10.99

$18.99

Melling Rocker Arms

Melling rocker arms, available for both domestic and import applications, meet or exceed OEM specifications. Depending on the OE design specifications, Melling rocker arms are provided in either stamped or cast materials. Built from only the best materials and manufacturing processes available, they are perfect replacements priced right for your budget. Melling recommends installing new rocker arms with every engine rebuild to assure long engine life and efficient performance. Answer the little knock under your hood with replacement rocker arms from Melling--a supplier of quality engine parts.

4.64 out of 5 stars ( 83 )

$6.99

Chevrolet Performance Camshaft Bolts

Chevrolet Performance offers an assortment of durable bolts for use on your camshaft installation Choose from among various materials, including steel and chromoly; finishes such as black oxided and natural; lengths, head styles, and thread sizes. These bolts are available for a wide range of engine sizes and camshaft component applications.

5.0 out of 5 stars ( 30 )

$3.99

Melling Rocker Arm Nuts

Don't cheap out with inferior rocker arm nuts--use Melling! These rocker arm nuts from Melling are made from quality-grade steel for strength and durability. They're designed to keep your rocker arms positively locked for precise and critical valvetrain adjustment. So, if you want to keep your valve settings correct for a good length of time, rely on Melling to deliver!

3.75 out of 5 stars ( 4 )

$1.99

Cloyes Z Series Replacement Timing Chains

Cloyes Z Series replacement timing chains are made from high-strength steel using a proprietary heat-treated process. The fine blanked links reduce stress risers, thereby limiting fractures under severe loads. The press-fit center links improve load share by reducing load spikes on any single component and providing greater overall strength. Order the replacement timing chain designed for your vehicle and engine application.

Not Yet Reviewed

$119.99

ACDelco GM Genuine Parts Camshaft Thrust Plates

ACDelco GM Genuine Parts engine camshaft retainer plates are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These are the true OE parts installed during the production of or validated by General Motors for GM vehicles, so you can be confident they will fit and perform just like the originals they are replacing. Select the thrust plates designed for your vehicle.

3.17 out of 5 stars ( 6 )

$15.99

Melling Pushrods

Melling OEM replacement pushrods are perfect for stock rebuild or mild performance applications where open spring pressures do not exceed 300 lbs. They're manufactured from steel tubing and work well with factory or aftermarket rocker arms. These units are available in a wide range of lengths and other options for fitment on countless makes and models. When you're replacing your valvetrain components, trust Melling pushrods to keep your engine running smoothly.

4.56 out of 5 stars ( 82 )

$2.99

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.

4.25 out of 5 stars ( 16 )

$4.99

$6.99

Clearance

Melling Valves

It's never a good idea to cut corners when you're installing new valves. Melling is noted for its world-class engineering, superior grade alloy materials, and advanced manufacturing processes. Melling intake and exhaust valves meet the exacting specifications required for efficient, durable, and powerful performance. They feature high-fatigue strength, excellent heat resistance, and offer years of dependable service. Available in a wide variety of designs and materials for most OEM and performance vehicle applications, each valve is built and validated to meet or exceed OE specifications. Melling valves—unsurpassed quality you can trust.

4.46 out of 5 stars ( 48 )

$12.99

$20.99

Melling Replacement Valve Locks

Melling replacement valve locks are designed for stock engines with standard retainers and pressure valve springs. Manufactured from stamped steel, they will replace your stock valve locks with no modifications. Rebuilding your valvetrain? Try these Melling replacement valve locks to eliminate any valvetrain failure.

5.0 out of 5 stars ( 8 )

$2.99

$3.99

Cloyes Replacement Timing Chains

Restore prime performance to your engine with the ultra-durable construction of Cloyes OE replacement timing chains. They're precisely engineered with high-quality materials for optimum chain-to-tooth fitment and timing. Cloyes has been manufacturing and marketing timing components for nearly a century and is a leading aftermarket manufacturer of timing drive components. Features include: * Made from high-quality materials for durability * Precisely engineered for optimum chain-to-tooth fitment and timing * Direct-fit for straightforward installation * Available for wide range of vehicle-specific applications

4.43 out of 5 stars ( 23 )

$19.99

$72.99

Cloyes Street Billet True Roller Timing Sets

Offering a level of True Roller advantage for the value-racer, Cloyes upgraded the cam sprockets to feature the strength of billet steel and added critical functioning features. The billet steel durability, 9-keyway induction-hardened crank sprocket, .250 True Roller chain, and precise CNC machining together offer quality and adjustability unmatched in their class. Features include: • Billet steel cam sprocket • Induction heat-treated billet steel crank sprocket • 9 keyways allow +/- 8 degrees • Adjustability in 2 crank degree increments • True Roller chain with .250 in. diameter rollers

4.59 out of 5 stars ( 150 )

$91.99

Chevrolet Performance Lifter Guides

Keep your lifters in their proper place with these Chevrolet Performance lifter guides! These guides feature durable steel construction and are offered for a variety of applications.

5.0 out of 5 stars ( 5 )

$8.99

Cloyes Heavy-Duty Timing Sets

Cloyes heavy-duty timing sets supply everything you need from a timing chain—performance and reliability. The cam sprockets are machined from cast iron with billet steel crank sprockets. Cloyes heavy-duty timing sets are available in single or double roller versions and offer .200 in. (for small blocks) or .222 in. (for big blocks) diameter double roller chains. Cloyes heavy-duty timing sets are considered the industry's most reliable workhorses. They're engine- or model-specific; order the set designed for your application.

4.45 out of 5 stars ( 296 )

$55.99

Cloyes Race Billet True Roller Timing Sets

Cloyes Race Billet True Roller timing sets provide race-ready performance! These sets feature sprockets machined from premium billet steel on state-of-the-art CNC equipment to ensure the highest quality and consistency. The sprockets are induction-hardened and oil-quenched by Cloyes' in-house, multi-stage heat treat process. Sets include a Cloyes Premium True Roller chain—which features full roller action and superior strength. Side plates are cut and shaved from high-strength steel and are heat-treated for maximum fatigue resistance. Their .250 in. rollers are cold-rolled and hardened to exacting standards, increasing load and rpm capabilities. Cloyes Race Billet True Roller Speed Sets are offered with a choice of 3-or 9-keyway crank sprockets, providing multiple valve timing settings. These sets are hand-matched to qualify center distance and runout, ensuring the best performance with every set!

4.59 out of 5 stars ( 100 )

$131.99

$139.99

Cloyes Hex-A-Just Timing Sets

With Cloyes Hex-A-Just timing sets, infinitely adjustable cam timing is as simple as turning an Allen wrench. Consisting of SAE 1144 billet steel cam and crank sprockets and a true roller timing chain, these timing sets use a special hex-head bushing installed on your cam's dowel pin. This bushing lines up with degree marks on the cam sprocket. You can adjust timing in fractions of a degree (as much as +/-6 degrees) by loosening the cam bolts and turning the bushing with an Allen wrench. Cloyes Hex-A-Just timing sets install under your stock timing cover and can be used in align-bored blocks. Order the model designed for your vehicle and engine application.

4.65 out of 5 stars ( 34 )

$176.99

$204.99

Cloyes Original Race True Roller Timing Sets

Cloyes Original race true roller timing sets feature full roller-action chains made from high-strength steel for superior durability. The cam sprockets are made from heat-treated cast or ductile iron, while the crank sprockets are machined from heat-treated, high-carbon steel for strength. With three keyways for adjustability (4 degrees advanced, 4 degrees retarded, and normal), Cloyes Original race true roller timing sets are hand-matched to ensure precise chain tension.

4.83 out of 5 stars ( 47 )

$130.99

$155.99

Trans-Dapt Performance Timing Covers

Add a custom look to your engine without breaking the bank with timing covers from Trans-Dapt. They feature stamped steel construction in a chrome or powdercoated finish to add just the right look to your project. Their durable finish cleans up easily to provide lasting good looks under your hood.

3.49 out of 5 stars ( 41 )

$22.99

$26.99

Melling Camshaft Bolt Lock Plates

Melling camshaft bolt lock plates prevent your camshaft bolts from loosening, helping you avoid costly valvetrain and engine damage. These kits are easily installed by applying torque to bolts properly and bending the locking tabs in place to secure the bolts. Melling camshaft bolts and lock plates are manufactured to stringent specifications using high-quality materials and manufacturing processes to ensure maintenance-free performance.

Not Yet Reviewed

$6.99

Chevrolet Performance Replacement Valves

Chevrolet Performance offers intake and exhaust valves for a wide range of applications, from 1955 and up. These replacement valves are designed to increase gas flow for more power. Strengthen your valvetrain with genuine factory-recommended parts; order the size needed for your vehicle.

5.0 out of 5 stars ( 3 )

$22.99

$25.99