Availability
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
( 10 )
$19.50
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$319.74
PRW High Performance Sportsman harmonic dampers are cast from nodular iron, and are suitable for engines generating up to 400 hp. Unlike most OEM dampers, the hub and ring are splined to prevent radial movement of the outer ring. These dampers are 30 percent stronger than OEM dampers made from gray iron. With the combination of top-quality and affordability, these PWR dampers really raise the bar in the high performance industry. Features and specs include: * Ideal for street rebuilds * Accurate crank bore for a proper pressed-fit * Externally balanced dampers include removable counterweights * Available in black with laser-etched timing marks * Not SFI-certified
( 37 )
$135.14
PRW offers several water pump pulleys to work with PRW, as well as other water pump brands. Their selection is CNC-machined from billet aluminum or steel and is available in several finish options, adding not only performance but style to your cooling system.
( 1 )
$127.09
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$151.89
PRW Industries offers Competition Series aluminum shaft rocker arms for a variety of engine applications. In 2017, the PRW product development team recognized the need for an affordable collection of shaft rocker systems that would cost about the same as a set of roller rockers, new rocker arm studs, and a stud girdle. These assemblies were designed with the sportsman racer in mind, and provided for longer pivot length rockers, various rocker ratios, adjustable stand heights—and implemented simple installations with minimal valve adjustments throughout the racing season.
( 1 )
$791.07
PRW cylinder head stud kits offer heavy-duty fasteners, along with 12-point nuts and washers for Ford Powerstroke engines. These replacement studs are machined from 4135 chromoly steel and finished with a black oxide. They provide superior clamping power, compared to the stock bolts—which will solve the problem of head gasket failure caused by increased cylinder pressure.
( 1 )
$269.96
PRW Elite Series SFI-rated racing FluidGel dampers are made with an internal steel inertia ring that is surrounded by a high-viscosity silicone gel. The inertia ring "floats" in the silicone gel to combat the engine harmonics at all rpm ranges. The external balance applications feature a removable hub in order to accurately blueprint the engine and balance the assembly. These dampers are available in a black epoxy finish or a polished steel with an epoxy clearcoat. Order the damper suited to your application. Features and specs include: * Manufactured from billet carbon steel forgings * Easy-to-read laser-engraved timing marks * Meets SFI 18.1 specification * Accurate crank bore for a proper pressed fit * Externally balanced dampers include removable counterweights
( 11 )
$285.74
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$342.32
PRW Sportsman steel roller tip rocker arms are an ideal choice for a significant cross-section of engines. Anything from a mild street rebuild to the performance demands of off-track, Circle Track, and drag racing. These 4340 chromoly steel rocker bodies feature a longer pivot slot for higher lift camshafts. They're much stronger than stamped steel, so rocker arm flex is negligible. The roller tip minimizes scrubbing from the valve stem pushing forcefully against the valve guide. This reduces friction and frees up an additional 15 to 30 hp over stock models. PRW Sportsman steel roller tip rocker arms are an excellent performance alternative to stock rockers. 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 * PRW RockerLocs * Rated at 350 lbs. open spring pressure * Heat-treated pivot balls
( 34 )
$12.31
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$204.78
PRW fulcrum upgrade kits for the GM LS Series engine are designed to improve your valvetrain performance by enhancing the rocker arms. They include replacement fulcrums, circlips, and fasteners. From there, you can decide on either drawn cup bearings, or silicone bronze bushings to complete your full set of 16. Transform your stock LS Series rocker arms into powerful performance trunnions with a fulcrum upgrade kit from PRW!
( 7 )
$138.68
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$190.02
PRW harmonic damper bolts help hold your balancer properly locked in place as they absorb the massive energy from crankshaft flexing. Professionally designed to withstand 180,000 psi fastener yield strength, they also include a wide-area 1/4 in. thick washer to further spread the fastening load. For installation ease, these bolts feature a deep-socket, 12-point head-style so your torque wrench stays fully engaged up to spec. Show your knuckles some mercy--complete your install with PRW harmonic damper bolts. Order the bolt recommended for your specific vehicle and engine size.
( 9 )
$33.50
PRW Pro Series billet aluminum rocker arms offer outstanding power and performance advantages for street, strip, and track applications. Laboriously made from high-strength 6061 T-6 aluminum extrusions, each piece is precision CNC-machined, and hand-finished to ensure the quality you expect from PRW. These stud-mount rockers are purposely machined to graciously allow for larger springs and retainers, with full-cage, friction-reducing needle bearings for added durability. PRW Pro Series billet aluminum rocker arms are used around the world by professional racers, engine builders, and hot rod enthusiasts. 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 * PRW RockerLocs * Heat-treated steel nose rollers and shafts minimize wear between roller tip and valve stem * Rated at 750 lbs. open spring pressure * Internal oiling system for long-lasting performance * Distinctive blue anodized finish
( 13 )
$261.12
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$370.01
PRW billet rocker arm stud girdles are made from 6061-T6 aluminum, manufactured to exacting standards, and the solution to valvetrain instability. PRW stud girdles reduce rocker stud flex to retain critical valve lash adjustments. The result is more accurate valve lift and timing. PRW stud girdles are relieved at the factory to accommodate crankcase evacuation components without the need to visit your local machine shop. These products come complete with PRW RockerLocs. Grab yours today!
( 9 )
$190.92
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.
Not Yet Reviewed
$775.05
PRW timing covers are built to the highest quality standards to ensure an excellent fit and leak-free seal. They're available in various materials, finishes, and configurations for fitment on specific make/model and engine applications. Choose the timing covers designed to fit your application.
( 1 )
$489.94
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
PRW rocker arm bolts are offered in different underhead lengths, either individually or in sets of different quantities. They are manufactured from premium steel and treated with a black oxide finish. Choose the preferred size to meet your application needs.
Not Yet Reviewed
$23.73
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$41.52
PRW rocker arm adjuster screws are designed to thread into your rocker arm. They are made of hardened steel and feature a black oxide finish for maximum durability. The screws can be adjusted to the pushrod by using the internal Allen head and the 12-point locknut.
( 7 )
$7.33
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$9.86
PRW fabricated valve covers give your engine an edge and awesome looks. Attention vintage racers, competition junkies, and machining enthusiasts trying to save weight, PRW covers are fabricated from 6061 T-6 aluminum alloy, and have successfully endured rigorous individual pressure testing, proving that they are built to last. Their incredible ability to withstand the harsh elements of racing makes them the perfect solutions for street rod and racing applications. PRW fabricated valve covers are offered in different mounting styles, heights, finishes. They all feature thicker rails and better materials to assure long-lasting durability, and they include fasteners for a no-hassle install.
( 16 )
$298.23
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$304.19
PRW offers billet steel timing sets for a variety of engine applications—including small block, big block, LS, Cleveland, Hemi, and others. They're available in single- or double-roller timing chain styles; with cam gear, crank gear, and thrust bearings also included. Order the set recommended for your vehicle.
Not Yet Reviewed
$153.76
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$219.50
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
( 10 )
$816.92
High-rpm can cause fluctuation in your valvetrain, leading to damaged parts. Add strength and stability in your valvetrain with PRW rocker arm pedestals and stands.
Not Yet Reviewed
$173.37
PRW pushrod guideplates (PowerPlus+) are made from high-treated steel alloy to prevent premature wear—and are black oxide coated to resist corrosion. They make valve operation smoother and more efficient, reducing unwanted sideways motion of the pushrod. These guideplates are recommended for use with high performance hardened pushrods.
( 1 )
$6.36
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$33.00
Clearance
PRW LS OEM upgrade rocker arms are designed as drop-in systems to replace the OEM valvetrain. These 1.7 ratio x 8mm rocker arms install easily on your LS cylinder heads without any necessary modifications. They include drawn cup needle roller trunnion bearings. Increase horsepower and strengthen your valvetrain with PRW LS OEM upgrade rocker arms. Order the kit that matches your specific model.
Not Yet Reviewed
$24.41
$17.50
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