Availability
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 )
$48.73
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$742.49
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.
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$7.06
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$79.35
PRW billet steel main caps raise the bar in the high performance industry. The main caps are precision-machined from high strength steel, which offers both the proper balance of strength and flexibility to allow transfer of increased shock loads to the crank and bearings. These main caps stabilize the entire crankshaft rotating assembly in your high-performance engine by eliminating annoying cap walk, and reducing main bearing bore distortion. With a combination of top-quality performance components and reasonable pricing, we know that when you receive your new PRW billet steel main caps, you will have no trouble seeing what the excitement is all about!
( 3 )
$318.63
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$332.52
On Sale
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 )
$122.10
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$131.93
$103.78
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$112.14
PRW Sportsman steel foot style 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 PRW Power designed foot tip minimizes scrubbing from the valve stem pushing forcefully against the valve guide. PRW Sportsman steel rocker arms are an excellent performance alternative to stock rockers. They are designed to work on your stock rocker shafts. Order the set recommended for your specific vehicle and engine size.
Not Yet Reviewed
$386.91
PRW rocker arm shims are available for your Chevy, Ford, and Mopar setups. Each kit includes several shims in three different thicknesses to gain the ideal fit for your rockers. Choose the set created for your vehicle.
( 4 )
$24.81
PRW shaft-mount rocker arm hold-down kits are designed to help rocker arm shaft maintain roundness with attaching torque. Manufactured to OEM Mopar specifications to ensure the highest quality, the kits contain the hold-down retainers and bolts to secure both rocker arm shafts. Order the kit recommended for your specific vehicle and engine size.
( 1 )
$123.30
PRW Dodge Cummins rocker arm systems are the perfect upgrade to provide more power and run your diesel engine more efficiently. Each rocker is made from alloy steel substantially stronger than stock. PRW Cummins shaft systems are manufactured to exceed OEM specifications as a "drop in" assembly using the stock arm ratios. The upgraded rocker arm systems are complete with everything you need, from ball adjusters and fasteners, along with silicon bronze bushings instead of OEM-style needled bearings for prolonged life expectancy. Note: some applications are pre-machined for high performance cylinder head stud kits.
( 1 )
$542.77
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$583.90
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 )
$595.92
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
$178.56
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$291.47
On Sale
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
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$187.59
$159.45
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.
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$247.86
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$270.49
On Sale
PRW SFI-rated racing dampers are perfect for the weekend warrior or the all-out racer! Many features have been added to broaden the spectrum of fitment and adaptability. The inner hub and outer ring are manufactured from high-quality billet steel forgings, with heated elastomer injected between the two components parts. Their inner and outer grooved ridgelines further secure the inner hubs to the outer rings. PRW dampers are available in a black epoxy or polished steel with an epoxy clearcoat, and meet SFI 18.1 specifications. Features and specs include: * Manufactured from high-grade billet carbon steel forgings * Accurate crank bore for proper pressed-fit * Easy-to-read laser engraved timing marks * Externally balanced dampers include removable counterweights
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$273.18
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$275.26
$232.20
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$233.97
PRW main cap stud kits help eliminate main cap walk and also protect the threads in your engine block. The main cap studs work with the main caps to help strengthen the foundation for your next high horsepower build. These main cap fasteners come complete with hardened parallel-ground washers and quality hex-style nuts. Add confidence in the strength of your engine build when you use these PRW main cap stud kits.
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$221.09
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$280.73
For maximum performance and longevity, PRW offers heavy-duty rocker shafts to keep your valvetrain inline. These rocker arm shafts are precision-made from quality material and are induction-hardened for strength and durability. Mount your rocker arms with confidence with PRW rocker arm shafts. Order the rocker arm shaft application best suited to fit your needs.
( 1 )
$163.30
Strengthen your Dodge Cummins with a new PRW Fulcrum upgrade kit for your Dodge Cummins Diesel. These rocker arm Trunnion-style upgrade kits are designed to upgrade your rocker arms to a bronze, bushed assembly and helps alleviate rocker body wear. Bushings are ensured lubrication with oil flow channels machined into the fulcrum. Sold individually, or as set of 12.
Not Yet Reviewed
$21.16
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$143.83
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.
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$154.95
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$336.80
Secure your valve covers to your cylinder heads with PRW valve cover fasteners that are dependable and durable. Valve covers may be attached by fastener bolts around the perimeter, with center bolts through the top, or both. Made with high precision, these valve cover fasteners keep everything in place when the engine is operating at high speed. The fasteners are offered in a choice of chrome or black oxide finishes. Be sure to select the valve cover fastener kit that matches your thread size and fastener count.
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$16.63
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$18.03
Secure your rocker arm shafts with PRW rocker arm shaft support kits. These kits consist of hardened steel hold-down clamps, along with shank, fasteners, spacer, and shims to properly hold your rocker arm shafts in place. They're for use for aluminum and stainless steel rocker arms. Order the kit recommended for your specific vehicle and engine size.
Not Yet Reviewed
$119.75
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$120.08
PRW harmonic balancer counterweights contribute to balancing your rotating assembly. These steel weights are removeable, available in different weights, and feature a black chromate finish. Choose the weight needed for your damper.
Not Yet Reviewed
$15.71
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$22.13
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
$220.35
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