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 )
$797.25
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$816.92
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.
( 6 )
$210.84
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$384.75
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
( 13 )
$286.68
Take your engine's performance to new heights with PRW Elite Series stainless steel full roller rocker arms, are engineered for maximum strength, speed, and precision. They are built for serious racers and performance enthusiasts who demand superior control and durability. Precision engineered with Direct Oil Feed Technology, a tight-fit nose roller axle, and E-Coated stainless steel rocker bodies, this series delivers smoother motion, increased RPM potential, and unmatched long-term reliability under extreme conditions. Features: * Rated up to 1000 lbs. open spring pressure * Direct Oil Feed Technology for enhanced lubrication and performance * 25% narrower roller reduces valve-end mass for higher RPM response * Precision-machined nose roller axle for smooth, friction-free motion * 12-Point polylocks included for secure, hassle-free installation
Not Yet Reviewed
$531.54
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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$134.24
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.
( 10 )
$20.04
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$33.50
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 )
$244.95
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$424.66
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.
( 1 )
$474.10
PRW Main Cap Side Bolts uses premium grade Custom 4135 Steel rated at "aircraft" quality. Their side bolts are then specially heat-treated to 180,000 psi. This heat-treating procedure allows for total heat penetration which results in a stronger, more superior stud compared to lesser quality studs from other manufacturers. PRW main cap side bolts are then centerless ground after being heat treated and then thread rolled which assures better fatigue strength than having this process done before heat treatment. This manufacturing process may cost more to do but the results are well worth the extra effort.
Not Yet Reviewed
$25.98
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 )
$383.77
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 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!
( 3 )
$138.68
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
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$178.37
Clearance
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
( 6 )
$31.55
$19.50
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$474.10
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
$196.44
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$291.47
Fit an early design (non-LS) automatic transmission to your Gen III/IV engine with PRW crankshaft adapters. The are machined from steel and given a black surface finish.
Not Yet Reviewed
$46.08
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's pulley girdle strengthens the water pump pulley for supercharger applications, and PRW offers the right flange bolts to brace the pulley properly. Included in the girdle kits, they are also conveniently offered as replacements, providing the correct fit and reliable performance, matching that of the originals. Service your PRW water pump pulley girdle with PRW flange bolts.
Not Yet Reviewed
$8.38
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 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
$3.05
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$115.38
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 )
$63.86
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
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
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