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PRW Platinum Series Shaft-Mount Rocker Arms
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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$816.92
PRW Sportsman Steel Roller Tip Rocker Arms
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
( 32 )
$12.31
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$383.77
PRW Cylinder Head Stud Kits
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 )
$109.95
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$782.96
PRW Elite Series Stainless Steel Full Roller Rocker Arms
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
$488.61
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$580.58
PRW Pro Series Billet Aluminum Rocker Arms
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
( 12 )
$25.00
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$417.65
PRW Pedestal-Shaft Rocker Arms
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 Fabricated Valve Covers
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 )
$190.46
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$304.19
PRW Rocker Arm Studs
PRW rocker arm studs are premium engine fasteners, made from strong, heat-treated 4135 chromoly steel with rolled threads. They're designed to securely hold rocker arms in place, handling the extreme forces in race and high performance engines for reliable valvetrain operation. The studs are crucial for securing the rocker arms that open and close engine valves, often paired with poly locks and used in upgraded systems for better durability and performance than stock parts. Order the set recommended for your vehicle. Additional product details: * Material: Cold-formed from 4135 chromoly alloy steel for maximum strength * Construction: Rolled threads provide superior durability and resistance to stripping * Application: Engineered for high performance and racing engines where stock studs might fail * Function: They act as threaded posts in the cylinder head, anchoring the rocker arms and associated hardware (like poly locks) * Durability: Standard components can bend or break under high spring pressures and aggressive valve lift * Reliability: PRW studs provide a secure, dependable foundation for the valvetrain in demanding conditions * Upgrades: Essential when upgrading to stronger rocker arms or higher-rate valve springs
Not Yet Reviewed
$3.89
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$48.23
PRW Power Plus Nitro-Carb Steel Rocker Arms
PRW Power Plus Nitro-Carb steel stud mount rocker arms help flex associated with OEM or aftermarket stamped rocker arms at high rpm. Gas nitride is a process is used to increase surface hardness significantly. When combined with high-grade steel rocker bodies, the result is improved durability, better lubrication and less wear on rocker arms and pushrods. The added benefit is a dramatic increase in the stability of the rocker arm when used with higher valve spring pressures. These Nitro-Carb rocker arms are an excellent choice for circle track racers looking for the extra performance "edge" when used in conjunction with other component parts. The rocker arms are designed with a long slot for 3/4 race and mild performance camshafts. OEM design elements with standard rocker arm pad meet most circle-track sanctioning body rules and regulations. Order the rocker arms for your application needs. Benefits/Characteristics: * Nitro-Carb rocker arms specifically designed for higher spring pressures and hardened pushrods * Racing or performance replacement rockers for engine rebuilds with stock or PowerPlus+ Cams * Reduced noise and slop the flex associated with worn or lesser quality stock rocker arms * Adjusting nuts and pivot balls are included where required for installation * Long slot for 3/4 race and mild performance camshaft compatibility
Not Yet Reviewed
$99.38
PRW Sportsman Steel Full Roller Rocker Arms
PRW offers Sportsman steel full roller rocker arms for a variety of applications, including select Chevy and Ford engines from 1997 and up. Designed for those who demand the best in precision, strength, and efficiency, these cutting-edge rocker arms take your engine's performance to new heights. They feature direct oil feeding, nose roller axel (which is precision-machined for a tight-fit smooth motion), and E-coated rocker bodies. This all combines to deliver superior power, smoother operation, and unmatched durability under the most demanding conditions. Order the set recommended for your vehicle. Benefits/characteristics: * Rated up to 650 lbs. open spring pressure * Direct oil feed technology * 25 percent narrower roller reduces mass over the valve for additional RPM * 30 percent stronger than OEM body * Bolts included
Not Yet Reviewed
$383.77
PRW Dual Gear Drive Timing Sets
PRW Dual Gear timing sets eliminate the stretching and premature wear common with timing chains. These dual idler gear drives fit under most timing chain covers with little to no machining, and offer more stability than single gear drives. The steel alloy gears provide longevity, and are available in noisy or quiet versions for most applications. Replace your old-school timing chains with more reliable PRW Dual Gear timing sets. Order the set recommended for your specific vehicle and engine size. Features, items, and specs may include: * Easy to install * SAE 660 bronze thrust ring * Rugged gear drives offer high-precision timing * Axial needle and cage thrust bearings and/or silicon bronze bushings reduce friction * Offset bushings for easy cam indexing and timing changes (for most applications) * PRW extreme-pressure assembly lube and threadlocker
Not Yet Reviewed
$179.95
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$229.95
PRW Rocker Arm Shaft Stands
PRW Power rocker arm shaft stands are components that hold rocker arms on a central shaft instead of individual studs, providing greater rigidity and stability in high performance engines. These stands are made from strong billet 7075 aluminum and are designed to reduce flex, improve alignment, and ensure proper rocker arm function during high-RPM operation. They're crucial for high-horsepower applications, especially those involving aggressive engine builds, high-lift camshafts, and racing. Function and benefits: * Increased rigidity: The reinforced shaft-mount design eliminates the flex associated with single-stud mounts, allowing the system to handle higher loads. * Improved stability: By holding the rocker arms in a fixed, parallel position on the shaft, the stands ensure precise valve motion and consistency. * Enhanced durability: They are built for high-RPM and high-pressure applications where traditional rocker systems might fail. * Valvetrain geometry: They maintain proper rocker arm geometry and alignment, which is essential for a well-performing engine. How they are used: * Shaft-mounted system: Unlike standard rocker arms that mount on individual pushrod guide studs, shaft-mount rockers are mounted as a set onto a rigid steel shaft. * Stand components: The "stands" or "pedestals" are the parts that are bolted to the cylinder head and provide a mounting point for the shaft itself. * Installation: Proper installation is critical and involves checking the roller's sweep across the valve tip to ensure it is aligned correctly.
Not Yet Reviewed
$85.02
