PRW Power High-Performance Engine Parts

PRW Rocker Arm Pedestals and Stands

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 Water Necks

PRW water necks are available with a rubber O-ring or a standard paper gasket for a leak-free seal. They're made from cast or billet aluminum, straight or angled, with either a natural or polished finish. Order the model recommended for your engine application.

Not Yet Reviewed

$24.10

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$54.99

PRW Stainless Steel Rocker Arms

PRW offers stainless steel rocker arms for a variety of applications, including many Chevrolet, Ford, American Motors, Oldsmobile, and Pontiac vehicles from the 1930s and up. They incorporate an exceptional design that provides plenty of clearance for large diameter springs. These rocker arms are manufactured from premium quality 17-4ph stainless steel, a superior alloy that is high in nickel and chromium. This rigid premium material provides high yield strength to help resist deflection and has extraordinary fatigue resistance. PRW stainless steel rocker arms feature full cage friction-reducing needle bearings and extra-large trunnions to spread out the load and reduce wear. The nose rollers and shafts are Cr40 steel, heat-treated and hardened to resist the severity of racing and to minimize scrubbing. Each rocker body is hand-polished, assembled, and carefully inspected to provide customers with some of the finest quality rocker arms available to the racing and performance industry. Available as a set with poly locks or sold individually. Product highlights: * Lightweight design * PRW poly locks included * CNC-machined pushrod cups * Heat-treated Cr40 steel rollers and shafts * Manufactured from 17-4ph stainless steel * Features full complement friction-reducing needle bearings * Wide assortment of ratios to suit almost any cam profile

Not Yet Reviewed

$326.14

PRW Black Label Special Edition Flexplates

Introducing the Black Label Special Edition flexplates—the newest addition to PRW's flexplate lineup that meet the SFI 29.1 specification, which is a significant improvement over the OEM flexplates. The Black Label Special Edition Series flexplates are available for most Chevy, Ford, and Hemi applications. All of these applications conform to all published SFI standards, with the added benefits to the racing and performance builder that is looking for and demands the best in quality and engineering. Choose the model designed for your application needs. Key features: * Exceeds SFI Specification 29.1 * Perfect for road racing and lighter vehicles * Several fitment options for early-to-later model transmission swaps * Compatible with most aftermarket racing and high-performance torque converter bolt patterns

4.67 out of 5 stars ( 6 )

$132.36

PRW Gold Series Flexplates

PRW Gold Series flexplates are engineered to handle extreme duty applications and designed to endure the punishment of modern high horsepower engines. The 4mm thick centerplate provides a solid foundation for these direct bolt-on drivetrain components. Ring gears are precision double-welded, utilizing robotic machinery and cold-welding processes for added durability. These flexplates are rigorously inspected throughout the manufacturing cycle to ensure you receive the expected quality. They are available in a wide variety of configurations to precisely match your application. Raise the bar on your high performance vehicle with PRW Gold Series flexplates. Order the style recommended for your specific vehicle and engine size. Features and specs: * Designed to fit standard OEM, aftermarket replacement, and high performance torque converters * SFI 29.1 certified * Forged one-piece steel ring gears * 0.035 in. thicker than stock flexplates * Constructed from cold-rolled chromoly steel * Long lasting yellow zinc plated finish

4.06 out of 5 stars ( 48 )

$103.18

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$120.17

PRW High Performance Mechanical Water Pumps

PRW High Performance mechanical water pumps are engineered to deliver increased water flow faster. These super velocity pumps significantly improve cooling for all street, high performance, and racing applications. The low pressure-injected, A356 aluminum alloy pump bodies are complemented by a precision, high-flow cast iron impeller design. Pressure-balanced water passages equalize flow and minimize engine hot spots at any speed. PRW High Performance mechanical water pumps are excellent alternatives for not only racers, but also trucks, towing, and motorhome applications. Order the model recommended for your specific vehicle and engine size. Features, items, and specs: * 35 gpm at 4,000 rpm with minimal cavitation and proportional increased flow rates at 5,000+ rpm * Aircraft industry tolerances * Heavy-duty 0.75 in. diameter steel shafts * Billet steel hubs and shielded-seal roller ball bearings * Back plate O-ring sealed for most applications * System Basis Chip (SBC) applications include adjustable hardware

4.06 out of 5 stars ( 31 )

$219.77

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$284.27

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

3.67 out of 5 stars ( 33 )

$163.25

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$204.78

On Sale

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.

5.0 out of 5 stars ( 1 )

$269.96

$229.47

PRW Pro Series Flexplates

PRW offers Pro Series flexplates for a wide range of applications—raising the bar in the high performance industry. The combination of top quality and reasonable pricing sets new standards. These replacements are engineered to handle extreme-duty applications and designed to take the punishment of today's high-horsepower engines. The 4mm thick centerplate provides a solid foundation for these new designs. Ring gears are precision-welded to meet SFI specifications, utilizing robotic machinery and cold-welding process. The steel flexplates are machined for excellence and rigorously inspected throughout the manufacturing cycle to ensure that customers receive the quality they've come to expect from PRW products. Additional details: * SFI 29.1 certified * Direct bolt-on component * Forged one-piece steel ring gears * 0.035 thicker than stock flexplates * Constructed from cold-rolled premium steel * Features double-welded ring gears for added durability

1.0 out of 5 stars ( 1 )

$142.36

PRW Harmonic Damper Bolts

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.

5.0 out of 5 stars ( 10 )

$33.50

PRW Water Pump Pulleys

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.

5.0 out of 5 stars ( 1 )

$127.09

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$252.72

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

1.92 out of 5 stars ( 12 )

$25.00

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$370.01

PRW High Performance Sportsman Harmonic Dampers

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

4.46 out of 5 stars ( 39 )

$148.49

PRW Main Cap Stud Kits

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.

3.5 out of 5 stars ( 6 )

$210.84

PRW Main Cap Side Bolts

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 SFI-Rated Racing Dampers

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

4.33 out of 5 stars ( 15 )

$219.59

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$349.47

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.

3.5 out of 5 stars ( 16 )

$298.23

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$304.19

PRW Pro Series Shaft-Mount Rocker Arms

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.

5.0 out of 5 stars ( 1 )

$474.10

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$775.05

PRW GM LS Series Fulcrum Upgrade Kits

PRW GM LS Series fulcrum upgrade kits are designed to improve your valvetrain performance by enhancing the rocke

Not Yet Reviewed

$153.62

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$190.02

PRW Billet Steel Timing Sets

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 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

PRW LS Series Coil Brackets

Dress up your factory LS valve covers with PRW LS Series coil brackets. Manufactured from billet aluminum, they are polished to a brilliant finish with a protected clear anodizing. These PRW coil brackets include mounting hardware.

5.0 out of 5 stars ( 1 )

$84.88

Clearance

PRW Pro Series Stainless Steel Rocker Arms

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

4.0 out of 5 stars ( 5 )

$31.55

$22.50

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