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25 Results Found For "polylocks"
Showing In Stock Items. Show All 29 Items.
Summit Racing™ Cast Steel Roller Tip Rocker Arms
For the hardest working part of your valvetrain, use Summit Racing™ cast steel roller tip rocker arms. Our chromoly steel long-slot rockers will give you a long service life and allow for less deflection and valve guide scrubbing. Each rocker features a precision-ground roller and includes a grooved, heat-treated rocker ball and nut.
( 106 )
$140.99
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$182.99
Summit Racing™ Rocker Arm Stud Girdles
A stud girdle distributes load across all the studs, adding strength and rigidity to the valvetrain. Summit Racing™ rocker arm stud girdles stabilize your valvetrain to gain maximum valve lift. Our double-bar design girdles are made from 6061 aluminum and anodized black. They are lightweight, durable, and add strength by tying all 8 studs together. Summit Racing™ rocker arm stud girdles include polylocks and Grade 8 bolts.
( 6 )
$123.99
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$235.99
AFR Rocker Arm Stud Girdle Replacement Nuts
AFR rocker arm stud girdle replacement nuts are designed to keep your rocker arms in place, while accepting an AFR double bar stud girdle. They are available in your choice of 3/8 in. or 7/16 in. thread sizes, select the rocker arm stud girdle replacement nuts best suited to fit your application.
( 8 )
$113.00
Pioneer Rocker Arm Adjusting Nuts
These Pioneer rocker arm adjusting nuts are designed for use with stamped steel rocker arms. These polylock nuts include Allen screws and a wrench.
( 4 )
$111.99
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$177.99
PRW Billet Rocker Arm Stud Girdles
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 )
$182.46
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$243.41
Isky Rocker Arm Adjusting Nuts
All Isky rocker arm adjusting nuts are designed for the ultimate in strength and locking force. The polylocks are precision-ground for minimum runout, and tapered for extra strength in the locking area. The special alloys in the polylocks ensure a quality and strength not found in any other competitive products.
( 1 )
$146.99
COMP Cams Rocker Arm Adjusting Nuts
COMP Cams rocker arm adjusting nuts are designed for the ultimate in strength and locking force. They are precision-ground for minimum runout and are tapered for extra strength in the locking area. The special alloys in the polylocks ensure a quality and strength not found in any other competitive products.
( 148 )
$109.95
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$152.95
Proform Rocker Arm Stud Girdles
Proform's rocker arm stud girdles reduce flex and part breakage. They increase valvetrain rigidity, which in turn helps minimize energy loss. Each set comes with aluminum stabilizers and polylocks.
( 7 )
$140.99
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$149.99
Prothane Motor and Transmission Mount Kits
Prothane offers a wide variety of motor and transmission mount kits. In all cases, their mounts are built to limit the travel, reduce the chance of breakage, and put the power to the wheels. The transmission mounts are designed to control torque and eliminate breakage. They feature application-specific engineering. In other words, they're not universal in fit, and they provide you with the performance you demand. If applicable, the mounts feature a polylocked "run-safe" feature, just in case you play way too hard, so you can still get back home.
( 30 )
$146.22
Engine Works Stainless Steel Rocker Arms
Engine Works offers stainless steel rocker arms for a wide range of applications, including many small block Chevy and Ford engines from 1955 and up. The sets are available in 1.5, 1.6, or 1.72 rocker arm ratios, and 3/8 in. or 7/16 in. stud sizes. Details: * Full roller rocker arm style * Premium high quality stainless body * Oversized full needle trunnion and roller tip * .650+ in. max lift capability * Eliminate deflection at max RPM * Polylocks included * Set of 16
Not Yet Reviewed
$248.71
Summit Racing™ Pro Series Stainless Rocker Arms
Summit Racing™ Pro Series stainless rocker arms will pay big dividends in performance! The arms are machined from premium-quality material to provide high yield strength and resist deflection, as well as extraordinary fatigue resistance. They feature full complement friction-reducing needle bearings—and incorporate an exceptional design that provides plenty of clearance for higher open valve spring pressures. Each rocker body includes polished top lines and is carefully assembled and inspected to provide the finest rocker arms available in today's racing and high performance industry. Order the set with size and ratio recommended for your engine application.
( 38 )
$234.99
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$244.99
On Sale
Proform Super-Street Roller Rocker Arms
These Proform Super-Street roller rocker arms will help rid your engine of internal friction. They feature a race-proven, cage bearing fulcrum and roller tip. The Super-Street rocker arms not only unleash horsepower, but they also lengthen valvetrain component life and reduce wear and tear on valve stem tips. Proform rockers are precision-machined to ensure consistency and ratio accuracy, and they have a great looking anodized finish.
( 129 )
$229.99
$172.49
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$245.99
COMP Cams High Energy Diecast Aluminum Rocker Arms
Finally, you can get high performance without a high price with COMP Cams High Energy diecast aluminum rocker arms. COMP Cams is a leader in valvetrain technology and has developed these High Energy rockers to provide a superior strength to weight ratio to withstand the hardships of your street performance and mild race engines, while adding valve lift. These diecast aluminum, larger-than-stock rocker bodies are designed to be stiffer and more durable. They feature needle-bearing fulcrums and roller tips to reduce friction and lower oil temperatures for even more horsepower potential. Maybe you're on a budget, or maybe you just appreciate getting the most for your coin; make an affordable choice without sacrificing performance--get COMP Cams High Energy diecast aluminum rocker arms.
( 223 )
$133.95
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$249.95
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
( 25 )
$150.64
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$207.43
On Sale
Summit Racing™ Rocker Arm Pro Packs
Increase horsepower with one of these Summit Racing™ rocker arm Pro Packs. They include a set of chromoly steel roller rocker arms to help rid your engine of internal friction. They feature a race-proven, full needle-bearing fulcrum and roller tip. Not only do the Summit Racing™ rocker arm Pro Packs unleash horsepower, but they also lengthen valvetrain component life and reduce wear and tear on valve stem tips. The rocker arms are precision-machined to ensure consistency and ratio accuracy and they have a great looking anodized finish.
( 14 )
$261.98
$204.48
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$221.98
COMP Cams Pro Magnum Roller Rocker Arms
COMP Cams Pro Magnum roller rocker arms combine the strength of 8650 chromoly steel and the weight savings of aluminum rockers. took advantage of computer design to simulate the stresses that affect rockers under various operating loads. This allowed the engineers to lessen the rockers' mass at non-critical areas, and strengthen the areas that take the most punishment. The results were rocker arms that are strong where they need to be, and actually weigh 5 percent less at the valve than comparable aluminum rockers. This means more RPM and valve train stability.
( 16 )
$249.95
COMP Cams Ultra Gold ARC Series Aluminum Rocker Arms
Designed specifically for high performance street and race engines, COMP Cams Ultra Gold ARC Series aluminum rocker arms are precision CNC-machined to strict tolerances. They incorporate modern technology and design features to create the most advanced aluminum rocker arms available. Proven to withstand extremely aggressive spring pressure, the COMP Cams Ultra Gold ARC Series aluminum rocker arms use their CNC-machined aluminum design for high quality and the ultimate in ratio accuracy.
( 116 )
$232.95
Trick Flow® Rocker Stud Girdles for Ford
These CNC-machined Trick Flow® stud girdles for Ford help control valve lift and timing changes due to stud flex, allowing for more consistent high-rpm performance. Each stud girdle is anodized blue and comes with high-quality mounting hardware and hardened adjusting nuts. Tall-style valve covers are required.
( 10 )
$206.99
COMP Cams Ultra Pro Magnum Rocker Arms
Utilizing years of valvetrain design experience, the latest FEA stress analysis technology, and an exhaustive testing regiment (dyno and Spintron), COMP Cams engineering team left no detail to chance. Everything from casting techniques to valve spring clearance was scrutinized to ensure that Ultra Pro Magnum rocker arms not only lived up to the lofty standards of their predecessor, but also took stud mount rocker performance, stability, and value to a whole new level. The most noticeable advancement centers around their nearly unbreakable investment cast 8650 chromoly body. The arched, web-like design delivers a nearly 29 percent increase in strength and rigidity, while reducing the moment of inertia and optimizing the dynamic balance. The resulting rockers maximize lift and valvetrain control at high rpm. The increased retainer and valve spring clearances of the new design enable the use of large-diameter valve springs, retainers, and locks, without clearance or fitment issues. The new black oxide exterior finish offers a distinctive appearance, along with long-term corrosion resistance. The COMP Cams Ultra Pro Magnum rocker arms feature an oversized trunnion and precision-sorted needle bearings designed for use with high-load valve springs. These unique rockers also feature hardened roller tips for reduced friction and elimination of the valve stem "side loading" that causes premature valve guide wear.
( 209 )
$249.95
COMP Cams Magnum Roller Tip Rocker Arms
One way to increase power is to increase lift. That's what makes COMP Cams Magnum roller tip rocker arms so popular. They're one of the highest lift rockers you can get outside of racing. And, along with the lift, you also get a ball pivot roller tip to prevent valve stem and guide wear.
( 291 )
$217.95
Trick Flow® Rocker Stud Girdles for Chevy
These Trick Flow® rocker stud girdles for Chevy are CNC-machined and help control valve lift and timing changes due to stud flex, allowing for more consistent high-rpm performance. Each stud girdle is anodized blue and comes with high-quality mounting hardware and hardened adjusting nuts. Tall-style valve covers are required.
( 5 )
$228.99
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 )
$230.18
Engine Works Performance Series Aluminum Rocker Arms
Engine Works offers Performance Series aluminum rocker arms for a wide range of applications, including many small block Ford engines from 1962 and up. The rocker arms are available in 3/8 in. or 7/16 in. stud size. Details: * Performance Series * Full roller style * 6061-T6 extruded aluminum * 1.6 rocker arm ratio * Set of 16
Not Yet Reviewed
$248.99
COMP Cams Stud Girdles
COMP Cams is proud to offer the finest stud girdles on the market. These stud girdles will tie your studs together, as well as keep them in line.
( 24 )
$183.95
