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41 Results Found For "ratio"
Showing In Stock Items. Show All 53 Items.
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 )
$24.95
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$26.95
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.
( 114 )
$41.95
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$46.95
Chevrolet Performance LS Rocker Arms
Get smooth valvetrain performance! Chevrolet Performance LS rocker arms install easily on your LS cylinder heads without any modifications. Add some additional horsepower and increase your rpm capability with a set of Chevrolet Performance LS rocker arms.
( 3 )
$25.99
Harland Sharp Original Roller Rockers
If you plan on adding performance to your street machine or building a serious racer, Harland Sharp Original Series roller rockers are recommended for you. Using the very latest manufacturing technology and only the very finest materials, the Original Series rockers incorporate race-proven enhancements, such as improved strength, performance, and lighter weight over conventional rocker arm designs. Don't settle for any old rocker arm--go with a true leader in roller rocker arm technology--Harland Sharp.
( 179 )
$24.50
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$42.99
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.
( 290 )
$20.95
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$31.95
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.
( 128 )
$26.99
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$27.99
Trick Flow® Roller Rocker Arms
Accurate valve timing is the key to making horsepower—and Trick Flow® roller rocker arms can help. Excellent for use with stock and aftermarket cylinder heads, these arms feature heat-treated CNC-machined bodies, premium needle-bearing fulcrums, roller tips, and a machined relief for improved valve spring clearance. Trick Flow® roller rockers come complete with polylocks and are offered individually or in sets of 16. They're available in a variety of fitment options for applications from 1955 and up.
( 66 )
$31.99
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$35.99
March Performance Crankshaft Pulleys
March Performance crankshaft pulleys are CNC-machined to run true. These pulleys are available in both standard and underdrive sizes. Underdrive pulleys help to increase horsepower by reducing accessory pulley rotation effort at the crankshaft.
( 239 )
$47.99
Manley Stamped Steel Rocker Arms
Get the horsepower and durability you want at a price that suits you with Manley stamped-steel rocker arms. They're made from high quality, heat-treated steel and feature a longer slot to avoid stud interference. They include anti-gall grooved pivot balls and locking nuts for a quick, easy installation.
( 3 )
$46.01
Scorpion Race Series Rocker Arms
Sting the competition with the full-body design of Scorpion Race Series roller rocker arms. They're precision-crafted via high-tech manufacturing methods, then fully CNC-machined. These rockers offer more clearance for retainers and springs, and can easily handle .950 in. lift and 950 lbs. of open spring pressure. The surfaces are micro-polished and anodized for looks, protection, and maximum durability. Scorpion rocker arms are available in nearly 200 fitment options; order the set recommended for your application. More speed for your high performance passion! Additional features include: * Aerospace-grade 7000 Series aluminum for maximum strength and durability * Needle bearing fulcrum and roller tip * Precision-ground needle bearings * Centerless ground trunnion, ground pin, and roller * Burr-free trunnion through hole * Directed oiling * Large machined seat and thick-walled adjusting nut (polylock) * Pedestals machined from solid steel * Black oxide coated steel parts * 1.600 in. fulcrum width * Clear 1.625 in. O.D. valve springs
( 214 )
$29.99
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$33.89
Summit Racing™ LS Rocker Arms
Summit Racing™ LS rocker arms are high-quality rocker arms that have a pedestal mount, roller fulcrum style, and are made of high-quality ductile iron construction to ensure long-lasting durability and performance. They are moly coated for wear resistance and smoother low friction operation. So, if you're looking for a quality set of rocker arms for your LS motor, Summit Racing™ has the rocker arms for you!
( 2 )
$29.99
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.
( 206 )
$45.95
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$46.95
Summit Racing™ Aluminum Roller Rocker Arms
These rocker arms are CNC-machined from high-strength extruded aluminum and are heat-treated for reliability. These aluminum rockers are available in a variety of ratios for small or big block vehicles. To guarantee silky smooth valve operation, we gave them premium needle-bearing fulcrums and roller tips. Includes lock nuts.
( 75 )
$28.99
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$39.99
Scorpion Off-Road Series Rocker Arms
Scorpion Off-Road Series rocker arms are made for the most demanding endurance demanding off-road applications—which makes them a premium choice for many Jeep models from the 1960s on up! These pedestal-style aluminum arms are available in different ratios, in your choice of either adjustable or non-adjustable configurations and are sold individually or in sets of 12. Order the model needed for your application. Off-Road Series rocker arm features: * Body geometry optimized to deliver a true 1.6 or 1.7 ratio (please specify ratio needed for your application) * Available in both adjustable and non-adjustable configurations * Aerospace grade 7000 series billet aluminum body * Precision ground needle roller bearings * Centerless ground fulcrum and roller * Bearing quality ground 100 carbon steel pin * Steel dual pedestal ensures correct rocker arm to valve alignment * Mounting hardware included * Will handle 380 lbs. of open valve spring pressure (max recommended spring pressure for 5/16 fastener) * Will clear stock valve cover (with removal of internal PCV baffle)
( 14 )
$41.51
Chevrolet Performance Small Block V8 or V6 Rocker Arm Kits
Chevrolet Performance small block V8 or V6 rocker arms are available individually or in sets, and include stamped steel or aluminum rockers with mounting hardware.
( 15 )
$46.99
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$49.97
Summit Racing™ Pro LS Upgraded Rocker Arms
Summit Racing™ Pro LS upgraded rocker arms feature high-quality rocker bodies that utilize the factory style pedestal mount. They are made of high-grade cast steel construction to ensure long-lasting durability and performance. This design replaces the factory bearing and powdered metal trunnion and utilizes a captive bearing design and a bearing steel trunnion. These rocker arms are a perfect upgrade for higher rate springs and performance camshafts. Summit Racing™ Pro LS upgraded rocker arms come preassembled with heavy-duty trunnion kits, which saves you time and the additional cost of an installation tool. Features include: • New body casting includes thicker webbing in critical areas for increased strength • Additional oiling provisions for the bearings • Heavy-duty clips or retainers • Durable captive bearing design and bearing steel trunnion
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$25.99
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$28.99
Pioneer Replacement Rocker Arms
Pioneer replacement rocker arms are constructed of stamped steel to the same tolerances of factory specs. Perfect for stock rebuilds, they're made with the performance enthusiast in mind.
Not Yet Reviewed
$21.99
Scorpion Narrow Body Self-Aligning Rocker Arms
Good things come in small packages. If you're a later style Chevy engine owner, you already know that, and Scorpion narrow body self-aligning rockers arms are a perfect choice. These 100 percent CNC-machined rockers are made for your center bolt-down valve covers and eliminate the guideplate. Their aluminum narrow body is self-aligning and can easily handle a .950 in. lift and 950 lbs. of open spring pressure. Scorpion narrow body self-aligning rocker arms have micro-polished surfaces and anodized coatings for maximum durability and a great long-lasting look. Pick up some narrow body stingers from Scorpion and watch the competition scatter! Additional features: * Needle bearing fulcrum and roller tip * Centerless-ground trunnion * Ground pin and roller * Burr-free trunnion through hole * Black oxide coated steel parts * Lightweight for maximum performance
( 18 )
$34.08
Harland Sharp Heavy-Duty Roller Rockers
Don't trust your engine investment to just any no-name rocker manufacturer. Harland Sharp heavy-duty roller rockers are specifically designed for the heavy spring pressure and high-lift geometry of highly modified engines. They're also engineered with wider bodies, resulting in increased rocker strength and longevity. So, when your engine requires extra durability, use Harland Sharp heavy-duty roller rockers.
( 60 )
$38.99
Scorpion Endurance Series Rocker Arms
Scorpion Endurance Series rocker arms offer you power that perseveres. With less weight and a lower profile these Endurance rocker arms are built with the stamina to get the job done in winning style. Scorpion specifically designed these rocker arms for endurance racing engines with better fitment and they can easily handle up to 750 lbs. of open spring pressure. Plus, they're approximately 28 grams lighter than their Race rockers! Endurance rocker arms are micro-polished to endure over a long period and are anodized for additional protection, as well as providing great aesthetics. Choose your ratio and gain the stamina to sting your competition with Scorpion Endurance Series rocker arms. Additional features include: * Aerospace-grade 7000 Series aluminum * Full body design * Precision ground need bearings * Centerless-ground fulcrum * Ground pin and roller * Burr-free trunnion through hole * Large machined seat * Solid steel pedestals * Black oxide coated steel parts
( 34 )
$28.99
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$42.11
Howards Cams Billet Aluminum Rocker Arms
The unique full body design of these Howards Cams billet aluminum rocker arms offers less flex and will withstand 800-plus lbs. of spring pressure at over .800 in. lift. These rockers are 100 percent CNC-machined and are designed for more retainer and spring clearance than most other brands. They feature needle-bearing fulcrums and roller tips, centerless ground trunnions, centerless ground pins and rollers, and thick-walled adjusting nuts.
( 44 )
$22.50
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$43.99
Proform Pedestal Mount Extruded Aluminum Roller Rocker Arms
These Proform pedestal mount extruded aluminum roller rocker arms rid your engine of internal friction. Their race-proven full needle-bearing fulcrum and roller tip not only unleash horsepower, they also lengthen valvetrain component life, and reduce wear and tear on valve stem tips. They're precision-machined to ensure consistency and ratio accuracy.
( 47 )
$25.99
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
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$31.55
$22.50
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$29.96
Summit Racing™ Gold Series Rocker Arms
Summit Racing™ Gold Series rocker arms are engineered for performance at the key stages of motor function--allowing air and fuel into the combustion chamber during the intake stoke, and expelling gases during the exhaust stroke. Lightweight and low-profile, these aluminum rockers are available in a variety of ratios for small or big block vehicles, with stud mounting and a standard full roller style design. These are gold anodized for both protection and beauty. When you're replacing rocker arms in your race car or street machine as far back at the mid-'50s, reach for the gold standard: Summit Racing™ Gold Series!
( 6 )
$30.99
