Availability
Performance-minded engine builders know there's an inherent issue with valvetrain deflection when using stock rocker arm mounting in Chevrolet Gen III-IV-cylinder heads. BTR LS shaft rocker kits are designed to significantly reduce deflection, thereby improving both performance and durability. Each kit features technology typically only found in high-end shaft rocker systems. These shaft rocker systems consist of a billet steel stand equipped with four shafts per cylinder head, fasteners and bearings. The shafts are made from genuine 52100 bearing steel. Each pair of rockers has five fasteners mounting them to the rocker stand, compared to the traditional single bolt per rocker configuration. These shaft rocker kits are ready for assembly using your existing stock rockers. (Rocker arm shafts are also available individually.)
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$309.99
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$469.99
If you're looking for pistons with an unbeatable combination of performance and value, then Speed-Pro hypereutectic pistons are for you. These pistons are manufactured from aluminum alloy that contains 16 percent silicon for greater strength and wear resistance. They're also molded in the latest permanent-mold technology to ensure the precise fit and tight bore clearances that today's top engine builders demand. Hypereutectic pistons are ideal for use in high performance street, bracket, and oval track racing—and will work perfectly with normal ring end gaps. Choose the model designed for your vehicle and engine application.
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$250.99
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$498.99
The nation's top engine builders rely on Moroso racing oil pumps because of their superior design and ability to provide consistent oil flow. They're designed to handle the extra demand required from higher engine speeds. Special anti-cavitation slots, feeder grooves, and an enlarged bypass area are machined into the housing to bleed oil back to the inlet side of the pump. They feature proprietary cast housings fitted with precision-machined gears and a precision-ground shaft for outstanding oil delivery. Each pump is 100 percent pressure-tested to stringent quality control specifications to ensure that the pump you receive will perform flawlessly.
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$318.99
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$347.99
Cloyes Hex-A-Just Z-Racing timing sets allow the engine builder everything he needs to quickly and easily adjust cam timing to maximize engine output. They feature a complete set of chains and sprockets for flexible timing adjustments to set the cam timing exactly as desired for improved performance and durability. The Z Series chain design increases overall strength and is the no-compromise offering for serious racing engines.
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$262.99
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$331.99
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
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$261.12
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$417.65
With a name that's synonymous with Harland Sharp and their cutting-edge roller rocker arm technology, their Diamond roller rockers are the perfect solution for the engine builder or serious racer requiring every possible weight and output advantage. Harland Sharp recognizes that every gram of weight eliminated from the reciprocating mass can help to increase net horsepower. With Diamond roller rockers, you are able to increase engine horsepower/rpm quicker and compete with a reliable, lightweight valvetrain. For the finest rocker arms for racing engines, use Harland Sharp.
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$392.99
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$462.99
BTR conical valve springs are designed to maintain contact between your valvetrain components, so the valve motion will follow the cam profile. Each replacement spring is manufactured to exact specifications, as listed, for precise fitment. Conical valve springs from Brian Tooley Racing are a great choice for your application—trusted by engine builders worldwide!
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$389.99
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$449.99
Clevite engine bearings have helped power every single NASCAR champion since 1948 to Victory Lane, setting the pace for quality and reliability in the most demanding of settings. Their V-Series main bearings typically have low to medium eccentricity and a hardened steel back with a high crush for better seating and retention. They also do not have flash plating on the steel back to provide better dimensional accuracy and bore contact, using a lead-indium overlay which offers better conformability than lead-tin copper overlay with slightly reduced wear resistance. For daily drivers, and racers on tracks around the country, Clevite continues to be the brand of choice for engine builders with the coated V-Series main bearings best suited to match their application.
Not Yet Reviewed
$274.99
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$298.99
KB Performance V-Twin piston and ring kits bring all of the knowledge and experience of a legendary engine builder to the world of high performance motorcycles. These pistons use the latest manufacturing techniques and standards to ensure quality and maximum available performance. The kits are offered in hypereutectic 390 alloy and forged 4032 low-expansion alloy. KB Performance V-Twin piston and ring kits are available for Harley-Davidson® and Indian motorcycles in a variety of engine sizes and compression ratios.
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$251.99
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$287.99
Total Seal AP Steel street and race piston ring sets are a preferred choice for race engine builders. They work well in all applications, including extreme nitrous, boost, turbo, and forced induction applications. Each set starts with Total Seal's Advanced Profiling (AP) 440B stainless steel top ring with C33 chromium nitride face coating that doesn't allow dirt to penetrate. The 2nd ring is Napier-style ductile iron and the sets are finished with a low, standard, or high-tension oil ring. For increased performance and longer life, choose Total Seal's AP Steel conventional piston ring sets with the specs needed for your application.
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$375.68
Mahle Original piston ring sets are designed to be installer-friendly. They are pre-lapped to seat immediately, virtually eliminating break-in time. Ring materials and coatings, as well as ring tension, are all optimized for reduced friction and extended life in each application. The compression rings feature a barrel-faced contact area for more efficient compression and CNC-controlled gap chamfer to optimize compression and reduce blow-by. Intermediate rings have a reverse twist design for better groove side sealing, and taper race machining to enhance contact. The CP-20 oil ring assemblies feature a 20 degree ear angle, an exclusive feature that provides the best possible side seal against the cylinder wall, and a special chemical polish on the oil ring expander offers enhanced oil drain back. Mahle Original piston ring sets provide unmatched quality and ease of installation, making them the rings of choice for today's engine builders.
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$252.99
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$354.99
Hastings Claimer Series Performance piston ring sets are for builders wanting value without sacrificing precision and performance. They start with top rings made from proprietary shell-mold cast iron with plasma moly impact-resistant alloy, providing a hard, yet lubricating, low-friction structure. The plasma moly coating improves wear resistance, reduces scuffing, traps lubricating oil, and is compatible with a wide range of cylinder bore materials. The 2nd rings are manganese phosphate coated. Claimer moly top rings are torsional positive twist and the 2nd rings are torsional reverse-twist taper face. Completing the set of Moly Claimer Performance rings are Hastings Flex-Vent oil rings that minimize friction, improve flexibility, and provide high-rpm oil control.
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$323.99
Mahle Original single piston and ring kits have the same great OE features to provide the perfect fit and function in your vehicle. Things like compensated ring grooves to ensure proper ring loading and oil control and expansion-controlled designs for small fitting clearances to reduce engine noise, wear, emissions, and improve oil control. They offer pistons ready for installation with mounted piston rings, with pin and clips included for the convenience of the engine builder. Whether you're repairing or restoring, you can count on the performance of Mahle Original single piston and ring kits.
Not Yet Reviewed
$309.99
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$491.99
Clearance
These high-strength, nodular-iron street performance balancers from Pioneer offer bonded balancer technology to meet the budget of every performance street engine builder from mild to wild. They also make great heavy-duty standard replacement balancers and are perfect for limited-spec race classes, such as late model stock, that require an OE-style balancer. The bonded dampening rubber in these balancers eliminates spinning and component separation, giving reliable performance in engines using up to 6,500 rpm. All Pioneer street balancers feature easy-to-read, permanently etched timing marks on the outer ring.
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$278.99
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$464.99
Total Seal AP Advanced Profiling top piston rings are the flattest, tightest tolerance piston rings available anywhere. Intended for hard core racing, they are currently in use at the highest levels of stock car, drag, and open wheel competition. Get the same horsepower producing piston ring technology that Total Seal delivers to the top engine builders in NASCAR Cup, IndyCar, NHRA, IHRA, and Formula 1. AP Advanced Profiling top rings are produced to extremely close axial and radial tolerances with minimal surface roughness. Face coatings include plasma-moly or state-of-the-art proprietary PVD coatings. Total Seal Diamond Finish second rings are produced to the same tight tolerances and are available with a standard taper face or a sharp edge technology Napier design. Combine the two with Total Seal special application oil rings, they are the ultimate ring sets. Additional features and benefits of Total Seal AP Advanced Profiling top piston rings: * Manufactured from 440B stainless steel * Stronger, longer life, and the most precise tolerances * Saves money (fewer teardowns) * Thinner, flatter, and lighter * Conforms better to the cylinder wall * 1.0mm and larger available in any bore size from 2.992 in. to 5.125 in. * Special axial-sizing available * Works well in all applications, notably dirt environments * Easier on cylinders, reducing bore wear * Uses C33 face coating; doesn't allow dirt to penetrate coating * Available in gapless or conventional styles
Not Yet Reviewed
$375.68
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$499.99
No other racing valve on the market has superior materials, is lighter or will flow more than Milodon Megaflow racing valves, as proven by multiple independent engine builders and independent laboratories. These competition valves are forged from one piece of 21-4N stainless steel. They have swirl-polished heads, undercut stems for better gas flow, and tulipped underhead areas for weight savings. With their hardened stellite tips and 1,600 degree F temperature capabilities, they can withstand both high-heat and high-valvetrain stress loads.
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$252.95
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$284.95
Manley TensileMax steel valve spring retainers are designed for serious engine builders. They're as light as standard titanium retainers and within 2 to 4 grams of lightweight titanium versions. The tough alloy retainers are specially heat-treated to provide a hardness of Rc 52-54 and prevent retainer wear. Manley's exclusive process yields a part that delivers optimum balance between ultimate strength, fatigue strength, hardness, and ductility. A unique impingement process developed specifically for the TensileMax alloy and hardness range improves fatigue strength and promotes better oiling between the engine valve spring and retainer. They are available in a variety of sizes, individually or in larger sets.
Not Yet Reviewed
$471.12
On Sale
BoostLine connecting rods are designed specifically for demanding turbocharged, supercharged, and big nitrous applications. The patented, 3-pocket body forged from premium 4340 steel incorporates the best features of both the H-beam (mass/weight) and I-beam (strength) designs. This provides 60 percent more bending strength compared to common H-beam rods. Each piece is heat-treated, shot-peened, and fitted with ARP-2000 cap screws (strong, malleable, and 220,000 psi rating) before final finish machining. Keep things straight with a set of BoostLine connecting rods (also available individually). Order the connecting rods in the model recommended for your specific engine size. Features, items, and specs: * High-quality Ampco bushing material used in the small end * Pin clearance at between 9-ten-thousandths and 11-thousandths of an inch (allows engine builder to custom set wrist pin spec, should additional clearance be necessary) * All BoostLine rods are individually inspected via a coordinate measuring machine (CMM) that is used to custom-match sets of rods to incredibly tight tolerances * Each rod includes an inspection report from the Wiseco Piston quality team * Rods are completely separated by thick foam for protection from shipping damage * Each rod is vacuum-wrapped in plastic for corrosion protection * Upgraded ARP 625+ bolts (260,000 to 280,000 psi) available
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$299.99
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$374.99
$269.99
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$337.49
Smart engine builders understand the benefits of a 4&7 firing order swap camshaft, which exchanges the 4 and 7 camshaft lobe timing in small and big block Chevy engines. While some builders have realized significant horsepower gains, all of them experience the exceptionally smooth torque curve possible with this new firing order technology. Dyno, Spintron, and track-tested, these camshafts do not require any engine block, ignition, or valvetrain modifications and can be custom-ground to the engine builder's exact specifications. Regardless of the cam specs that you require, these camshafts are engineered to achieve the maximum power possible using advanced lobe designs.
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$333.95
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$358.95
ARP Pro Series main bolts are application-specific and rated at 190,000 psi. Designed for use in competition engines, as well as to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.
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$372.99
ARP High Performance Series main bolts are rated at 180,000 psi and a popular premium replacement for OEM fasteners. Designed to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.
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$414.99
PAC Racing Hot Rod Series valve springs offer the engine and hot rod builder a mild upgrade or replacement for their hot rod. They are available in a variety of spring rates and diameters to accommodate your specific engine and camshaft profile.
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$360.35
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$396.60
Total Seal TS1 gapless 2nd street and race piston ring sets are the preferred choice for race engine builders. These ring sets start with a ductile iron top ring, and feature gapless 2nd rings, and 3-piece standard-tension oil rings. The TS1 gapless 2nd street and race piston ring sets are designed for use in all applications, including mild nitrous, boost, turbo, and forced induction applications. From extreme horsepower race engines to powerful stationary engines for industrial use and everything in between, Total Seal can help you to improve the efficiency and durability of your performance engine.
Not Yet Reviewed
$283.77
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$498.96
These COMP Cams belt drive replacement components are designed for use in the ultimate in cam timing systems. These components provide competition engine builders with the most accurate valvetrain replacement components available today. COMP Cams has all of the parts you'll need, from cam gear bolts to shims, washers, gears, and more.
( 10 )
$333.95
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