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When it comes to building horsepower and torque, you need to start at the bottom and work your way up. Manley rotating assemblies are designed for performance enthusiasts wanting to get the most out of their engines. Their assemblies feature 4340 forged steel crankshaft and H-beam connecting rods, either 7/16 in. ARP 8740 cap screws with a 750 hp rating for LS engines/900 hp for big blocks, or optional ARP 2000 cap screws for up to 1,500 hp. They use 2618 Platinum Series forged aluminum pistons, chromoly premium wrist pins, Total Seal piston rings, and Clevite "H" Series narrowed rods and "P" or "H" Series main engine bearings. Building high-horsepower performance engines takes a lot of thought and all the right parts. Start off right with Manley rotating assemblies.
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$3,230.08
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$3,323.66
$3,068.58
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$3,157.48
On Sale
Manley Race series performance valves are a great choice for your bracket, oval track, or high performance street engine. All valves are made from stainless steel (intakes are NK-842; exhausts are XH-426) with chrome stems and hardened valve tips. In addition to being made from high-quality materials, Race series valves are swirl polished and fully machined.
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$22.45
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$537.42
$21.33
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$510.55
On Sale
Manley Pro Series crankshafts can make your short block bulletproof. They feature forged 4340 construction and undergo a multi-step heat-treatment process and are then nitrided for added strength. The crankshafts are stress-relieved, shot-peened, and magnafluxed. Manley Pro Series crankshafts have micro-polished large .125 in. radius journals, gun-drilled mains, and lightened rod journals for weight reduction. The counterweights are fully profiled and they are designed for internal balancing.
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$873.46
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$1,713.02
$829.79
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$1,627.37
On Sale
Manley Severe Duty series performance valves are a great choice for your high performance or race engine. All valves are made from stainless steel (intakes are NK-844; exhausts are XH-428) with chrome stems and hardened valve tips. Severe Duty series valves are made of superior materials, are fully machined and swirl polished, and are available with either undercut "Pro Flo" stems or straight stems.
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$35.84
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$489.59
$34.05
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$465.11
On Sale
Manley Severe Duty Pro Flo Series intake and exhaust valves are a great choice for your high performance or race engine. All valves are made from stainless steel (intakes are NK-844; exhausts are XH-428) with chrome stems and hardened valve tips. Severe Duty series valves are fully machined and swirl polished, and offer improved flow with undercut "Pro Flo" stems. Many size options are available, for applications from 1955 and up.
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$35.84
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$661.13
$34.05
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$628.07
On Sale
Better designed valve springs using state-of-the-art machinery for purpose-built racing engines. Manley Street Master valve springs are manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature a proprietary multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. Manley Street Master valve springs feature a small diameter and are lightweight, allowing engines to rev higher faster. They have an extended tip thickness to eliminate overload breakage and their tightly controlled open-end flatness reduces valve stem side loading.
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$6.65
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$211.87
$6.32
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$201.28
On Sale
Manley Extreme Duty Series performance steel valves are a great choice for supercharged, alcohol-burning, or high-revving engines. These engines generate a lot of heat and require special valves that can handle that kind of punishment. All valves are made from the best stainless steel available, with chrome stems and hardened valve tips. Extreme Duty Series valves are swirl-polished and fully machined and available with either undercut heads or straight stems.
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$35.84
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$489.59
$34.05
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$465.11
On Sale
Manley steel H-beam connecting rods are made from forged 4340 steel alloy. They're packed full of performance features, such as a compact uniform-grain structure for ultimate strength, full machining, stress relieving, and magnafluxing. The wrist pin and big end bores are honed to a +/-.0002 in. tolerance, and the wrist pins get a bronze alloy bushing. These units include cap screw ARP 8740 alloy rod bolts, and each rod set is weight-matched to within 2 grams. Available individually or in a set, order the model recommended for your vehicle year/make and engine application.
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$93.04
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$843.91
$88.39
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$801.71
On Sale
Manley Street Flo valves are excellent-quality valves at an affordable price. All are made from stainless steel (intakes are NK-841; exhausts are XH-424) with chrome stems and hardened valve tips. Street Flo series valves are fully machined and swirl polished, and both the materials used and the heat-treating process are superior to those of the Budget replacement series valves. They're available in a variety of head diameters, with either straight stems or undercut "Pro Flo" stems for increased flow. Order the set that's compatible with your vehicle and engine application.
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$16.55
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$141.32
$15.72
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$134.25
On Sale
These Manley NexTek valve springs are better-designed valve springs using state-of-the-art machinery for purpose-built racing engines. They're manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature a proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. The Manley NexTek valve springs are smaller diameter and lightweight, allowing engines to rev higher faster. They have an extended tip thickness designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading.
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$18.20
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$645.49
$17.29
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$613.22
On Sale
Big-time clamping force for your connecting rods! Manley replacement connecting rod bolts feature a .0005 to .0070 in. interference fit to guarantee rod cap alignment and actually strengthen the connecting rod. They are available in ARP2000 alloy with an 8740 chromoly steel. Nuts and lubricant are included.
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$9.65
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$193.24
$9.17
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$183.58
On Sale
Manley offers crankshaft keys for LS/Hemi applications. These semi-circular shaped removable parts—also called woodruff keys—fit into matching keyways cut into the crankshaft, leaving protruding tabs. These tabs mate with matching slots on the harmonic balancer flush upon the shaft. They are used to improve the concentricity of the shaft and the mating part, which is critical for high-speed operation. Order the key recommended for your year, make, and engine family.
Not Yet Reviewed
$4.37
$4.15
On Sale
Manley Budget series performance valves are high-quality valves at very affordable prices. All are made from stainless steel (intakes are NK-480; exhausts are XH-422) with chrome stems and hardened valve tips. They're also swirl polished and fully machined. Both the materials used and the heat-treating process are superior to original equipment replacement pieces. These valves are available in stock length and 0.100 in. longer.
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$11.33
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$90.59
$10.76
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$86.06
On Sale
Manley Race Master valves are designed and engineered to withstand the abuse of the track. Race Master valves are targeted by the bracket, drag, and oval track racers, or even those with modified street engines that are operating at engine speeds below 8,000 rpm. These valves are constructed from XH-426 material for the exhaust and NK-842 for the intake valves, making them the strongest valves in their class. Whether everything is on the line at the track, or you just enjoy your high performance car or motorcycle on the street, trust Race Master valves by Manley to keep you on the move. Order the model designed for your vehicle year/make and engine application.
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$22.45
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$192.91
$21.33
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$183.26
On Sale
Manley timing chain sets are designed to provide consistent, accurate timing for your high performance engine. They feature a fully machined billet-steel camshaft and crankshaft sprockets, a full double-roller chain using .250 in. diameter rollers, and adjustable keyway crankshaft sprockets that are machined for and include either a brass wear shim or Torrington thrust bearing. Keep timing stable and accurate throughout the entire rpm range with these Manley timing chain sets.
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$39.88
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$244.93
$37.89
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$232.68
On Sale
Manley Platinum Series pistons are designed to provide trouble-free installation, excellent reliability, and maximum horsepower for your application. Available in 2618 and 4032 forgings, they provide the optimum balance between strength and weight, with no grain-interrupting internal milling. The Platinum Series pistons' 2618 alloy offers maximum high-temperature strength and fatigue resistance, while the 4032 alloy is ideal for moderate-horsepower street applications. Order the style and size pistons designed for your vehicle and engine.
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$89.21
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$1,080.83
$84.75
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$1,026.79
On Sale
Protect your valvetrain. Manley guideplates are made from heat-treated steel and have a black oxide finish. They are carefully stamped for absolute accuracy and are a must-have for today's performance engines.
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$3.91
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$58.04
$3.71
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$55.14
On Sale
Manley Street Master valves are excellent-quality valves at an affordable price. All are made from stainless steel (intakes are NK-841; exhausts are XH-424) with chrome stems and hardened valve tips. Street Master series valves are fully machined and swirl polished, and both the materials used and the heat-treating process are superior to those of the Budget replacement series valves. They're available in a variety of head diameters, with either straight or undercut stems for increased flow. Order the set that's compatible with your vehicle and engine application.
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$16.55
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$141.32
$15.72
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$134.25
On Sale
Manley Pro-Flo oil pumps deliver optimum performance and reliability. Manley starts with Melling "select performance" oil pumps and then disassembles, hand ports, and blueprints each pump to supply the proper oil volume and pressure with minimum parasitic horsepower loss, cavitation, and oil aeration. High performance engines require Manley Pro-Flo oil pumps to deliver!
Not Yet Reviewed
$292.53
$277.90
On Sale
Manley Tour Lite I-beam connecting rods combine design and finely tuned manufacturing processes to render an outstanding product. They're forged from 4340 aircraft-quality steel and are fully machined to produce the lightest, yet strongest rods possible. The Tour Lites are then shot-peened to MIL-SPEC standards and are 100 percent individually magnafluxed. ARP cap screws are included. If you're looking for robust, lightweight rods, these Manley Tour Lite I-beam connecting rods will get your engine in motion. The replacement rods are available individually and in sets.
Not Yet Reviewed
$228.43
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$1,827.45
$217.01
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$1,736.08
On Sale
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.
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$46.01
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$65.98
$43.71
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$62.68
On Sale
Manley offers Clevite main bearings to deliver the high performance you need for your high-revving engines. To compensate for the high-load factors and distortion in these engines, these bearings have higher eccentricity and a high crush factor. Constructed of tri-metal cast copper lead, they have a steel back for support, a cast copper lead lining to withstand the loads of engine operation, an electroplated babbit overlay on the running surface to provide searing surface qualities, and oil grooves for better oiling. For your Manley rotating assemblies, order Clevite bearings for conformability, embeddability, and fatigue resistance.
Not Yet Reviewed
$81.52
$77.44
On Sale
Manley offers these superior cylinder head bolt kits for a variety of applications. They are longer than stock for use with washers, heat treated for added strength, and their 1/2 in. hex head improves wrenchability.
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$38.27
$36.36
On Sale
Don't be fooled; not all H-beams are created equal. Manley Steel H-Tuff connecting rods are built with heavier beams for higher boost applications. They are finished to the same exacting tolerances and high quality you expect from Manley. You will find the Manley H-Tuff rods superior to others on the market.
Not Yet Reviewed
$120.44
$114.42
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