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Manley Performance
Manley Performance high performance and racing engine parts have been powering winners since 1966.

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Items 1-25 of 55
Assembly Lubricants
Assembly Lube is favored by professional mechanics for assembling many internal mechanical components including wrist pins, pistons, bushings, plain bearings, ball bearings, roller bearings,...More Details »
Camshaft Locking Plates
Don't let a broken camshaft bolt ruin your motor! Camshaft locking plates and bolts from PitStopUSA.com are manufactured from tough Grade 8 steel with a black oxide finish includes retaining plate.
Camshaft Thrust Buttons
Cam Thrust Buttons from PitStopUSA.com are designed to control cam end play. Excessive cam play can cause inaccurate ignition timing and premature timing chain wear. Roller Cam Thrust Buttons...More Details »
Camshaft Thrust Plates and Bearings
When using a roller cam you need to provide some means of holding the cam back to the rear of the engine. Cam thrust button rides between the front of the timing gear and the back of the front...More Details »
Connecting Rod Bolts
The weak link in a connecting rod has always been the bolt. It is critically important to monitor the stretch of each bolt and replace it when it has permanently elongated by .001?. In some...More Details »
Connecting Rod Bolts - NEW
Check out the Recently Listed Connecting Rod Bolts.
Connecting Rods
Whether you're looking for H-Beam connecting rods, or stock appearing I-Beam connecting rods, PitStopUSA.com has your connecting rod solution in stock. We offer a great selection of connecting rods...More Details »
Cylinder Head Bolts
Pit Stop USA is The Online Motorsports Superstore! We feature Cylinder Head Bolts at low everyday prices.
Cylinder Head Fastener Kits - NEW
Check out the Recently Listed Cylinder Head Fastener Kits.
Cylinder Head Tools and Cutters - NEW
Check out the Recently Listed Cylinder Head Tools and Cutters.
Cylinder Head Washers
Pit Stop USA is The Online Motorsports Superstore! We feature Cylinder Head Washers at low everyday prices.
Cylinder Head Washers - NEW
Check out the Recently Listed Cylinder Head Washers.
Guide Plates
Pit Stop USA is The Online Motorsports Superstore! We feature Pushrod Guide Plates at low everyday prices.
Lash Caps
Pit Stop USA is The Online Motorsports Superstore! We feature Lash Caps at low everyday prices.
Manley Budget Performance Valves
Manley Performance is universally acknowledged as the leading manufacturer of performance and racing valves in the world. The reason for Manleys overwhelming success is simple: QUALITY. We offer...More Details »
Manley Budget Replacement Valves
Manley Performance is universally acknowledged as the leading manufacturer of performance and racing valves in the world. The reason for Manleys overwhelming success is simple: QUALITY. We offer...More Details »
Manley Chromoly Pushrods - 11/32" x .080" Wall
Manley Chromoly Pushrods - 11/32" x .080" Wall features: Meticulously formed ends with exact radii
Manley Chromoly Pushrods - 3/8" x .080" Wall
Manley 4130 Chrome Moly Swedged End Pushrods feature meticulously formed ends with exact radii. Excellent concentricity, closely controlled length. Heat treated and black oxide finished.
Manley Chromoly Pushrods - 3/8" x .120" Wall
Manley Chromoly Pushrods - 3/8" x .120" Wall features: Meticulously formed ends with exact radii
Manley Chromoly Pushrods - 5/16" x .080" Wall
Pit Stop USA is The Online Motorsports Superstore! We feature Manley Chrome Moly Pushrods - 5/16" x .080" Wall at low everyday prices.
Manley Chromoly Pushrods - 7/16" x .165" Wall
Manley Chromoly Pushrods - 7/16" x .165" Wall features: Meticulously formed ends with exact radii
Manley Extreme Duty Valves
Manley Performance is universally acknowledged as the leading manufacturer of performance and racing valves in the world. The reason for Manleys overwhelming success is simple: QUALITY. We offer...More Details »
Manley NexTek Valve Springs
Manley NexTek® Drag Race Series Valve Springs offer unequaled performance. The Manley NexTek® eclipses the 1000lbs barrier. The NexTek® springs offer better valve train stability and component...More Details »
Manley Performance Piston Rings
Manley stocks conventional style piston ring sets in both “Classic Race” and “AP Premium Steel top ring” versions.
Manley Pro Series Crankshafts
Manley 4340 steel non-twist forging, heat-treated, precision ground, stress relieved, shot peened, nitride hardened, large fillet radii for use with narrowed bearings, gun-drilled rod journals,...More Details »
Items 1-25 of 55

Manley Performance Products

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Items 1-25 of 898
Description: Wrist Pin Bushing, 0.875 in ID, Set of 8
Item #: MAN42345-8
Condition: New
Limited Supply: Only 2 Left!
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Ships from Michigan.
Price: $144.80
Sale: $68.87
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Description: Wrist Pin Bushing, 0.990 in OD, Set of 8
Item #: MAN42327-8
Condition: New
Limited Supply: Only 3 Left!
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Price: $144.80
Sale: $72.26
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Description: Camshaft Thrust Bearing, 0.150 in Thick, Roller, Steel, Chevy V8, Each
Item #: MAN42420
Condition: New
Limited Supply: Only 4 Left!
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Ships from Michigan.
Price: $41.30
Sale: $22.76
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Description: Valve Spring, Professional Series, Single Spring / Damper, 370 lb/in Spring Rate, 1.095 in Coil Bind, 1.260 in OD, Set of 16
Item #: MAN22410-16
Condition: New
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Ships from Michigan.
Price: $160.00
Sale: $78.20
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Description: Valve Spring Locator, Outside, 0.062 in Thick, 1.390 in OD, 0.570 in ID, 1.250 in Spring OD, Steel, Black Oxide, Set of 16
Item #: MAN42142-16
Condition: New
Limited Supply: Only 6 Left!
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Ships from Michigan.
Price: $155.20
Sale: $73.25
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Description: Valve Spring, Street Master, Single Spring / Damper, 357 lb/in Spring Rate, 1.180 in Coil Bind 1.250 in OD, Set of 16
Item #: MAN22409-16
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $184.00
Sale: $98.99
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Description: Valve Spring Locator, Inside, 0.035 in Thick, 1.270 in OD, 0.505 in ID, 0.685 in Spring ID, Steel, Black Oxide, Set of 16
Item #: MAN42334-16
Condition: New
Limited Supply: Only 2 Left!
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Ships from Michigan.
Price: $155.20
Sale: $84.14
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Description: Valve Spring Locator, Inside, 0.035 in Thick, 1.300 in OD, 0.505 in ID, 0.676 in Spring ID, Steel, Black Oxide, Set of 16
Item #: MAN42117-16
Condition: New
Limited Supply: Only 4 Left!
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Ships from Michigan.
Price: $155.20
Sale: $73.25
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Description: Valve Spring Locator, Inside, 0.035 in Thick, 1.320 in OD, 0.567 in ID, 0.726 in Spring ID, Steel, Black Oxide, Set of 16
Item #: MAN42135-16
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $155.20
Sale: $84.14
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Description: Valve Spring Locator, Outside, 0.062 in Thick, 1.550 in OD, 0.687 in ID, 1.437 in Spring OD, Steel, Black Oxide, Set of 16
Item #: MAN42126-16
Condition: New
Limited Supply: Only 3 Left!
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Ships from Michigan.
Price: $155.20
Sale: $84.14
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Description: Valve Spring, Street Master, Dual Spring / Damper, 392 lb/in Spring Rate, 1.100 in Coil Bind, 1.437 in OD, Set of 16
Item #: MAN22408-16
Condition: New
Limited Supply: Only 1 Left!
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Price: $366.40
Sale: $174.44
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Description: Valve Spring Seat Cutter, 1.445 in OD / 0.570 in ID, 11/32 in Pilot, Steel / Carbide, Each
Item #: MAN41850
Condition: New
Limited Supply: Only 1 Left!
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Price: $257.00
Sale: $132.87
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Description: Valve Spring, NexTek, Dual Spring, 797 lb/in Spring Rate, 1.130 in Coil Bind, 1.500 in OD, Set of 16
Item #: MAN221455-16
Condition: New
Limited Supply: Only 2 Left!
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Price: $1,563.20
Sale: $794.96
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Description: Valve Spring, NexTek, Dual Spring, 800 lb/in Spring Rate, 1.130 in Coil Bind, 1.500 in OD, Set of 16
Item #: MAN221456-16
Condition: New
Limited Supply: Only 4 Left!
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FREE SHIPPING! Ships from Michigan.
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Price: $1,352.00
Sale: $642.50
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Description: Valve Spring, NexTek, Dual Spring, 800 lb/in Spring Rate, 1.130 in Coil Bind, 1.500 in OD, Set of 16
Item #: MAN221457-16
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Ships from Michigan.
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Price: $1,352.00
Sale: $694.87
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Description: Valve Spring, NexTek, Dual Spring, 948 lb/in Spring Rate, 1.255 in Coil Bind, 1.522 in OD, Set of 16
Item #: MAN221460-16
Condition: New
Limited Supply: Only 3 Left!
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Price: $1,729.60
Sale: $889.87
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Description: Valve Spring, NexTek, Dual Spring / Damper, 435 lb/in Spring Rate, 1.170 in Coil Bind, 1.530 in OD, Set of 16
Item #: MAN221432-16
Condition: New
Limited Supply: Only 1 Left!
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Price: $809.60
Sale: $388.69
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Save: $420.91

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Description: Valve Spring Locator, Inside, 0.062 in Thick, 1.535 in OD, 0.570 in ID, 0.720 in Spring ID, Steel, Black Oxide, Set of 16
Item #: MAN42347-16
Condition: New
Limited Supply: Only 3 Left!
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Ships from Michigan.
Price: $155.20
Sale: $74.87
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Description: Valve Spring Locator, Inside, 0.062 in Thick, 1.535 in OD, 0.635 in ID, 0.730 in Spring ID, Steel, Black Oxide, Set of 16
Item #: MAN42335-16
Condition: New
Limited Supply: Only 4 Left!
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Ships from Michigan.
Price: $155.20
Sale: $84.14
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Description: Valve Spring, Professional Series, Dual Spring / Damper, 614 lb/in Spring Rate, 1.090 in Coil Bind, 1.550 in OD, Set of 16
Item #: MAN22440-16
Condition: New
Limited Supply: Only 4 Left!
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Price: $760.00
Sale: $356.87
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Description: Valve Spring Locator, Inside, 0.062 in Thick, 1.535 in OD, 0.635 in ID, 0.730 in Spring ID, Steel, Black Oxide, Set of 16
Item #: MAN42119-16
Condition: New
Limited Supply: Only 2 Left!
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Ships from Michigan.
Price: $155.20
Sale: $72.81
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Description: Valve Spring Locator, Inside, 0.062 in Thick, 1.535 in OD, 0.570 in ID, 0.750 in Spring ID, Steel, Black Oxide, Set of 16
Item #: MAN42326-16
Condition: New
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Ships from Michigan.
Price: $155.20
Sale: $84.87
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Description: Valve Spring Locator, Outside, 0.062 in Thick, 1.680 in OD, 0.577 in ID, 1.550 in Spring OD, Steel, Black Oxide, Set of 16
Item #: MAN42377-16
Condition: New
Limited Supply: Only 3 Left!
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Ships from Michigan.
Price: $155.20
Sale: $89.09
Save: 43%
Save: $66.11
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Description: Valve Spring Locator, Outside, 0.062 in Thick, 1.680 in OD, 0.635 in ID, 1.550 in Spring OD, Steel, Black Oxide, Set of 16
Item #: MAN42122-16
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $155.20
Sale: $84.14
Save: 46%
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Description: Valve Spring Locator, Inside, 0.062 in Thick, 1.535 in OD, 0.570 in ID, 0.730 in Spring ID, Steel, Black Oxide, Set of 16
Item #: MAN42317-16
Condition: New
Limited Supply: Only 5 Left!
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Ships from Michigan.
Price: $155.20
Sale: $86.12
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Save: $69.08
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Items 1-25 of 898

More About Manley Performance

Pit Stop USA is The Online Motorsports Superstore! Manley Performance high performance and racing engine parts have been powering winners since 1966! Manley Budget Replacement Valves are better-than-stock valves. Manley Budget Performance Valves are for the value conscious engine builder. Manley Street Master Valves are excellent for mild performance engines. Manley Street Flo Valves are made with the same materials as Street Master, but with Pro-Flo under head design. Manley Race Flo Valves valves have been necked down in the port area to enhance flow. Manley Race Master Valves have straight, fully chromed stems and hardened tips. Manley Severe Duty aPro-Floa Valves have many features of the Race-Flo line, but are made of severe duty material. Manley Severe Duty Valves have double the tensile strength of imported valves. Manley NexTek Series Oval Track Valve Springs put an end to spring degradation. Manley 10A Titanium Retainers have the durability needed for racing engines. Manley Valve Locks are heat treated, black oxide coated steel. Manley 5/16" Chrome Moly Pushrods provide maximum strength. Manley 5/16" Pushrods are manufactured from 4130 steel. Manley Flat Steel Guide Plates are stamped for accuracy, and heat treated to reduce wear. Manley Raised Steel Guide Plates ensure exact stud location and pushrod alignment. Manley SportmasterA Connecting Rods are CNC-machined from quality 4340 forgings. Manley Wear Caps are 4140 alloy steel and heat treated. Manley Pushrod Length Checkers are a must for all racers and engine builders. We also stock Manley Race Roller Timing Kits, Manley Roller Thrust Buttons, Manley Chevy Cam Lock Plates, Manley Superior Head Bolts, Manley Miracle Seal Epoxy and Manley Magic Seal Epoxy. We feature Manley Performance products including Manley Valves, Manley Rods, Manley Valve Springs, Manley Retainers, Manley Valve Locks, Manley Guide Plates, Manley Timing Chains and Manley Pushrods at low everyday prices!