653 Results Found For "Performance"

Valve Spring, Triple, 1.681 OD

Part Number: HRS-98893

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Valve Spring, Pacaloy Mechanical Roller, Dual, 1.260 in. O.D., 0.624 in. I.D., 610 lbs/in., 0.550 in. Maximum Lift, 1.115 in. Coil Bind, Set of 16

Part Number: HRS-98223

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Valve Spring, Pacaloy Mechanical Roller, Dual, 1.260 in. O.D., 0.624 in. I.D., 610 lbs/in., 0.550 in. Maximum Lift, 1.115 in. Coil Bind, Each

Part Number: HRS-98223-1

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Valve Springs, Valve Spring, Dual, 1.300

Part Number: HRS-98335

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Valve Spring, Dual

Part Number: HRS-98374-1

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Valve Spring, Dual, 1.437 in. Outside Diameter, 380 lbs./in. Rate, 1.250 in. Coil Bind Height, Each

Part Number: HRS-98431-1

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Valve Spring Retainers, Chromoly Steel, 7 Degree, 1.040 in. Outside Diameter, Each

Part Number: HRS-97161-1

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Valve Spring Retainers, Chromoly Steel, 7 Degree, 1.290 in. Outside Diameter, Each

Part Number: HRS-97162-1

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DUAL VALVE SPRING

Part Number: HRS-98037

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Valve Spring, Inverted Conical, Single Beehive, 1.207 in. O.D., 1.072 in. I.D., 340 lbs/in., 0.625 in. Maximum Lift, 1.100 in. Coil Bind, Each

Part Number: HRS-98112-1

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Valve Spring, Dual, 1.500 in. Outside Diameter, 475 lbs./in. Rate, 1.040 in. Coil Bind Height, Each

Part Number: HRS-98541-1

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Retainer 7 Deg. 1.200" x 11/32"

Part Number: HRS-97113

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Valve Spring Retainers, Chromoly Steel, 10 Degree, 1.250 in. Outside Diameter, Each

Part Number: HRS-97132-1

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Camshaft, Mechanical Roller Tappet, Advertised Duration 313/319, Lift .770/.737, Chevy, Big Block, Each

Part Number: HRS-121683-10

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Lifters, Lifter, Chev SB, Mech Roller, Vert Bar, Pair

Part Number: HRS-91134-2

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Camshaft, Retrofit, Hydraulic Roller Tappet, Advertised Duration 262/266, Lift .510/.527, Chevy, Big Block

Part Number: HRS-120226-12

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 275/275, Lift .445/.445, Chevy, Small Block, Each

Part Number: HRS-111221-10

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Valve Springs, Ovate Beehive, 1.29 in. Outside Diameter, 313 lbs./in. Spring Rate, 1.140 in. Coil Bind Height, Set of 16

Part Number: HRS-98110

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 279/289, Lift .465/.488, Chevy, Small Block, Each

Part Number: HRS-110041-10

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Pushrods, 210 Swedged End Pushrods, 5/16 in. Diameter, 7.850 in. Length, Ball/Ball Ends, Set of 16

Part Number: HRS-95311-16

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Camshaft, Mechanical/Solid Roller Tappet, Retro Fit, Advertised Duration 299/311, Lift 0.714/0.725 in., 112 LSA, 108 Intake CL, Chevy, Big Block, Each

Part Number: HRS-120453-12

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Valve Spring, Dual, 1.500 OD

Part Number: HRS-98886

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Camshaft, Hydraulic Roller Tappet, Rattler, Advertised Duration 280/288, Lift .572/.572, Ford, 352-428 FE, Each

Part Number: HRS-258025-09

5.0 out of 5 stars ( 1 )

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Camshaft, Hydraulic Flat Tappet, Rattler, Advertised Duration 281/289, Lift .480/.488, Chrysler, Big Block, Each

Part Number: HRS-728001-09

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Camshaft, Hydraulic Roller Tappet, Rattler, Advertised Duration 280/288, Lift .525/.530, Chrysler, 273, 318, 340, 360

Part Number: HRS-718005-09

4.0 out of 5 stars ( 2 )

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