648 Results Found For "Performance"

Valve Springs, Single, Conical, 1.280 in. Diameter, 412 lbs./in., 1.150 in. Coil Bind Height, Single

Part Number: HRS-98113-1

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Valve Spring, Single, 1.280 in. Outside Diameter, 236 lbs./in. Rate, 1.150 in. Coil Bind Height, Each

Part Number: HRS-98115-1

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Valve Spring, Inverted Conical, Single, 1.450 in. O.D., 457 lbs./in. Rate, 1.320 in. Coil Bind Height, Each

Part Number: HRS-98117-1

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Valve Spring, LS, Dual, 1.295 in. O.D., 1.060 in. Coil Bind Height, 407 lbs./in. Rate, Each

Part Number: HRS-98118-1

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Valve Spring, Single w/Damp

Part Number: HRS-98220-1

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Valve Spring Retainers, Chromoly Steel, 7 Degree, 1.040 in. Outside Diameter, Set of 16

Part Number: HRS-97161

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Retainer, 10 Deg., 1.095" Behive

Part Number: HRS-97174

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Valve Springs, Valve Spring, Ovate Behive

Part Number: HRS-98110-1

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Valve Spring Retainers, Chromoly Steel, 7 Degree, 1.370 in. Outside Diameter, Each

Part Number: HRS-97110-1

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Valve Spring Retainers, Chromoly Steel, 7 Degree, 1.250 in. Outside Diameter, Each

Part Number: HRS-97112-1

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Camshaft, Mechanical Flat Tappet, Advertised Duration 291/301, Lift .505/.505, Chevy, Small Block, Each

Part Number: HRS-112082-05

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 285/289, Lift .480/.488, Chevy, Small Block, Each

Part Number: HRS-112141-10

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 275/275, Lift .501/.501, Oldsmobile, V8, Each

Part Number: HRS-510991-08

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Rocker Arms, Long Slot, Stud Mounting Style, Non-roller, 1.5 Ratio, Steel, Chevy, Small Block, Each

Part Number: HRS-90005-1

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Rocker Arms, Long Slot, Stud Mounting Style, Non-roller, 1.6 Ratio, Steel, Chevy, Small Block, Each

Part Number: HRS-90006-1

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Camshaft, Mechanical Flat Tappet, Advertised Duration 276/280, Lift .535/.540, Chevy, Small Block, Each

Part Number: HRS-110812-06

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 275/285, Lift .470/.470, Chevy, Small Block, Each

Part Number: HRS-110951-10

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 285/285, Lift .480/.480, Chevy, Small Block, Each

Part Number: HRS-112031-08

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 267/267, Lift .496/.496, Ford, 351C, 351M, 400, Each

Part Number: HRS-231031-10

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 297/307, Lift .585/.606, Ford, 351C, 351M, 400, Each

Part Number: HRS-232531-08

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 273/273, Lift .496/.496, Ford, 429, 460, Each

Part Number: HRS-242201-10

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 303/309, Lift .595/.595, Chevy, Big Block, Each

Part Number: HRS-121271-10

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 305/313, Lift .612/.595, Chevy, Big Block, Each

Part Number: HRS-121861-10

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Camshaft, Mechanical Flat Tappet, Advertised Duration 285/291, Lift .595/.607, Chevy, Big Block, Each

Part Number: HRS-122312-10

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Camshaft, Mechanical Flat Tappet, Advertised Duration 303/313, Lift .623/.650, Chevy, Big Block, Each

Part Number: HRS-122332-08

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