2003 Camshafts & Valvetrain Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ LS Rocker Arms SME-14301M

Summit Racing™ LS Rocker Arms SME-14301M

Rocker Arm, Moly Coated, Ductile Iron, Roller Fulcrum Type, 1.7 Ratio, Narrow Style, Chevy, LS, Each

Part Number: SME-14301M

3.0 out of 5 stars ( 1 )

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Cloyes Timing Chain Kits 9-0700S

Engine Timing Chain Kit

Part Number: CLO-9-0700S

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Manley Severe Duty Series Stainless Steel Valves 11503-6

Valves, Exhaust, Stainless Steel, 1.500 in. Diameter, .342 in. Stem, 4.725 in. Length, Buick V6, Set of 6

Part Number: MAN-11503-6

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

PAC Racing RPM Series Valve Springs PAC-1211X

Valve Spring, RPM Series, Beehive, Single, 1.290 in. O.D., 384 lbs/in. Rate, 1.100 in. Coil Bind Height, Each

Part Number: RSC-PAC-1211X

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Summit Racing™ Pro LS Automotive Camshafts SUM-8729R1

Pro LS Big Gun 1 Hydraulic Roller Cam, Stage 4.5 , 240/247, 115.5 + 5.5, .625/.605 with 1.7, .662/.641 with 1.8, 3700-7100+ RPM, 6.2+, Each

Part Number: SUM-8729R1

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Cloyes Replacement Timing Chains 9-132

Replacement Timing Chain, True Roller, AMC 290-401, Chain Only, Each

Part Number: CLO-9-132

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Rollmaster Gold Series Timing Sets NA-CS1160

Timing Chain and Gear Set, Gold Series, Double Roller, Billet Steel Sprockets, Chevy, LS1, Set

Part Number: RMR-NA-CS1160

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

S&S Cycle Standard Forged Rocker Arms 900-4119A

ROCKER ARM SET NON-ROLLER

Part Number: SSY-900-4119A

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

S&S Cycle Street Performance .585 Valve Spring Kits 900-0593

S&S BEEHIVE CONICAL SPRING KIT

Part Number: SSY-900-0593

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

PRW Rocker Arm Adjuster Screws 9540811

Rocker Arm Adjusting Screws, 3/8 in.-24 Thread, 10mm Ball, 12-Point Nuts, Dodge/Cummins, 24V Engines, Each

Part Number: PQX-9540811

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COMP Cams Sportsman Solid Roller Lifters 96956B-16

Lifter, Sportsman, Mechanical Roller, Vertical Link, 0.842 in. Diameter, w/ Bushing, Seat Height 2.210 in., GEN III/IV LS, Chevy, Set of 16

Part Number: CCA-96956B-16

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Melling Replacement Valve Locks VL-1097

Valve Lock - Pair

Part Number: MEL-VL-1097

Not Yet Reviewed

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Melling Valve Springs VS-2254

Valve Springs, Single, 1.046/1.263 in. Diameter, 105 lbs. Seat Pressure, 1.139 in. Coil Bind Height, Each

Part Number: MEL-VS-2254

5.0 out of 5 stars ( 2 )

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Melling Valve Springs 461219

Valve Spring, Single, 1.072 in. / 1.307 in. Diameter, Chevy, LS, Each

Part Number: MEL-461219

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Manley NexTek Valve Springs 221428-16

Valve Springs, Single, 1.311 in. Outside Diameter, 341 lbs./in. Rate, 1.085 in. Coil Bind Height, Set of 16

Part Number: MAN-221428-16

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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ACDelco Cylinder Deactivation Components 24051711

VALVE ASM

Part Number: ADO-24051711

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Manley Severe Duty Series Stainless Steel Valves 11748-8

Valves, Intake, NK-844 Stainless, 1.940 in. Diameter, 5.140 in. Length, Chevy, Small Block, Set of 8

Part Number: MAN-11748-8

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Pioneer Automotive Valve Locks SS-555-HD

Valve Locks

Part Number: PIO-SS-555-HD

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Trick Flow® Replacement Valves TFS-30500211-1

Valve, Intake, Stainless Steel, 2.000 in. Diameter, 8.0mm Stem, 4.900 in. Length, GenX® 205, GM LS, Each

Part Number: TFS-30500211-1

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OMIX-ADA Timing Chain Guides 17453.7

Timing Chain Guide, Plastic, Black, Jeep

Part Number: OMX-1745370

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COMP Cams Replacement Rocker Arm Trunnions 137021

Rocker Arm Trunnion, Chevy, Each

Part Number: CCA-137021

3.5 out of 5 stars ( 2 )

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Manley Race Series Stainless Steel Valves 11680-8

Valve, Race, NK-844 Stainless Steel, Intake, 2.055 in. Diameter, 4.874 in. Length, Chevy, Each

Part Number: MAN-11680-8

Not Yet Reviewed

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Manley Severe Duty Series Stainless Steel Valves 11747-8

Valves, Exhaust, XH-428 Stainless, 1.500 in. Diameter, 5.140 in. Length, Chevy, Small Block, Set of 8

Part Number: MAN-11747-8

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Rollmaster Red Series Timing Sets NA-CS6150

Buick, Chevrolet, Oldsmobile V6 L36-L67 Double Row

Part Number: RMR-NA-CS6150

Not Yet Reviewed

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COMP Cams Ultra Pro Magnum Rocker Arms 1677-1

Rocker Arm, Ultra Pro Magnum, Full Roller, 1.8 Ratio, Chromoly Steel, Pedestal Mounting, Chevy, Each

Part Number: CCA-1677-1

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today