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2003 Engines & Components

Individual Parts

Results 301 - 325 of 2000 +

Harmonic Balancer, Race Performance, Chrysler, Dodge, Plymouth, 239, 318, 340, Each

Part Number: PBB-PB1004SS

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Rocker Arms, Pedestal Mount, Full Roller, Aluminum, 1.8 Ratio, Chevy, 4.8/5.3/5.7/6.0/7.0L, Set of 16

Part Number: SUM-G6981

4.0 out of 5 stars ( 6 )

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Camshaft, American Muscle, Hydraulic Roller Tappet, Advertised Duration 274/285, Lift .525/.525, Chevy, Small Block LS, Each

Part Number: HRS-197715-10

5.0 out of 5 stars ( 8 )

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Valve Covers, Tall -plus 0.54 in. Inside, Centerbolt, Chevrolet Logo, Cast Aluminum, Red Gloss Finish, Baffled, w/Grommets, Hardware, Chevy, LS, Pair

Part Number: HLY-241-404

4.0 out of 5 stars ( 1 )

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Pistons, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: SUM-17365FC-40

5.0 out of 5 stars ( 2 )

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Valve Covers, Cast Aluminum, Gloss Black, Chevrolet Logo, Chevy, Small Block, LS, Pair

Part Number: PRO-141-268

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Engine Valley Covers, Gen III, LS .0.250 in. Thick, Aluminum, Chevy, Small Block Gen III, Each

Part Number: LSS-GMLS2001M

4.0 out of 5 stars ( 1 )

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Valve Covers, Aluminum LS, Centerbolt, Tall, Plain, Cast Aluminum, Natural Finish, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-110

4.8 out of 5 stars ( 15 )

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Camshaft, '03-07 5.7 Dodge RAM replaces 53022064aa and 63021730ba, Non-MDS, Non-VVT, 244/253 Advertised Duration, 0.477/0.465 Lift Dodge, Each

Part Number: SUM-5700

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Oil Pump, High-Volume, High-Pressure, Ford, Lincoln, Mercury, Each

Part Number: MEL-10176HV

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Camshaft, Junkyard Dog, Hydraulic Roller, 293/309 Advertised Duration, 0.621/0.604 Lift, GM LS, Each

Part Number: CXM-03-01-0082

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Spacer and Adapters, LS Valve Cover, Adapter, Perimeter Bolt, Cast Aluminum, 1.385 in. Thick, Natural, Chevy, LS, 4.8-7.0L, Kit

Part Number: HLY-241-298

4.5 out of 5 stars ( 2 )

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Camshaft, Hydraulic Roller Tappet, Advertised Duration 269/277, Lift .607/.614, Chevy, Small Block, LS

Part Number: CCA-54-456-11

5.0 out of 5 stars ( 2 )

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Harmonic Balancer, Internal Balance, Steel, Black, Saab, Subaru, 2.0, 2.2, 2.5L, H-4, Each

Part Number: FLU-531101

5.0 out of 5 stars ( 4 )

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Cylinder Head Studs, Extreme Duty, 12-Point Heads, Ford, 6.0L Diesel, Kit

Part Number: SUM-910514

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Valve Springs, RPM Series, Beehive, Single, 1.307 in. O.D., 340 lbs/in. Rate, 1.100 in. Coil Bind Height, Set of 16

Part Number: RSC-PAC-1219X-16

3.0 out of 5 stars ( 1 )

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Stage 5.5 Pro LS Twin-Turbo Cam. 251/255 Dur., 117 + 6, .625/.615 Lift, 3-bolt, 5.3, 5.7, 6.0, 6.2, 7.0, Vortec Truck, LS1 LS2 LS6 LS3 LQ4 LQ9, Each

Part Number: SUM-8726R1

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Valve Covers, Slant Edge, Tall, Centerbolt, Cast Aluminum, Black Crinkle, LSX Top Style, Chevrolet, Small Block LS, Pair

Part Number: PRO-141-256

5.0 out of 5 stars ( 2 )

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Camshaft Kit, Pro LS Single Plane, Hydraulic Roller Tappet, Advertised Duration 289/300, Lift .525/.525, Chevy GM, LS/LSX, Gen III/IV, Each

Part Number: SUM-8700-1

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CAMSHAFT

Part Number: MEL-MTC-7

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Cam and Lifter kit, Stage 2 Pro LS Cam, Pro LS Turbo Cam. 226/230 Dur., .600/.575 Lift, 113+4 Lobe Sep. , 5.3, 5.7, 6.0, 6.2, LS1,2,6,3,LSX, Each

Part Number: SUM-K8706R1

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Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.8 Ratio, 7/16 in. Stud, Chevy, Big Block, Set of 16

Part Number: SCC-SCP1016

5.0 out of 5 stars ( 2 )

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Pistons, ICON FHR Series Piston and Ring Kits for GM LS, Forged Aluminum Pistons, Flat Top, for Use with 15 degree Heads, Chevy, 5.7L LS, Set of 8

Part Number: UEM-S00184

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Oil Filter Relocation Kit, Single Filter, 36 in. Length Hoses, Chevy, 4.8/5.3/5.7/6.0L, Kit

Part Number: MIL-21575

2.0 out of 5 stars ( 3 )

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M8542030

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