2003 Engines & Components

COMP Cams Computer-Controlled Camshafts 20-602-9

COMP Cams Computer-Controlled Camshafts 20-602-9

Camshaft, Hydraulic Roller Tappet, Advertised Duration 262/264, Lift .480/.512, Mopar, Small Block, Each

Part Number: CCA-20-602-9

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Gator Fasteners Heavy-Duty Head Stud Kits HSK73

Cylinder Head Studs, Heavy Duty, Chromoly, 12-Point Nuts, 12mm, Ford, 7.3L, Powerstroke Diesel, Kit

Part Number: GFN-HSK73

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

D.S.S. E Series Forged Piston and Ring Kits K8702-4000

Piston Set, 350 SBC E Series -8cc Flat Top 4 Valve relief Piston Set. 4.000 bore

Part Number: DMS-K8702-4000

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Enginetech - Cylinder Heads for 1999-2003 F-150, 2004 F-150 HERITAGE - CH1109R

Engine Cylinder Head Complete Reman 99-04 FRD 5.4L

Part Number: EGN-CH1109R

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Summit Racing™ Engine Rebuild Kits 08-0072

Engine Rebuild, Hypereutectic Dish Top, Plasmamoly Rings, Stock Bore, Bearings, Chevy, LS, Kit

Part Number: CMB-08-0072

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Modern Classic Series Small Block Chevy Style LS Valve Covers GMLS1002

Valve Covers, Cast Aluminum, Small Block Chevy Style for LS, Breather Tube, 1.625 in. Tall, Finned, LS Classic Script, Natural, Gen 3/4, Chevy, Pair

Part Number: LSS-GMLS1002

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Sikky Manufacturing LSX Swap Oil Pans OP004

Oil Pan, Universal LSX Swap Oil Pan - Mid Sump - Includes: Removable Windage/Anti Slosh Baffle With Trap Doors, Magnetic Drain Plug

Part Number: SKM-OP004

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Canton Racing Road Race Series Wet Sump Oil Pans 15-276

4.25 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Fluidampr Harmonic Dampers 840821

Harmonic Balancer, Internal Balance, Steel, Black, Toyota, 2JZ, Each

Part Number: FLU-840821

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 5, 2026 if ordered today

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Estimated Ship Date: Jun 5, 2026 if ordered today

D.S.S. E Series Forged Piston and Ring Kits K8700-4040

Piston Set, 350 SBC E Series -4cc Flat Top Piston Set. 4.040 bore

Part Number: DMS-K8700-4040

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Mahle PowerPak Piston and Ring Kits 930217608

Piston and Ring Kit, Forged, 3.908 in. Bore, Chevy, Kit

Part Number: MLE-930217608

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

VEGE Remanufactured Cylinder Heads 2CE2

Cyl Head, CHEV 6.5 92-00 CYL HEAD

Part Number: VRE-2CE2

Not Yet Reviewed

Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

Summit Racing™ Forged Pro Pistons SUM-SBC383040L

Forged Pro pistons for 383 Stroker Chevy Long Rod, 4.040 bore, 1.125 C.H., 3.75 in. stroke, 6 in. rod, 9cc reverse dome 10.5@64cc, 10.1@67cc, 9.7@72cc

Part Number: SUM-SBC383040L

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ Forged Pro Pistons SUM-SBC383040

Forged Pro pistons for 383 Stroker Chevy, 4.040 bore, 1.425 C.H., 3.75 in. stroke, 5.7 in. rod, 9cc reverse dome 10.5@64cc, 10.1@67cc, 9.7@72cc.

Part Number: SUM-SBC383040

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ICON Premium Forged Pistons IC545C.STD

Pistons, Premium, Forged 4032 Aluminum, 3.780 in. Bore, 3.622 in. Stroke, Flat Top, Chevy, LS, Set of 8

Part Number: UEM-IC545C-STD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 8, 2026 if ordered today

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Estimated Ship Date: Jun 8, 2026 if ordered today

Mahle Original OE Replacement Pistons 224-3403.020

Piston - GMC Trk. 395 (6.5L) Diesel(92-97) w/Reduced Compression Distance by .010"

Part Number: MAH-2243403020

Not Yet Reviewed

Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

D.S.S. SX-Series Forged Pistons 1830-4000

Pistons, SX-Series, Forged, 3.00cc Flat, 4.000 in. Bore, Chevy LS, Set of 8

Part Number: DMS-1830-4000

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Fluidampr Harmonic Dampers 760131

Harmonic Balancer, Chevy, GMC, 6.6L Duramax, Internal Balance, Steel, Black, Each

Part Number: FLU-760131

Not Yet Reviewed

Estimated Ship Date: Jun 5, 2026 if ordered today

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Estimated Ship Date: Jun 5, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ATI Super Damper Diesel Harmonic Balancers ATI917378

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COMP Cams Magnum Hydraulic Roller Camshafts 56-460-8

Camshaft, Hydraulic Roller Tappet, Advertised Duration 270/276, Lift .500/.510, Chevy 1992-2002, 4.3L, Each

Part Number: CCA-56-460-8

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Moroso Drag/Road Race Oil Pans 20159

Oil Pan, Road Race, Steel, Black, 7 qt., Rear Sump, LS Swap, Chevy, Each

Part Number: MOR-20159

Not Yet Reviewed

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Special Offer

Buy this Oil Pan and get a Free Moroso Oil Filter!

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Moroso Street/Strip Oil Pans 21156

Oil Pan, Steel, Clear Zinc, Dry Sump, Three Rail Pickup, Chevrolet, LS Engine, Each

Part Number: MOR-21156

Not Yet Reviewed

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Special Offer

Buy this Oil Pan and get a Free Moroso Oil Filter!

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Cloyes Timing Chain Kits 9-0711S

Timing Set

Part Number: CLO-9-0711S

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

PRW Cylinder Head Stud Kits 1044501

Cylinder Head Studs, 4140 Alloy, 12-Point Nuts, Parallel Ground Washers, 200,000 PSI Tensile Strength, Ford, 7.3L, Powerstroke, V8, Diesel, Kit

Part Number: PQX-1044501

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D.S.S. SX-Series Forged Piston and Ring Kits K1831-4030

Pistons, Rings, SX-Series, Forged, 10.00cc Dish, 4.030 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1831-4030

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Mahle PowerPak Piston and Ring Kits 930217698

Piston and Ring Kit, Forged, 3.898 in. Bore, Chevy, Kit

Part Number: MLE-930217698

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

ICON Premium Forged Pistons IC741.030

Pistons, Forged, Flat, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Mopar, Small Block, Set of 8

Part Number: UEM-IC741-030

Not Yet Reviewed

Estimated Ship Date: Jun 5, 2026 if ordered today

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Estimated Ship Date: Jun 5, 2026 if ordered today