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

ICT Billet Valve Cover Spacers 551641-5

ICT Billet Valve Cover Spacers 551641-5

Valve Cover Spacers and Adapters, Centerbolt Mounting, 0.500 in. Thickness, Billet Aluminum, Natural, Chevy, Small Block LS, Pair

Part Number: ICB-551641-5

4.4 out of 5 stars ( 10 )

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Melling Oil Pump Screen Assemblies 324S

Oil Pickup, Bolt-In, Stock Pan Style, 0.750 in. Tube Dia., Cadillac, Chevy, GMC, Hummer, 4.8, 5.3, 6.0L, Each

Part Number: MEL-324S

4.75 out of 5 stars ( 4 )

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ICT Billet Alternator Brackets 551177LS0-1

Alternator Brackets, Right Side Lower Mount, Engine Block Front Mount, Aluminum, Natural, Electric Pump Style, Serpentine, Chevrolet, LS, Kit

Part Number: ICB-551177LS0-1

1.0 out of 5 stars ( 1 )

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Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8718-1

Camshaft Kit, Pro LS Vortec Truck Swap, Hydraulic Roller Tappet, Advertised Duration 258/270, Lift .500/.500, Chevy, LS, Each

Part Number: SUM-8718-1

4.5 out of 5 stars ( 4 )

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ARP Pro Series Cylinder Head Studs 157-4301

Cylinder Head Studs, 12-point, Steel, Black Oxide, Washers, Rover, Kit

Part Number: ARP-157-4301

4.86 out of 5 stars ( 7 )

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ICT Billet Oil Pan Bolt Sets 551680

Oil Pan Bolts, Hex-flange, Steel, Natural, Chevrolet, Gen III/IV LS Engines, Set

Part Number: ICB-551680

5.0 out of 5 stars ( 4 )

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Mahle Original Premium Piston Ring Sets 41859CP.020

Piston Rings, Plasma-moly, 3.799 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-41859CP020

5.0 out of 5 stars ( 2 )

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ARP Main Stud Kits 140-5401

Main Studs, 2-Bolt Main, Mopar, Small, Big Block, B, LA, RB, Kit

Part Number: ARP-140-5401

4.33 out of 5 stars ( 3 )

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Harland Sharp Original Roller Rockers S40196

Rocker Arms, Pedestal Mount, Full Roller, Aluminum, 1.6 Ratio, 5/16 in. Stud, Jeep, 4.0L, Set of 12

Part Number: CSP-S40196

4.5 out of 5 stars ( 16 )

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D.S.S. E Series Forged Pistons 8710-4030

Pistons, Forged, Flat, 4.030 in. Bore, 383 Chevy, Set of 8

Part Number: DMS-8710-4030

5.0 out of 5 stars ( 2 )

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Cloyes Heavy-Duty Timing Sets C-3210

Timing Chain and Gear Set, Heavy Duty, Single Non-Roller, Iron/Billet Steel Sprockets, Chevy, Small Block, Set

Part Number: CLO-C3210

4.33 out of 5 stars ( 3 )

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ACL Performance Race Series Rod Bearing Sets 8B663H-010

Rod Bearings, Race Series, Tri-Metal, .010 in., .25mm Crankshaft Undersize, Chevrolet, Small Block, LS, Set of 8

Part Number: PEB-8B663H-010

Not Yet Reviewed

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Moroso Billet Aluminum Spur Gear Oil Pumps 22188

Oil Pump, High-Volume, high-Pressure, Wet Sump, Pickup Included, Chevy, Big Block, Mark IV, Kit

Part Number: MOR-22188

Not Yet Reviewed

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PRW High Performance Sportsman Harmonic Dampers 2324240

Harmonic Balancer, Sportsman, Internal Balance, Black, Jeep, L6, Each

Part Number: PQX-2324240

4.67 out of 5 stars ( 6 )

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Summit Racing™ Pro LS Crank and Rod Kits SUM-CR3624125

Engine Rotating Kits, Pro LS Crank and Rod Kits, Forged 4340 Steel, 6.125 in. Connecting Rod Length, 3.622 in. Stroke, Chevy, 5.3L, 5.7L, 6.0L, Kit

Part Number: SUM-CR3624125

Not Yet Reviewed

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Silv-O-Lite Hypereutectic Pistons 3517HC.75MM

Pistons, Hypereutectic, Flat, 102.35mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, V8, Set of 8

Part Number: UEM-3517HC-75MM

3.75 out of 5 stars ( 4 )

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ACDelco GM Genuine Parts Engine Valve Springs 12706568

Engine Valve Spring, Standard, Replacement, Single, Buick, Cadillac, Chevrolet, GMC, Isuzu, Pontiac, Saab, LS Engine, Each

Part Number: ADO-12706568

5.0 out of 5 stars ( 1 )

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PRW Rocker Arm Adjuster Screws 9531807

ADJUSTER SCREW KIT, VALVE LASH, MOPAR/CHRYSLER 273-440, Set of 16, 4135 Cup End

Part Number: PQX-9531807

4.0 out of 5 stars ( 4 )

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RT Off-Road Valve Covers for 1993-2004 WRANGLER, GRAND CHEROKEE, 1993-2001 CHEROKEE - RT35002

Valve Cover, Perimeter Bolt Mounting, Stock Height, Cast Aluminum, Red, 4.0L Top Style, Jeep, 4.0L, Each

Part Number: RTO-RT35002

3.0 out of 5 stars ( 13 )

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ARP Pro Series Cylinder Head Studs 234-4313

Cylinder Head Fasteners, 12-point Style, Stud, Mixed Length Lower, Early LS Style, ARP 2000 Material, 220,000 psi, Black Oxide Finish, Kit

Part Number: ARP-234-4313

5.0 out of 5 stars ( 1 )

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VEGE Remanufactured Cylinder Heads 2CH4

Cylinder Heads, Remanufactured, Assembled, Cast Iron, Natural, AM General, Cadillac, Chevy, GMC, Isuzu, Workhorse Custom Chassis, 5.7L, Each

Part Number: VRE-2CH4

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Vortec Cast Iron Cylinder Heads SUM-151124

4.5 out of 5 stars ( 74 )

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Summit Racing™ Pro LS Billet Adjustable Single Row Timing Chain Sets and Gears SUM-G6645-1X-005

Timing Chain and Gear Set, Adjustable, Billet Steel, Single Roller, 3-Bolt, 1X, -0.005 in. Line Hone, LS, Kit

Part Number: SUM-G6645-1X-005

Not Yet Reviewed

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ACDelco GM Genuine Parts Oil Pump Pickups for 1997-2013 CORVETTE - 12624497

Oil Pump Pickup, Engine Oil Pump Pickup Tube and Screen, Screen ASM Oil Pump Pickup with Suction Tube, 5.7L/6.2L, Each

Part Number: ADO-12624497

Not Yet Reviewed

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ACL Performance Race Series Rod Bearing Sets 8B663HXC-STD

Rod Bearings, Race Series, CT-1 Coated, Tri-Metal, .001 in., .025mm Extra Clearance, Chevrolet, Small Block, LS, Set of 8

Part Number: PEB-8B663HXC-STD

Not Yet Reviewed

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ATI Replacement Hubs ATI916032H2

Harmonic Balancer Component, Replacement Hub, Internal Engine Balance, Heat Treated (2) Two 3/16 in. Keyways, Cadillac, Chevy, Each

Part Number: ATI-916032H2

Not Yet Reviewed

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