2003 Engines & Components

Cylinder Deactivation Delete Combo, 6.0/6.2L AFM DOD Delete, Head Bolts, Lifters/Trays, Non PCV Valley Cover, Head Gaskets, Chevy LS, Kit

Part Number: CMB-09-0032

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Cannot be shipped Internationally if shipped by air

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Pro LS 2618 Forged Piston, 4.030 bore, 1.110 C.H., 20cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.0 LY6 LQ4 LQ9, Set of 8

Part Number: SUM-110927403020

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Pistons, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Set of 8

Part Number: SUM-17351C-00

4.65 out of 5 stars ( 23 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Camshaft, BTR, Stage 2 Truck V2, No Springs Required, 212 int./218 exh. Duration, 0.480 in./0.480 in. Lift, 111 LSA, 3-Bolt, 4.8L, 5.3L, 6.0L, Each

Part Number: BTC-31218110NSR

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Pro LS Piston and Rod Kit, 326 Cid, 3.785 bore, Standard 3.622 stroke, 6.125 rod, 2cc dome, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR36L7852

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Driver Side, Chevy, GMC, 4.8, 5.3, 6.0, 6.2L, Kit

Part Number: JLT-3084D-B

4.8 out of 5 stars ( 10 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Main Bearings, P Series, 1/2 Groove, Standard Size, Tri Metal, Chevy, Small Block, Set of 5

Part Number: CLE-MS909P

4.67 out of 5 stars ( 24 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Oil Galley Barbell Plug, OEM-Style, Billet Aluminum, Viton® O-Rings, Chevy, LS, Each

Part Number: IRP-EGM-501

5.0 out of 5 stars ( 20 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Valve Springs, Beehive, Single, 1.290 in. O.D., 313 lbs./in. Rate, 1.140 in. Coil Bind Height, Set of 16

Part Number: RSC-PAC-1218-16

4.93 out of 5 stars ( 14 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Pro LS 2618 Forged Piston, 4.000 bore, 1.299 C.H., 2cc Flat, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9, Set of 8

Part Number: SUM-2999274000-2

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Rod Bearings, Race Series, Tri-Metal, Chevrolet, Small Block, LS, Set of 8

Part Number: PEB-8B663H-STD

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Pro LS 2618 Forged Pistons. 3.780 bore, 1.326 C.H., 7cc dish, Std. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Coated, 4.8L 5.3L Vortec Truck

Part Number: SUM-326945780-7P

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Rocker Arm Trunnion Upgrade Kit, Trunnion Upgrade, Chevy, LS, Set of 16

Part Number: SME-143002

4.69 out of 5 stars ( 59 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Timing Chain and Gear Set, Adjustable, Billet Steel, Single Roller, 3-Bolt, 1X, Standard Spacing, LS, Kit

Part Number: SUM-G6645-1X

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Rod Bearing, H Series, .001 in Thinner, TM-77, Chevy, BBC, Each

Part Number: CLE-CB743HXN

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Pro LS 4340 Rotating Assembly, 408 Cid., 4.030 bore, 4.000 stroke, 58x, 6.125 rod, 8cc dish, 11.1:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400308

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Engine Oil Dipstick, Flexible Black Braided Stainless Steel, Billet Aluminum Handle, Black Anodized, Chevy, Small Block, LS, Truck, Each

Part Number: LOK-XED-5019

4.36 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Pro LS 4340 Forged Steel Crank, 3.622 Stroke, 58X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS3

Part Number: SUM-180LS362258X

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Timing Belt Kit, Water Pump, for use with Honda®/Acura®, V6, Kit

Part Number: ASN-TKH-002

4.8 out of 5 stars ( 25 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Engine Oil Dipstick, GM LS Retrofit, Plastic Handle, Yellow, Steel Tube, Black Powdercoated, Chevy, Small Block, Each

Part Number: HLY-302-15

2.29 out of 5 stars ( 35 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Rod Bearings, HP-Series, Standard Size, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807HPN

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Stage 3 Pro LS Turbo Cam. 232/234 115.5 + 5.5, .600/.575 Lift, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, Vortec Truck LS1 LS2 LS6 LS3 LS7 LS9 LQ4 LQ9 LM7, Each

Part Number: SUM-8716R1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Oil Filter, Performance Gold, Canister, 4.69 in. Tall, 3.69 in. Diameter, 13/16 in.-16 Thread, Spin-On, Each

Part Number: KNN-HP-2002

4.86 out of 5 stars ( 76 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Chevy, 4.8, 5.3L, Set of 5

Part Number: KGB-MB5293SI

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Piston Rings, Plasma-moly, 3.780 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-41859CP

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air