2003 Parts and Accessories

Pro LS Piston and Rod Kit, 325 Cid., 3.780 bore, Standard 3.622 stroke, 6.125 rod, 7cc dish, 9.7:1 @ 61cc, 9.3:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR36L7807

4.0 out of 5 stars ( 3 )

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

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 288/296, Lift .625/.605, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8710-1DS

Not Yet Reviewed

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

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Pro LS 4340 Piston and Rod Kit, 370 Cid., 4.030 bore, 3.622 stroke, 6.098 rod, 12cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR3603012

5.0 out of 5 stars ( 3 )

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

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Pro LS 4340 Piston and Rod Kit, 364 Cid., 4.000 bore, 3.622 stroke, 6.125 rod, 12cc Dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L00012

Not Yet Reviewed

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

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Clutch Kit, Concept 10.5 Dual-Disc Clutch, 1.125 in. - 26-spline, Organic Disc, Pressure Plate, Chevy, Small Block, Kit

Part Number: RAM-50-2125

4.0 out of 5 stars ( 2 )

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

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Stage 4 Pro LS Twin-Turbo Cam. 240/242 Dur., 116+4, .625/.605 Lift, 3-bolt, 5.3, 5.7, 6.0, 6.2, 7.0, Vortec Truck, LS1 LS2 LS6 LS3 LS7 LQ4 LQ9, Each

Part Number: SUM-8723R1

Not Yet Reviewed

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

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Pro LS Rotating Assembly, 325 Cid., 3.780 bore, Standard 3.622 stroke, 24X, 6.098 rod, 7cc dish, 9.7:1 @ 61cc, 9.3:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R24367807

Not Yet Reviewed

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

Summit Precision High-Tensile Tri-Metal Alloy Racing Main Bearings, Chevy LS, Standard Clearance, Racing 270 Deg. Oil groove, set

Part Number: SUM-7298HS

Not Yet Reviewed

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

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Clutch Kit, RXT Street Twin Power Pack, 8-Bolt, 26-Spline, 1.125 in. Input Shaft, 9.688 in. Disc Diameter, Metallic Disc, Unsprung Hub, Kit

Part Number: MCL-6435807M

4.67 out of 5 stars ( 3 )

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

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Distributor, Aluminum, Magnetic Pickup, Electronic Advance, Chevy, 4.3L, V6, Vortec, Each

Part Number: SUM-850097

4.75 out of 5 stars ( 65 )

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

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Battery, Yellow Top, 12 V, Deep Cycle, 900 Cold Cranking Amps, Top Post, BCI Group 31T, Each

Part Number: ULT-9050-160

5.0 out of 5 stars ( 8 )

Cannot be shipped Internationally if shipped by air

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Battery, Yellow Top, 12 V, Deep Cycle, 450 Cold Cranking Amps, Top Post, BCI Group 51, Each

Part Number: ULT-9071-167

5.0 out of 5 stars ( 9 )

Cannot be shipped Internationally if shipped by air

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Stage 4 Pro LS Truck Swap Cam, 226/230 112+4, .550 /.550 Lift, 3-bolt, Chevy, LS, Each

Part Number: SUM-8714R1

5.0 out of 5 stars ( 1 )

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

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Oil Filter Relocation Kit, Single Filter, 3/4-16 in. Filter Threads, 3/4-16 in. Engine Threads, Kit

Part Number: DER-15715

4.27 out of 5 stars ( 11 )

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

Clutch Kit, HDX, 12 in., Steel Flywheel, 6-Bolt, 168 Tooth, 26 Spline, Chevrolet, LS, Kit

Part Number: RAM-25-831

Not Yet Reviewed

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

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Stage 1 Pro LS Ghost Cam. 222/234 115+3, .600/.575 Lift, Ultimate Stealth Cam, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, Vortec Truck LS1 LS3 LS7 LS9 LQ4 LQ9 LM7

Part Number: SUM-8715R1

3.5 out of 5 stars ( 2 )

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

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Spark Plug Wires, Super Conductor, Spiral Core, 8.5mm, Red, Multi-Angle Boots, Universal, L6/V6, Set

Part Number: MSD-31179

4.11 out of 5 stars ( 9 )

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

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Connecting Rod, Pro Comp, 4340, I-Beam, 12-Point, Cap Screw, 6.125 in. Length, Chevy, Small Block, Set of 8

Part Number: SCA-26125716

5.0 out of 5 stars ( 4 )

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

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Head Gasket, MLX, 4.040 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5505-040

4.33 out of 5 stars ( 3 )

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

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Pro LS 4340 Rotating Assembly, 370 Cid., 4.030 bore, 3.622 stroke, 24X, 6.098 rod, 12cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R243603012

Not Yet Reviewed

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

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 180 Degree Boots, Chevy, Pontiac, 5.7L, 6.2L, Set

Part Number: MOR-73682

4.73 out of 5 stars ( 11 )

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

Rod Bearings, Direct Replacement, 0.010 in. Crankshaft Undersize, Bi Metal, Chevy, Small Block, Set of 8

Part Number: SUM-171010

4.79 out of 5 stars ( 14 )

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

Pistons, Forged, Flat, 4.060 in. Bore, 350 Chevy, Set of 8

Part Number: DMS-8700-4060

5.0 out of 5 stars ( 1 )

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

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Pro LS 4340 Rotating Assembly, 403 Cid., 4.005 bore, 4.000 stroke, 58x, 6.125 rod, 8cc dish, 11:1 @ 65cc, 10.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400058

Not Yet Reviewed

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

Gear Lube, Transmission Fluid and Gear Oil, 75W90NS, Synthetic, 1 qt., Each

Part Number: RED-58304

4.8 out of 5 stars ( 10 )

Cannot be shipped Internationally if shipped by air

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