2003 Parts and Accessories

Stage 1 SUM-8718 Pro LS Drop-in Truck Swap Cam, Maximum Torque for Towing and Efficiency, 205/217 112+2, .500 /.500 Lift, 3-bolt, 4.8, 5.3, 6.0, 6.2

Part Number: SUM-8718R1

4.56 out of 5 stars ( 25 )

Estimated Ship Date: Today

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Wheel, 61C S/S Super Sport, Steel/Aluminum, Chrome, 15 in. x 8 in., 5 x 4.75 in. Bolt Circle, 4.250 in. Backspace

Part Number: CRR-61C583442

4.73 out of 5 stars ( 45 )

Estimated Ship Date: Today

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Pro LS 4340 Rotating Assembly, 408 Cid., 4.030 bore, 4.000 stroke, 24X, 6.125 rod, 8cc dish, 11.1:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R24400308

Not Yet Reviewed

Estimated Ship Date: Today

Valve Spring Kit, Dual Valve Springs, Chromoly Retainers, Locks, Seals, Chevy, LS, Kit

Part Number: TFS-2500286P

3.47 out of 5 stars ( 15 )

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Cylinder Head Bolts, High Performance, Hex Head, Chevy 1997-2003, 4.8, 5.3, 5.7, 6.0L, Kit

Part Number: ARP-134-3609

4.77 out of 5 stars ( 70 )

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Battery, Red Top, 12 V, Starting, 800 Cold Cranking Amps, Top Post, BCI Group 34, Each

Part Number: ULT-9002-002

4.82 out of 5 stars ( 268 )

Cannot be shipped Internationally

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Differential, Eaton Detroit Truetrac, Limited Slip, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-913A561

4.87 out of 5 stars ( 31 )

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Engine Management Systems, Terminator X, Up to 8-Injectors, 8-Coil, Analog input, CANBUS, Sensors, Controller, Chevy, 4.8-6.0L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-904

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Rocker Arms, Trunnion Upgrade, Assembled, Cast Steel, 1.7 Ratio, Straight Body, Cathedral Port, Chevy, LS1, LS2, LS6, LQ4, LQ9, Set of 16

Part Number: SUM-141556

4.06 out of 5 stars ( 17 )

Estimated Ship Date: Today

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Harmonic Balancer Bolt, 27mm 12-Point Head, 4.325 in. UHL, Chromoly, Black Oxide, LS Gen. III/IV, Chevrolet, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, Each

Part Number: ARP-234-2503

4.95 out of 5 stars ( 180 )

Estimated Ship Date: Today

Automatic Transmission, GM Bellhousing, Automatic Valve Body, Forward Shift Pattern, Chevy, 4L60E, RWD or 2WD, Each

Part Number: SUM-700461

3.4 out of 5 stars ( 15 )

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Power Steering Pump, New, Saginaw P Series, w/Reservoir, 3/8 in. Hose Barb Inlet, 5/8 in.-18 Female Inverted Flare Outlet, Keyway, Black, Each

Part Number: LSC-13154

3.93 out of 5 stars ( 27 )

Estimated Ship Date: Today

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Performance Meter, Monitor, Gauge, Insight CTS3, OBDII, 5 in. Color Touch Screen, Each

Part Number: EGE-84130-3

4.21 out of 5 stars ( 24 )

Estimated Ship Date: Today

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Gen. 3/4 Chevy LS Rocker Arm Trunnion Upgrade Kit, Bronze Bushing, Retrofit, Rectangle and Cathedral Port Rockers, Set of 16

Part Number: SUM-141560

4.34 out of 5 stars ( 71 )

Estimated Ship Date: Today

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Oil Cooler, 11.5 in. x 15.75 in. x 5 in. Cooler, 10 in. Fan, -6 AN Male, Each

Part Number: DER-13700

4.87 out of 5 stars ( 47 )

Estimated Ship Date: Today

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Brake Launch Control, Chevy LS, 2-Step Launch Control, Each

Part Number: MSD-8733

4.67 out of 5 stars ( 88 )

Estimated Ship Date: Today

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Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Sensors, Trans and Tuner Controller, Chevy, LS, 5.7L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-916

4.64 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Pro LS 4340 Forged Steel Crank, 4.000 Stroke, 58X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS3

Part Number: SUM-180LS400058X

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Summit Chevy LS 4340 Forged Steel Crankshaft, 4.000 stroke, 58X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS400058

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jul 6, 2026 if ordered today

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Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Power Steering, AC, SD-7, Natural Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-185

4.71 out of 5 stars ( 28 )

Estimated Ship Date: Today

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Oil Pump, Wet Sump Style, High-volume, High-pressure, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: MEL-10355HV

5.0 out of 5 stars ( 4 )

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Engine Dolly, Steel, Black Powdercoat, Wheels Included, GM LS 99-on 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, Each

Part Number: SUM-910058

3.95 out of 5 stars ( 85 )

Estimated Ship Date: Today

Engine Management Systems, Terminator X, Up to 8-Injectors, 8-Coils, Analog input, CANBUS, Sensors, Controller, Chevy, 5.7L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-909

4.56 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Fluid Cooler, Oil Cooler Kit, Transmission Cooler Type, Plate Construction, 14 Rows, Aluminum, Natural, Cadillac, Chevrolet, GMC, Each

Part Number: MIO-MMTC-GMT-99

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Headlight Assembly, Sealed LED Headlight, High/Low Beam, 3-Prong Outer, 5.75 in, Clear Fluted Glass Lens, Black Housing, Round, Each

Part Number: SUM-RP22675

4.78 out of 5 stars ( 18 )

Estimated Ship Date: Today