2003 Engines & Components

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: Tomorrow

• Free Shipping

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: Tomorrow

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: Tomorrow

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: Tomorrow

• Free Shipping

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: Tomorrow

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: Tomorrow

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: Tomorrow

Oil Pump, High Volume, Standard Replacement, Includes Gasket, Cadillac, Chevrolet, GMC, Pontiac, Hummer, 5.3/6.0/6.2L, V8, Each

Part Number: MEL-M365HV

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

• Free Shipping

Crate Engine, Remanufactured, Long Block, Assembled, GM, 5.3L, 4WD, Each

Part Number: VRE-VCT84WD

3.67 out of 5 stars ( 6 )

Estimated Ship Date: Mar 30, 2026 if ordered today

• Core Charge $445.00
• Drop Ship
• Free Shipping
• Special Order

Replica Block, Steel, Natural, Includes Hardware, Chevy, LS, Each

Part Number: SUM-774001

4.56 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

• Free Shipping

Rear Main Seal Cover, Aluminum, Natural, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Kit

Part Number: RNB-635-518

3.89 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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

Part Number: HLY-20-185P

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping

Rocker Arm Bolts, Pro Series, M8 x 1.25mm Thread, 2.560 in. Effective Stud Length, Kit

Part Number: ARP-234-7207

4.8 out of 5 stars ( 15 )

Estimated Ship Date: Tomorrow

• Free Shipping

Harmonic Balancer, Crank Pulley, 25 Percent Underdrive, SFI, Internal Balance, Short Spacing, 5.7, 6.0, 6.2L, Each

Part Number: SUM-C2503

4.88 out of 5 stars ( 17 )

Estimated Ship Date: Tomorrow

• Free Shipping

Piston Rings, Plasma-moly, 4.000 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-2M4860

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Connecting Rods, H-beam, Forged 4340 Steel, Magnafluxed, 6.125 in. Length Center To Center, Chevrolet, Small Block LS, Set of 8

Part Number: BTC-S0368

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• Free Shipping

Valve Covers, Aluminum LS, Center and Perimeter Bolt, Tall, Chevy Logo, Cast Aluminum, Polished, Two-Piece, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-176

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

• Free Shipping

Pistons, Pro Tru Street Pistons, 4.030 in. Bore, Forged, Dome, Please Verify Piston Pin Diameter Before Ordering, Chevrolet, LS, Kit

Part Number: WIS-PTS523A3

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

• Free Shipping

Connecting Rod Bolts, Pro Series, 2000 Alloy, Chevy, LS, Kit

Part Number: ARP-234-6301

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

• Free Shipping

Cam and Lifter kit, Stage 2, LS Truck Swap Cam, 218/227 112+2, .522/.524 Lift, 3-bolt, 4.8, 5.3, 5.7, 6.0, 6.2, Each

Part Number: SUM-K8701R1

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

Cylinder Heads, LSX Mongoose, Aluminum, Assembled, 65cc Combustion Chamber, 230cc Intake, Chevy, Pair

Part Number: AFR-1660

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 6, 2026 if ordered today

• Free Shipping
• Special Order

Engine Oil Dipstick, Midnight Series Anchor-Tight Locking Flexible, Passenger Side, Billet Aluminum, Black Anodized, Chevy, SB, LS, Car, Each

Part Number: LOK-X1220227

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

• Free Shipping

Valve Covers, Center and Perimeter Bolt, Tall, Chevy Logo, Cast Aluminum, Red Gloss, Two-Piece, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-179

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

• Free Shipping

Cam and Lifter kit, Pro SBC Stage 4 Hyd. Roller Cam, 224/232 Dur. 112 LSA + 2 Adv, .550/.540 1.5 Ratio, 2000-6500 RPM Range, 87-02 Gen 1 Roller Block

Part Number: SUM-K8803

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• Free Shipping

Pro LS 2618 Forged Piston, 4.030 bore, 1.299 C.H., 12cc Dish, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9,Set of 8

Part Number: SUM-299927403012

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping