2003 Engines & Components

Pistons, Hypereutectic, Flat, Coated Skirt, 4.030 in. Bore, Chevy, Set of 8

Part Number: SUM-17351C-30

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

• Free Shipping

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

Part Number: CLE-CB663HXN

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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

Part Number: CLE-MS909H

4.86 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

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

Part Number: HLY-241-178

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• Free Shipping

Valve Springs, Beehive, Single, 1.307 in. O.D., 1.800 in. Installed height, 340 lbs./in. Rate, 1.100 in. Coil Bind Height, Set of 16

Part Number: RSC-PAC-1219-16

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• Free Shipping

Harmonic Balancer, OEM Replacement, Cadillac, Chevy, Pontiac, LS, Each

Part Number: PBB-PB1117N

4.86 out of 5 stars ( 44 )

Estimated Ship Date: Tomorrow

• Free Shipping

Engine Rotating Assembly, Street/Strip, Forged Piston, Forged Crank, I-Beam Rods, Chevy, Small Block, LS2, Kit

Part Number: ESP-B627144030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping

Pro LS 4340 Rotating Assembly, 408 Cid., 4.030 bore, 4.000 stroke, 58x, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R584003020

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Oil Pump, Wet Sump Style, Standard-volume, High-pressure, Cadillac, Chevy, GMC, Each

Part Number: MEL-10355

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

• Free Shipping

Rocker Arms, Roller Fulcrum, Shaft Mounting Style, 1.7 Ratio, Steel, Chevrolet, 5.7L, 6.0L, Kit

Part Number: BTC-S0410

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping

Lifters, Hydraulic Roller, 0.842 in. O.D., Buick, Chevrolet, Pontiac, Set of 16

Part Number: CXM-J-2110R

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• Free Shipping

Valve Covers, Tall Height, Cast Aluminum, Black Crinkle, Plain, Chevy, LS, Pair

Part Number: SUM-440362

4.22 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

• Free Shipping

Pro LS Big Truck Torkinator High Lift. 212/218 Dur., 110+3, .600/.585 Lift, 3-bolt, 4.8 5.3 5.7 6.0 6.2, Vortec LM7 L33 LS2 L92 L96 LY6 LQ4 LQ9 , Each

Part Number: SUM-8728R1

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

• Free Shipping

Oil Pump, Standard-Volume, Standard Pressure, Chevy, Small Block/V6, Each

Part Number: MEL-M55

4.46 out of 5 stars ( 28 )

Estimated Ship Date: Tomorrow

Rod Bearings, XP-Series, Tri-Metal, Coated, Standard Size, Narrowed, Large Journal, Chevy, Small Block, LS, Set of 8

Part Number: KGB-CR807XPNC

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• Free Shipping

Crate Engines, Chrysler 5.7L Gen III Hemi 400 HP Long Block, 5.7L/345, Assembled, Aluminum Heads, without MDS, Chrysler, Dodge, Jeep, 5.7L, Each

Part Number: HPE-HP103T

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Core Charge $460.00
• Free Shipping

Valve Lifter Guide, Plastic, Hydraulic Roller, Non-AFM/DOD, Chevrolet, LS, Each

Part Number: ADO-12595365

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Main Bearings, XP-Series, Copper/Lead/Nickel, Standard Size, Chevy, 4.8, 5.3, 5.7, 6.0L, Set

Part Number: KGB-MB5013XPSTDX

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• Free Shipping

Crate Engine, Remanufactured Long Block, Assembled, Cadillac, Chevrolet, GMC, 5.3L LS, Each

Part Number: VRE-DCT8

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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

Accessory Drive Systems, LS Chevy S-Drive Serpentine Pulley Drive Systems, Pulleys, Alternator, Power Steering Pump, Chevrolet, Small Block LS, Kit

Part Number: EMS-MS117-90P

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

Accessory Drive Systems, LS Mid-Mount, Serpentine Style, Alternator, Water Pump, Power Steering, A/C, Hardware, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-180BK

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• Free Shipping

Main Bearings, H Series, 1/2 Groove, .001 in. Oversize for extra clearance, Tri Metal, Chevy, 4.8, 5.3, 5.7L,,6.0,6.2,7.0 Set of 5

Part Number: CLE-MS2199HX

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

• Free Shipping

Cam and Lifter kit, Pro SBC Retrofit Stage 2 Hyd.Roller LS Firing Order, 218/227 Dur., 110 LSA + 1 Adv, .525/.520 1.5 Ratio, 1800-6250 RPM Range

Part Number: SUM-K1222

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping

Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 bore, 4.000 stroke, 24X, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R24409035

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Lifters/Trays/Bolts, Hydraulic Roller, Chevy, LS Gen. 3 and 4, Gen. 5 LT, Kit

Part Number: SUM-HTLSKIT3

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping