Availability
2003 Engines & Components
Oil Filter Relocation Kit, Dual Filter, 72 in. Hose Length, Kit
Part Number: SUM-G4986-1
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pro LS 2618 Forged Piston, 4.040 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-2999274040-2
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Cam and Lifter kit, Camshaft, Stage 2, LS Truck Swap Cam, High lift version, 218/227 112+2, .600/.600 Lift, 3-bolt, LS1 LS2 LS6 LS3 LQ4 LY6 LQ9 Each
Part Number: SUM-K8720R1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Harmonic Balancer, Super Damper, External Balance, Steel, Chevy/GMC, Duramax Diesel, Each
Part Number: ATI-917371
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Lifter Guide, Hydraulic Roller Style, Plastic, Chevy, LS, Non AFM/DOD engines, Each
Part Number: SUM-150132
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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: Tomorrow
Estimated Ship Date: Tomorrow
Main Bearings, H Series, 1/2 Groove, .010 in. Crankshaft Undersize, Tri Metal, Chevy, Small Block, Set of 5
Part Number: CLE-MS909H10
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Rod Bearings, Direct Replacement, 0.010 in. Crankshaft Undersize, Bi Metal, Chevy, Small Block, Set of 8
Part Number: SUM-171010
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pistons, Forged, Flat, 4.060 in. Bore, 350 Chevy, Set of 8
Part Number: DMS-8700-4060
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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: Tomorrow
Estimated Ship Date: Tomorrow
Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Counterclockwise, Power Steering, GM 2, Black Finish, Chevy, 4.8-7.0L, Kit
Part Number: HLY-20-186BK
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Cam and Lifter KIt Muscle Car Replacement SBC Flat tappet hydraulic,L-79 350 hp 327 Cam with Lifters
Part Number: SUM-K1121
Not Yet Reviewed
Cannot be shipped Internationally
Cannot be shipped Internationally
Rod Bearings, Race Series, Tri-Metal, Chrysler, Dodge, Jeep, Hemi, Set of 8
Part Number: PEB-8B1808H-STD
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Accessory Drive Systems, LS Engine Swap, Serpentine Style, Alternator, Power Steering, Pullies, 6-groove, Natural Finish, Chevy, LS, 4.8-7.0L, Kit
Part Number: HLY-20-156
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve Covers, Center Bolt, Tall, Finned, Cast Aluminum, Black Anodized, with Gaskets and Mounting Hardware, Chevy, LS, Pair
Part Number: TSN-JM8082-2BK
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Camshaft Drive, Link Belt, Steel Sprockets, Ford, 4.6L, Kit
Part Number: FMS-M-6004-462V
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Cooler Block-Off Plate, Aluminum, Natural, GM, LS, Each
Part Number: ICB-551621
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Camshaft Thrust Plates, GM Genuine Parts, Solid Type, Steel, Chevrolet, Each
Part Number: ADO-12589016
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Cylinder Head Fasteners, Original Head Bolt Kits, Hex, Steel, Zinc Plated, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, Kit
Part Number: MAH-GS33449
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Pump, High Volume, Standard Replacement, Includes Gasket, Ford, 4.6/5.4/6.8L, SOHC Modular, Each
Part Number: MEL-M176HV
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Alternator Bracket Component, Iron Block Accessory Support Bracket, Extension Arm Type, Aluminum, Chevrolet, Small Block LS, Each
Part Number: ICB-551921-LS01
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Crate Engine, Remanufactured, Long Block, Assembled, GM, 6.0L, 4WD, Each
Part Number: VRE-VCTF4WD
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
ATK High Performance Chevy LQ4 6.0L 460 HP Long Block Crate Engines HP93
Estimated Ship Date: Tomorrow
Engine Drive System, Front Runner, Aluminum, Polished, Chevy LS, Small Block, Kit
Part Number: VTA-174014
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Harmonic Balancer, Underdrive, Internal Balance, Aluminum, Steel, Black, Chevy, 5.7L, Each
Part Number: ATI-917279
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Cylinder Head, Bare, 68cc Combustion Chamber, 276cc Intake Runner, 92cc Exhaust Runner, Aluminum, Chevy, LS, Each
Part Number: FLK-LS3-500
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster