2003 Engines & Components

Valve Covers, Profile, Centerbolt Mounting, Billet Aluminum, Polished, Ribbed Top, Chevy, Small Block LS, Pair

Part Number: BSP-P95470

5.0 out of 5 stars ( 1 )

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Crankshaft, 1-Piece Seal, Internal Balance, Forged 4340 Steel, 4.125 in. Stroke, Chevy, Each

Part Number: ESP-434641256100

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Head, GenX® 220, Fast As Cast®, Assembled, 65cc CNC Chambers, Titanium Retainers, GM LS2, Each

Part Number: TFS-3061T002

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Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.125 rod, 7cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR36L9037

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Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR36L9033

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Cam and Spring Combo, Adv. Duration 262/264, Lift .550/.550, Lobe Sep. 112, w/ Springs, Ford 4.6L/5.4L 2V, Kit

Part Number: TFS-K51802001

3.67 out of 5 stars ( 3 )

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Connecting Rod, Forged 4340 Steel, I-Beam, Cap Screw, Chevy, 6.6L Diesel, Set of 8

Part Number: BLN-GM6418-358

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Cylinder Head, GenX® 225, CNC Competition Ported, Assembled, 65cc CNC Chambers, GM LS2, Each

Part Number: TFS-30610001-C02

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Lifters, Hydraulic Roller, 0.842 in. O.D., Horizontal Link Bars, Chevrolet, Set of 16

Part Number: CXM-J-2126LSR

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Crankshaft, Internal Balance, Forged 4340 Steel, 3.543 in. Stroke, Ford, 4.6L, Each

Part Number: ESP-428135435933

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 9, 2025 if ordered today

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Pro LS 4340 Piston and Rod Kit, 359 Cid., 3.780 bore, 4.000 stroke, 6.125 rod, 5cc dish, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR407805

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Cylinder Head, GenX® 225, CNC Competition Ported, Bare, 65cc CNC Chambers, GM LS2, Each

Part Number: TFS-3061B001-C02

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CONNECTING ROD SET

Part Number: MAN-15042R-8

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Piston Set, 506 Viper/SRT K1-FX Series -0cc No Valve Relief Flat Top Piston Set. 4.030 bore

Part Number: DMS-K1-6480-4030

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Estimated Ship Date: Nov 25, 2025 if ordered today

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Valve Covers, Cast Aluminum, 409 Chevy Style for LS, 409 Decals, Breather Tube, 2.750 in Tall, Chrome Plated, Centerbolt, Gen 3/4, Chevy, Pair

Part Number: LSS-GMLS1004C

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 21, 2025 if ordered today

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Crankshaft, Compstar 4340 Forged LS, 4.000 Stroke, Internal Balance, 8 counterweight, 6-bolt Flange, Standard Post. Includes 24-tooth GM Reluctor, Ea.

Part Number: CPI-APO31Q-CS24

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 22, 2025 if ordered today

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Camshaft Kit, Retro-Fit, Rattler, Hydraulic Roller, 280/288 Advertised Duration, .525/.530 Lift, 109 LSA, Lifters, Chrysler, 273, 318, 340, 360, Kit

Part Number: HRS-CL718005-09

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Crankshaft, Forged 4340, Internal Balance, 4.750 in. Stroke, 6.700 Rod, Chevy Big Block, 8.1L, Each

Part Number: SCA-481030

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Cylinder Head, PowerPort® 190, CNC Street Ported, Assembled, 1.56" Springs, Titanium Retain, Small Mopar, Each

Part Number: TFS-6141T784-C00

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Valve Covers, 2.50 in. Tall, Centerbolt, Billet Aluminum, Natural, Moroso Logo, Includes Built-in Coil Mounts, Chevrolet, Small Block LS, Pair

Part Number: MOR-68476

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Pistons, Forged, Dome, 4.310 in. Bore, Chevy, Set of 8

Part Number: WIS-K238A6

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Crankshaft, 1-Piece Seal, Internal Balance, Forged 4340 Steel, 4.100 in. Stroke, Chevy, 5.7, 6.0L, Each

Part Number: MAN-190158

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Summit Chevy LS 4340 Forged Steel Crankshaft, 3.622 stroke, 24X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS362224

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Pulleys, Chevy LS Series, Serpentine, Performance Ratio, Billet Aluminum, Black, Water Pump, Alternator, With Power Steering, No Air Conditioning, Kit

Part Number: MCH-20085-08

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Lifters, Short Travel Hydraulic Roller Lifters, 0.842 in. O.D., Horizontal Link Bars, Chevrolet, Set of 16

Part Number: CXM-J-ST2126LSR

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