CHEVROLET Chevy small block Gen III/IV (LS-based engines) Engines & Components

Cylinder Head, GenX® 255, CNC Comp Port, Assembled, 69cc CNC Chamber, 450 Lb. Springs, Ti Retain, GM LSX, Each

Part Number: TFS-3261T002-C01

4.25 out of 5 stars ( 4 )

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Rocker Arms, Sportsman Series, Full Roller, 1.7 Ratio, Aluminum, for LS3 Heads, Chevy, 6.2L, Kit

Part Number: JES-KSS-467070

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Cylinder Head, GenX® 260, CNC Comp Port, Assy, 70cc CNC Chamber, 450 Springs, Ti Retain, 6-Bolt, GM LSX, Each

Part Number: TFS-3271T004-C01

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Cylinder Head, GenX® 255, CNC Comp Port, Assy, 69cc CNC Chamber, 450 lbs. Springs, Ti Retain, 6-Bolt, GM LSX, Each

Part Number: TFS-3261T004-C01

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Pulleys, Chevy LS Series, Serpentine, Performance Ratio, Billet Aluminum, Black, Water Pump, Alternator, With Power Steering and Air Conditioning, Kit

Part Number: MCH-20095-08

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Cylinder Head, GenX® 260, CNC Comp Port, Assembled, 70cc CNC Chamber, 450 Lb. Springs, Ti Retain, GM LSX, Each

Part Number: TFS-3271T002-C01

5.0 out of 5 stars ( 1 )

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Pulleys, Pro-Track Serpentine Conversion, Billet Aluminum, Black Powdercoated, Water Pump, Power Steering Pump, With A/C, Chevy, Kit

Part Number: MCH-20035-08

5.0 out of 5 stars ( 1 )

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Cylinder Heads, E-Street, 15-Degree, for GM LS3, with 0.660 in. Lift, Aluminum, Assembled, Chevy, Pair

Part Number: EDL-77618

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Engine Rotating Kits, Pro LS Crank and Rod Kits, Forged 4340 Steel, 6.098 in. Connecting Rod Length, 3.622 in. Stroke, Chevy, 5.3L, 5.7L, 6.0L, Kit

Part Number: SUM-CR3624098

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Cylinder Heads, E-Street, Assembled, Aluminum, 64cc Chamber, 210cc Intake Runner, 75cc Exhaust Runner, Cathedral Port, Chevy, Small Block LS, Pair

Part Number: EDL-7764

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Pulleys, Pro-Track Serpentine Conversion, Billet Aluminum, Polished, Clear Powdercoated, Air Conditioning, Power Steering, Chevrolet, LS, Kit

Part Number: MCH-20035

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Nov 18, 2025 if ordered today

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Rocker Arms, Sportsman Series, Solid Full Roller, 1.7 Ratio, Aluminum, Shims, Chevy, Small Block LS, Kit

Part Number: JES-KSS-317070T

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Estimated Ship Date: Oct 9, 2025 if ordered today

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Cylinder Head, GenX® 280 HIP, CNC Competition Ported, Assembled, 280cc Ports, Titanium Retainers, 6-Bolt Pattern, GM LS3, LSX, Each

Part Number: TFS-3261T04-HC01

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Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Sanden 508 A/C, Chevy, V8, Kit

Part Number: HLY-20-137

3.36 out of 5 stars ( 11 )

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Connecting Rods, I-Beam, Forged 4340 Steel, Shot-Peened, Floating, 6.125 in. Long, GM LS, Set of 8

Part Number: OLV-L6125-STSW8

5.0 out of 5 stars ( 2 )

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Pulley Kits, LS Swap, Serpentine, Alternator, Power Steering, A/C, GM Type 2, Kit

Part Number: HLY-20-162BK

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Pulleys, Serpentine, Performance Ratio, Narrow Mount, Billet Aluminum, Black Powdercoated, Chevrolet, LS, Kit

Part Number: MCH-19925-08

1.0 out of 5 stars ( 2 )

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Connecting Rod, Ultra Enforcer, Forged 4340 Steel, I-Beam, Cap Screw, ARP L19, Bushed, 6.125 in. Length, Chevy, Small Block, LS, Set of 8

Part Number: CPI-U17175

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Cylinder Head, GenX® 260, CNC Comp Port, Assembled, 70cc CNC Chamber, 370 Lb. Springs, Ti Retain, GM LS, Each

Part Number: TFS-3271T001-C01

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Pulley Kits, LS Swap, Serpentine, Alternator, Power Steering, A/C, GM Type 2, 130 Amp Alternator, Natural, Kit

Part Number: HLY-20-136

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Pulley Kits, LS Swap, Serpentine, Alternator, Power Steering, A/C, GM Type 2, 105 Amp Alternator, Kit

Part Number: HLY-20-162

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Sanden 7 A/C, Chevy, V8, Kit

Part Number: HLY-20-138

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, E-Street, Assembled, Aluminum, 64cc Chamber, 210cc Intake Runner, 75cc Exhaust Runner, Cathedral Port, Chevy, Small Block LS, Pair

Part Number: EDL-7763

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Connecting Rods, Ultra, H-beam, Forged 4330 Steel, 6.125 in. Length, Floating, Chevy, 5.7L LS, Set of 8

Part Number: CPI-U16300

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