CHEVROLET Chevy small block Gen III/IV (LS-based engines) Cylinder Heads

Cylinder Head, GenX® 260, CNC Competition Ported, Bare, 70cc CNC Chambers, 6-Bolt Mounting, GM LSX, Each

Part Number: TFS-3271B003-C01

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Engine Coolant Plug Fastener, Bolt, Internal Allen Head, 28mm x 1.25 Thread Size, Steel, Natural, Chevy, Small Block LS, Each

Part Number: NAL-12561663

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Cylinder Head, GenX® 255, Aluminum, Bare, 69cc Chamber, 255 cc Intake, GM, 6.2,.7.0L, LSX Block, Each

Part Number: TFS-3261B003-C01

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Cylinder Head Studs, Pro Series, 12-Point Head, Chromoly, Black Oxide, Chevy, Warhawk LS Aluminum Block, Kit

Part Number: ARP-134-4701

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Cylinder Head, GenX® 235, Competition Ported, Assembled, 70cc CNC Chambers, Ti Retainers, 6-Bolt, GM LSX, Each

Part Number: TFS-3061T003-C03

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Cylinder Head Bolts, Hex Head, Chromoly, Black Oxide, Flat Washers, Chevy, Small Block LS, Kit

Part Number: EDL-8595

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Valve Seats, Ductile Iron, Exhaust, 1.680 in. Outside Diameter, Chevy, Small Block, LS1, Set of 8

Part Number: TFS-30600274

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Engine Valve Lifter Guide, Stock Replace

Part Number: MEL-MLG102

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Valve Seats, Ductile Iron, Exhaust, 1.625 in. Outside Diameter, Chevy, Small Block, LS1, Set of 8

Part Number: TFS-30600272

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Engine Valve Lifter Guide, Stock Replace

Part Number: MEL-MLG100

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Engine Valve Lifter Guide, Stock Replace

Part Number: MEL-MLG101

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Valve Seat Inserts, Exhaust, Ductile Iron, 1.350 in. I.D., 1.650 in. O.D., Chevrolet, Ford, Each

Part Number: AFR-9069

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Cylinder Head Bolts, High Performance, Hex Head, World Products Motown Iron LS Blocks Only, Sold as Kit

Part Number: ARP-134-3611

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Engine Coolan Plugs, Chevy, Small Block LS Gen III and Gen IV, Small Block LT Gen V, Each

Part Number: ICB-551282

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Valve Seats, Ductile Iron, Intake, 2.125 Outside Diameter, Chevy, Small Block, LS1, Set of 8

Part Number: TFS-30600271

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Cylinder Head Studs, Pro Series, Block Thread Repair, Custom Age 625+ Alloy, 12-Point Nuts, Chevy, LS, Kit

Part Number: ARP-434-4348

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Valve Seat Inserts, Intake, Ductile Iron, 1.720 in. I.D., 2.132 in. O.D., Chevrolet, Ford, Each

Part Number: AFR-9059

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Cylinder Head Fasteners, Cylinder Head Bolt Kits, 12-point Head, Chromoly, Black, Flat Washers, Chevrolet, Small Block LS, Kit

Part Number: EAR-TBS-002ERL

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Estimated Ship Date: Oct 9, 2025 if ordered today

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Bolt, LS Engine Coolant Plug Fastener, 6mm x 1.0 Thread, Hex, Steel, Chevrolet, Pontiac, Each

Part Number: NAL-11588714

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Cylinder Head Studs, SCM-4140 Alloy, 12-Point Head, Chevy, 5.3, 5.7, 6.0L, Kit

Part Number: PQX-1036421

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Valve Guide, Bronze, Chevy, Small Block, LS1, Each

Part Number: TFS-30600251-1

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Valve Seat, Ductile Iron, Exhaust, 1.625 in. Outside Diameter, Chevy, Small Block, LS1, Each

Part Number: TFS-30600272-1

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Valve Seat, Ductile Iron, Exhaust, 1.680 in. Outside Diameter, Chevy, Small Block, LS1, Each

Part Number: TFS-30600274-1

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Head Bolt Kit

Part Number: PIO-851200

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Estimated Ship Date: Sep 9, 2025 if ordered today

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Valve Seat, Ductile Iron, Intake, 2.125 in. Outside Diameter, Chevy, Small Block, LS1, Each

Part Number: TFS-30600271-1

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Estimated Ship Date: Today