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

Cylinder Heads, Mongoose Strip, Assembled, 73cc Chambers, 210cc Intake Ports, Chevy, LSX, Pair

Part Number: AFR-1690

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Estimated Ship Date: Jun 9, 2025 if ordered today

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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

Cylinder Heads, 260cc LS3 Mongoose, Aluminum, Bare, 69cc Chamber, 260cc Intake, Round Exhaust Port, Pedestal Mounting Style, Chevrolet, 6.2L, Pair

Part Number: AFR-1846

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Estimated Ship Date: Jun 9, 2025 if ordered today

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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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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, GenX® 220, Fast As Cast®, Assembled, 65cc CNC Chambers, GM LS2, Each

Part Number: TFS-30610002

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 11, 2025 if ordered today

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Cylinder Head Studs, 8740 Chromoly, 200,000 PSI Tensile Strength, Black Oxide, 12-Point Nuts, Undercut, Chevy, LS, Kit

Part Number: PQX-1034661

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Estimated Ship Date: Jun 20, 2025 if ordered today

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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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Head Combo, GenX® Top-End, 500 HP/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit

Part Number: TFS-K306-500-460

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Estimated Ship Date: Jul 30, 2025 if ordered today

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Head Bolt, 11mm, Hex, Cadillac, Chevy, Small Block Chevy, LS, Each

Part Number: NAL-19258707

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Head Combo, GenX® Top-End, 455 hp/426 ft.-lbs. Torque, Chevy, 5.3L, Kit

Part Number: TFS-K305-455-425

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Aug 5, 2025 if ordered today

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Cylinder Heads, Mongoose Strip, Assembled, 64cc Chambers, 245cc Intake Ports, Chevy, LSX, Pair

Part Number: AFR-1680

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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

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

Part Number: TFS-30600271

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Estimated Ship Date: Today

Cylinder Head Studs, 8740 Chromoly, 200,000 PSI Tensile Strength, Black Oxide, 12-Point Nuts, Undercut, Chevy, LS, Kit

Part Number: PQX-1034641

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Estimated Ship Date: Aug 18, 2025 if ordered today

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Engine Valve Lifter Guide, Stock Replace

Part Number: MEL-MLG101

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Engine Valve Lifter Guide, Stock Replace

Part Number: MEL-MLG102

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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: Jun 9, 2025 if ordered today

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Cylinder Head, GenX® 215, CNC Competition Ported, Assembled, 64cc CNC Chambers, GM LS1, Each

Part Number: TFS-30610001-C01

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Estimated Ship Date: Aug 11, 2025 if ordered today

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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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Estimated Ship Date: Today

Cylinder Head, GenX® 220, Fast As Cast®, Assembled, 64cc CNC Chambers, Titanium Retainers, GM LS1, Each

Part Number: TFS-3061T001

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Estimated Ship Date: Aug 11, 2025 if ordered today

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Cylinder Head, LS9, Assembled, CNC-Ported, 66.5cc Combustion Chamber, Aluminum, Natural Finish, 2.16 in. Intake Valve, Rectangular Intake Port, Each

Part Number: NAL-19433498

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Estimated Ship Date: Jul 8, 2025 if ordered today

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Cylinder Head, Black Label, 70cc Combustion Chamber, Assembled, 2.250 in. Intake Valve, 1.600 in. Exhaust Valve, Chevy, LS, Pair

Part Number: MML-CHLSX600378

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Estimated Ship Date: Jun 16, 2025 if ordered today

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Engine Valve Lifter Guide, Stock Replace

Part Number: MEL-MLG100

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Estimated Ship Date: Today

Head Combo, GenX® Top-End, Chevy, Small Block, LS2, Kit

Part Number: TFS-K306-550-470

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Jul 30, 2025 if ordered today

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