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

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, Black Label, 62cc Combustion Chamber, Bare, 2.040 in. Intake Valve, 1.570 in. Exhaust Valve, Chevy, LS, Each

Part Number: MML-CHLSX600184

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Estimated Ship Date: Dec 31, 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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Bolt, LS Engine Coolant Plug Fastener, 6mm x 1.0 Thread, Hex, Steel, Chevrolet, Pontiac, Each

Part Number: NAL-11588714

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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, Intake, 2.125 in. Outside Diameter, Chevy, Small Block, LS1, Each

Part Number: TFS-30600271-1

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

Part Number: TFS-30610002

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Cylinder Head, 250cc LS1/LS6, Aluminum, 61cc Chamber, 250cc Runner, 2.080 in. Intake Valve, 1.600 in. Exhaust Valve, 0.650 in. Max Lift, Chevy, Each

Part Number: HPE-HPLS1250

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Cylinder Head, CNC, Victor 11 Degree, Aluminum, Bare, 68cc Chamber, 263cc Intake Runner, 6-Bolt Flange, Chevy, LS3, Each

Part Number: EDL-77670

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Cylinder Head, 260cc LS3, CNC Ported, 6 Bolt, 70cc Chamber, 260cc Runner, 2.165 in. Intake , 1.600 in. Exhaust, 0.650 in. Max Lift, Chevy, Each

Part Number: HPE-HPLS3260

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Cylinder Head, 270cc LS3, CNC Ported, 6 Bolt, 72cc Chamber, 273cc Runner, 2.165 in. Intake, 1.600 in. Exhaust, 0.650 in. Max Lift, Chevy, Each

Part Number: HPE-HPLS3270

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Cylinder Head, LSX-SC, As-Cast, 70cc Combustion Chamber, Bare, Aluminum, Natural, Chevy, Each

Part Number: NAL-19417408

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Cylinder Heads, LSX, Bare, Aluminum, 70cc Chamber, 270cc Intake Runner, D-port Exhaust, Angle Plugs, Chevy, LSX, Each

Part Number: NAL-19419194

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Estimated Ship Date: Mar 2, 2026 if ordered today

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LT1 CAM and Head Kit

Part Number: NAL-19333525

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Cylinder Heads, Victor LS-R Pro-Port, Aluminum, Bare, 25cc Chamber, Hot Isostatic Pressing Processed for Optimum Strength, Chevrolet, 7.0L LS, Each

Part Number: EDL-770469

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Cylinder Head, LSX-LS7, Assembled, CNC-Ported, 70cc Combustion Chamber, Aluminum, Natural Finish, 2.20 in. Intake Valve, Rectangular Intake Port, Each

Part Number: NAL-19419197

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Cylinder Head, Pro 1 LS, Aluminum, Bare, 68cc Chamber, 280cc Intake Runner, Chevy, LSX, Each

Part Number: DRT-11030050

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1 LS, Aluminum, Assembled, 68cc Chamber, 280cc Intake Runner, Chevy, LSX, Beehive Springs

Part Number: DRT-11030152

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1 LS, Aluminum, Bare, 68cc Chamber, 280cc Intake Runner, Chevy, LSX, Dual Springs, Each

Part Number: DRT-11030153

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1 LS, Bare, Aluminum, Rectangle Port, Chevy, Each

Part Number: DRT-11061080

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1 LS, Bare, Aluminum, Rectangle Port, Jesel Rocker Arms, Chevrolet, Each

Part Number: DRT-11061080J

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1 LS, Assembled, Aluminum, Rectangle Port, Solid Roller, Chevrolet, Each

Part Number: DRT-11061184

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1 LS, Aluminum, Bare, 68cc Chamber, 250cc Intake Runner, Chevy, 5.7L LS1, 6.0L LS1, Each

Part Number: DRT-11071040

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1 LS, Aluminum, Assembled, 68cc Chamber, 250cc Intake Runner, Chevy, Each

Part Number: DRT-11071143

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Estimated Ship Date: Dec 29, 2025 if ordered today

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