Cylinder Heads, Valve Seats, Head Bolts, Top End Kits & More

Cylinder Head, 315cc, Solid Roller, Aluminum, Assembled, 0.850 in. Lift, Chevrolet, Big Block Mark IV, Each

Part Number: FLK-315-5059

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Estimated Ship Date: Jul 20, 2026 if ordered today

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Cylinder Head, 360cc, Solid Roller, Aluminum, Assembled, 0.850 in. Lift, Chevrolet, Big Block Mark IV, Each

Part Number: FLK-360-5059

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Estimated Ship Date: Jul 20, 2026 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 345cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030630-3

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Jun 8, 2026 if ordered today

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Cylinder Head, 290cc, Solid Roller, Aluminum, Assembled, 0.850 in. Lift, Chevrolet, Big Block Mark IV, Each

Part Number: FLK-290-5059

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Estimated Ship Date: Jul 20, 2026 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 269cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030040-2

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 8, 2026 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 269cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030040-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 8, 2026 if ordered today

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Cylinder Heads, Aluminum, Assembled, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-2214

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Jun 1, 2026 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: Aug 26, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 185cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9188S

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 56cc Chamber, 210cc Intake Runner, Ford, Small Block, Pair

Part Number: PMX-9208T

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 200cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9198TA

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Estimated Ship Date: Jun 1, 2026 if ordered today

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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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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 215cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9216S

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Engine Cylinder Head Complete Reman 11-15 CHR/DOD/JEP/Ram 3.6L

Part Number: EGN-CH1132R

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Estimated Ship Date: May 27, 2026 if ordered today

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Cylinder Head, Maxx Series, 200cc Intake Runner, Aluminum, Assembled, 72cc Chamber, Pair

Part Number: PMX-92002AHR

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Engine Cylinder Head Complete Reman 85-90 CHR/DOD/PLY 5.2L

Part Number: EGN-CH1136R

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Estimated Ship Date: May 27, 2026 if ordered today

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Engine Cylinder Head Complete Reman 01-05 HON 1.7L

Part Number: EGN-CH1163R

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Estimated Ship Date: May 27, 2026 if ordered today

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Head Combo, GenX® Top-End, 485 hp/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit

Part Number: TFS-K306-485-460

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 215cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9219TA

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 200cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9199A

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 215cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-92198S

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 215cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9219TS

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 185cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9189TS

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Cylinder Head, 360cc Runner, Aluminum, 121cc Chamber, 2.250 in. Intake Valve, 1.880 in. Exhaust Valve, 0.675 in. Max Lift, Chevy, Each

Part Number: HPE-HPBBC360

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Estimated Ship Date: Jul 27, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 200cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9196A

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Estimated Ship Date: Jun 1, 2026 if ordered today

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