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

Cylinder Head Fasteners, 12-point, 4140 Steel, Black Oxide, Washers, Ford, 6.7L Diesel, Kit

Part Number: PQX-1040621

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Estimated Ship Date: Oct 7, 2025 if ordered today

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Cylinder Head, Sportsman II, Cast Iron, Bare, 72cc Chamber, 200cc Intake, Chevy, 302, 327, 350, 400, Each

Part Number: WRL-012150

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Cylinder Head, Sportsman II, Cast Iron, Assembled, 72cc Chamber, 200cc Intake, Chevy, 302, 327, 350, 400, Each

Part Number: WRL-012150-1

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Cylinder Head, Sportsman II, Cast Iron, Assembled, 72cc Chamber, 200cc Intake, Chevy, 302, 327, 350, 400, Each

Part Number: WRL-012150-2

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Cylinder Head, Sportsman II, Cast Iron, Assembled, 72cc Chamber, 200cc Intake, Designed for Use with Solid Roller Camshafts, Chevy, Small Block, Each

Part Number: WRL-012150-3

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Cylinder Head, Motown, Cast Iron, Assembled, 64cc Chamber, 220cc Intake, Chevy, 302, 327, 350, 400, Each

Part Number: WRL-014250-2

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Estimated Ship Date: Sep 25, 2025 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: Sep 25, 2025 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: Sep 25, 2025 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 269cc Intake, Exhaust Port Is Raised 0.600 in., Oval Intake Port, Chevy, Big Block, Each

Part Number: WRL-030040M-2

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Cylinder Head, Merlin, CNC Ported, Cast Iron, Bare, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030620CNC

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 345cc Intake, Exhaust Port Is Raised 0.600 in., Rectangular Intake Port, Chevy, Big Block

Part Number: WRL-030630-1

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Cylinder Head, S/R, Cast Iron, Bare, 76cc Chamber, 171cc Intake Runner, Chevy, Small Block, Each

Part Number: WRL-043600

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Tapered Washer, Type 2, 5/8 ID X 1 OD X 7/16 In. Height

Part Number: RNB-685-055

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Estimated Ship Date: Sep 15, 2025 if ordered today

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Hardware, LS Head Bolt Set

Part Number: AAF-ALL87005

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Hardware, LS Head Bolt Set

Part Number: AAF-ALL87006

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Bushing-Valve Guide

Part Number: PWD-555214

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Estimated Ship Date: Nov 21, 2025 if ordered today

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

Part Number: PQX-1031821

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Estimated Ship Date: Oct 7, 2025 if ordered today

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HEX HEAD BOLT, Camshaft Timing Gear Retaining, OLDS, 7/16" x 20 UNC x 1.22" UHL 0145512 gear drives only

Part Number: PQX-1028104

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Estimated Ship Date: Oct 7, 2025 if ordered today

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STUD KIT, CYLINDER HEAD, CHEV BB, 1966-2000, 6-point, 8740 Chromoly, 200,000psi, Black Oxide

Part Number: PQX-1045411

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Estimated Ship Date: Oct 7, 2025 if ordered today

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BOLT KIT, CYLINDER HEAD, GM CHEVY, LS1, LS6, 4.8, 5.3, 5.7, 6.0L, 2004-Up, SCM-4140 Alloy Steel, 6pt hex head, 200,000 PSI

Part Number: PQX-1034621

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Estimated Ship Date: Oct 7, 2025 if ordered today

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Cylinder Head Studs, 4140 Alloy, 12-Point Nuts, Parallel Ground Washers, 200,000 PSI Tensile Strength, Dodge, Cummins, 5.9L, L6, 24-Valve, Diesel, Kit

Part Number: PQX-1035902

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Estimated Ship Date: Oct 7, 2025 if ordered today

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HEX HEAD BOLT, Camshaft Timing Gear Retaining, SBF, 3/8" x 16 UNC x 1.0" UHL 01351nn gear drives only

Part Number: PQX-1028102

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Estimated Ship Date: Oct 7, 2025 if ordered today

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Cylinder Head Studs, SCM-4140 Alloy, 12-Point Heads, Chevrolet/GMC, 6.6L, L5P Diesel, Kit

Part Number: PQX-1040321

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Estimated Ship Date: Oct 7, 2025 if ordered today

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Cylinder Head Studs, SCM-4140 Alloy, 12-Point Heads, Ford, 6.4L Diesel, Kit

Part Number: PQX-1039121

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Estimated Ship Date: Oct 7, 2025 if ordered today

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Cylinder Head, Freedom, Aluminum, Assembled, 64 cc Chamber, 190 cc Intake Runner, Straight Plug, Chevy, Pair

Part Number: PMX-2181

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 1, 2025 if ordered today

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