1998 CHEVROLET Cylinder Heads

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

Part Number: WRL-030620M-2

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

Part Number: PMX-9218S

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Estimated Ship Date: Jun 8, 2026 if ordered today

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Cylinder Head, Pro 1, Aluminum, Bare, 121cc Chamber, 345cc Intake Runner, Chevy, Big Block, Each

Part Number: DRT-19300030

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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: May 27, 2026 if ordered today

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Valve Seats, Ductile Iron, Intake, 2.450 in. Outside Diameter, Chevy, Big Block, Each

Part Number: TFS-41400271

5.0 out of 5 stars ( 1 )

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Valve Seats, Ductile Iron, Intake, 2.450 in. Outside Diameter, Chevy, Big Block, Set of 8

Part Number: TFS-41400271-8

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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 Dowel Pin, 0.313 Outside Diameter, 0.565 in. Height, Each

Part Number: DUR-AD-927-P

5.0 out of 5 stars ( 2 )

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Valve Guide, Manganese Bronze, for Use with 11/32 in. Diameter Intake Valves Only, Chevy, Big Block, Each

Part Number: DRT-63121212

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Cylinder Heads, Cast Iron, Bare, 64cc Chamber, 185cc Intake Runner, Straight Plug, Chevy, Small Block, Pair

Part Number: PMX-2150

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 8, 2026 if ordered today

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Cylinder Head Bolt Kit, Hex Head, Chromoly, Black Oxide, for OE Cast Iron Heads, Chevrolet 396-454, Each

Part Number: TFS-92001

5.0 out of 5 stars ( 5 )

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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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Cylinder Head, Enforcer, Aluminum, Bare, 64cc Chamber, 195cc Intake, Angle Plug, Chevrolet, Small Block, Each

Part Number: AFR-1007

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Valve Guide, Intake, Powdered Metal, Twisted Wedge G2, Chevy, Small Block, Each

Part Number: TFS-31500252-1

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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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Cylinder Head Bolts, 8740 Chromoly, 200,000 PSI Tensile Strength, Black Oxide, 12-Point, 0.125 in. Longer, Chevy, Small Block, Kit

Part Number: PQX-1035001

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Estimated Ship Date: Jul 7, 2026 if ordered today

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

Part Number: TFS-30400252-1

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Cylinder Head Studs, Chromoly, Black Oxide, 12-Point Head, Chevy, Big Block, with Stock Heads, Set

Part Number: MIL-80124

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Jul 29, 2026 if ordered today

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Cylinder Head Studs, Chromoly, Black Oxide, 12-Point Head, Chevy, Small Block, Stock, Aftermarket Heads, Set

Part Number: MIL-80114

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jul 29, 2026 if ordered today

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Cylinder Head Studs, Chromoly, Black Oxide, Hex Head, Chevy, Big Block, with Stock Heads, Set

Part Number: MIL-80125

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Jul 29, 2026 if ordered today

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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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Engine Valve Guide 55-02 AMC/BUI/CAD/CHV/FRD/GMC/JEP/LIN/MER/OLD/PON

Part Number: EGN-GD9607

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Estimated Ship Date: May 27, 2026 if ordered today

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Valve Seat; Intake; 2.19 in. Valve

Part Number: EDL-9716

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Estimated Ship Date: May 27, 2026 if ordered today

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Valve Guide, Exhaust, Bronze, Chevy, Big Block, Set of 8

Part Number: AFR-9046-8

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Estimated Ship Date: Jun 29, 2026 if ordered today

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