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

Cylinder Head Studs, 12-Point, 8740 Chromoly, Black, 2003 and Earlier, Chevy, LS, Gen III/IV, 1/2" - 13 threads at base, 1/2" - 20 top, Kit

Part Number: SUM-900507

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Cylinder Head, S/R, Cast Iron, Assembled, 58cc Chamber, 170cc Intake Runner, Chevy, 305, Each

Part Number: WRL-042650-1

5.0 out of 5 stars ( 2 )

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Cylinder Head, PowerPort® 270, Max Wedge, CNC Comp Port, 1.55" Springs, Ti Retain, Big Chrysler, Mopar, Each

Part Number: TFS-6161T783-C01

5.0 out of 5 stars ( 3 )

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

Part Number: BRO-SH545-11-32P

5.0 out of 5 stars ( 1 )

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Cylinder Head, E-Tec, Aluminum, Assembled, 64cc Chamber, 200cc Intake Runner, Chevy, 302, 327, 350, 400, Each

Part Number: EDL-60985

4.8 out of 5 stars ( 5 )

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Cylinder Heads, Assembled, Aluminum, 64cc Chamber, 185cc Intake, Angle Plug, Hyd, Flat, Chevy, SBC, Pair

Part Number: PMX-2168

3.56 out of 5 stars ( 9 )

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Cylinder Head Bolts,Extreme Duty, 6-point, 8740 Chromoly, Black Oxide, 7/16-14 in. Thread, Premium Quality, Chevy, Small Block, Kit

Part Number: SUM-910200-PRO

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Cylinder Head, Big Block Chevy Sniper X, Aluminum, Bare, 119cc Chamber, 375cc Intake, Intake Port Is Raised 0.300 in. From Stock, Chevy, 7.4L, Each

Part Number: PFH-174-X-C37-03

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Cylinder Head Stud, Chromoly, Extreme Duty, 12-Point Nuts, Chevy, 6.6L/400, Diesel, LB-7, LLY, Kit

Part Number: SUM-910521

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Valve Guide, Phosphorous Bronze, Chevy, Big Block, Each

Part Number: BRO-BH5451132PLI

5.0 out of 5 stars ( 1 )

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Cylinder Head, Marine-Duty Performer RPM 454, Assembled, Aluminum, Black Anodized, 118cc Chamber, 315cc Intake Runner, Chevy, Big Block, Each

Part Number: EDL-61555

5.0 out of 5 stars ( 2 )

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Cylinder Head, 290cc BBC, Aluminum, 113cc Chamber, 294cc Runner, 2.250 in. Intake Valve, 1.880 in. Exhaust Valve, 0.675 in. Max Lift, Chevy, Each

Part Number: HPE-HPBBC290

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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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Camshaft Tower Fasteners, Camshaft Tower Stud and Bolt Kits, 12-point, 8740 Chromoly, Black, M6 x 1.0 Thread, 3V Engines Only, Ford, 4.6L, 5.4L, Kit

Part Number: ARP-156-1001

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Cylinder Head, E-Tec, Aluminum, Assembled, 64cc Chamber, 170cc Intake Runner, Chevy, 302, 327, 350, 400, Each

Part Number: EDL-60975

4.17 out of 5 stars ( 6 )

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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: Jun 17, 2026 if ordered today

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Cylinder Head, PowerPort® 190, CNC Street Ported, Bare, Small Mopar, Each

Part Number: TFS-6141B001-C00

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Cylinder Head Fasteners, Cylinder Head Bolt Kits, 12-point Head, Chromoly, Black, Flat Washers, Chevrolet, Small Block, Kit

Part Number: EAR-TBS-003ERL

5.0 out of 5 stars ( 1 )

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

Part Number: TFS-92002

4.5 out of 5 stars ( 2 )

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Cylinder Head Fasteners, Extreme Duty, 12-point Head Style, Stud, Chromoly, Black Oxide, Duramax, Kit

Part Number: SUM-910524

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Cylinder Head, X2, Aluminum, Assembled, 64cc Chamber, 188cc Intake Runner, Ford, 289, 302, 351W, Each

Part Number: FMS-M-6049-X2

4.33 out of 5 stars ( 6 )

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

Part Number: BRO-SH5651132PL

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Cylinder Head Studs, Extreme Duty, 12-Point, Chromoly, Black Oxide, 5.9 Cummins 24 valve, Kit

Part Number: SUM-910512

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Cylinder Head, SBC, Aluminum, 66cc Chamber, 219cc Runner, 2.080 in. Intake Valve, 1.600 in. Exhaust Valve, 0.625 in. Max Lift, Chevy, Each

Part Number: HPE-HPSBC220

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Estimated Ship Date: Jun 17, 2026 if ordered today

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Camshaft Tower Bolts, Black Oxide, Chromoly, Kit

Part Number: ARP-156-1004

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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