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

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

Part Number: AFR-9045-1

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Estimated Ship Date: Dec 4, 2025 if ordered today

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

Part Number: AFR-9046-1

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Estimated Ship Date: Dec 4, 2025 if ordered today

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Valve Seat, Ductile Iron, Exhaust, Ford, 4.6, 5.4L, Each

Part Number: TFS-51900271-1

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Estimated Ship Date: Monday 11/10/2025

0.372 Mng. Blank Guide

Part Number: KPM-20-20382

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Estimated Ship Date: Monday 11/10/2025

AFR SBC/SBF 11/32 Guide, 502 O.D.

Part Number: AFR-9049

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Estimated Ship Date: Dec 4, 2025 if ordered today

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+.010 AFR SBC Oversize Intake Seat

Part Number: AFR-9060OS

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Estimated Ship Date: Dec 4, 2025 if ordered today

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Valve Guide, Manganese Bronze, Intake, Harley-Davidson®, Each

Part Number: KPM-20-2050M

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Estimated Ship Date: Monday 11/10/2025

Valve Guide, Manganese Bronze, Intake, Harley-Davidson®, Each

Part Number: KPM-20-2020M

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Estimated Ship Date: Monday 11/10/2025

Valve Guide, Powersports, Bronze, Exhaust, Each

Part Number: KPM-30-30210

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Valve Guide, Manganese Bronze, + 0.001 in., Intake, Harley-Davidson®, Each

Part Number: KPM-20-2021M

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Estimated Ship Date: Monday 11/10/2025

Valve Guide, Manganese Bronze, + 0.010 in., Intake, Harley-Davidson®, Each

Part Number: KPM-20-2029M

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Estimated Ship Date: Monday 11/10/2025

Cylinder Head Bolt Sleeve, 0.500 in., 0.014 in. Wall Thickness, 12 in. Long, Each

Part Number: DRT-63300020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 22, 2025 if ordered today

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

Part Number: TFS-30400252-1

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Estimated Ship Date: Monday 11/10/2025

BILLET HEAD BOLT KIT

Part Number: JRC-322-4000

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Estimated Ship Date: Nov 19, 2025 if ordered today

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Sintered Valve Seat Insert

Part Number: DUR-30655

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Valve Seat, Powdered Metal, 9.50mm Thick, 23.00mm I.D., 31.00mm O.D., Each

Part Number: KPM-10-SC310

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Estimated Ship Date: Monday 11/10/2025

Valve Seats - K-10 Seat 30000 Series AOD 2.072

Part Number: DUR-32440

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ENGINE FASTENER, BTR HEAD BOLT - LS - LARGE

Part Number: BTC-S0367

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Valve Seats - K-10 Seat 30000 Series AOD 2.0866

Part Number: DUR-31195

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Cylinder Head Bolt Sleeve, 0.656 in., 0.014 in. Wall Thickness, 2.800 in. Long, Each

Part Number: DRT-63300050

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Cylinder Head, 2006-2010 Factory LBZ/LMM Duramax Cylinder Head (Driver Side)

Part Number: FLE-FPE6110003D

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Estimated Ship Date: Monday 11/10/2025

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CYL HEAD BOLT

Part Number: PIO-PG-480-8

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Estimated Ship Date: Monday 11/10/2025

Top End Engine Kit REPLACEMENT CYLINDER REPLACEMENT CYLINDER STANDARD BORE HEAD ONLY

Part Number: CLW-CH2001-K01

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Estimated Ship Date: Monday 11/10/2025

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Cylinder Head, 320cc, Solid Roller, Aluminum, Assembled, 0.850 in. Lift, Chevrolet, Big Block Mark IV, Each

Part Number: FLK-305-5059

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Estimated Ship Date: Monday 11/10/2025

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Cylinder Head Fasteners, Bolt Style, Internal Allen Head, Steel, Natural, for Infiniti, for Nissan, 2.5L, 5.6L, Set of 10

Part Number: BCK-016-1073

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Estimated Ship Date: Monday 11/10/2025