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

Cylinder Head Studs, Pro Series, 12-Point Nuts, Pontiac, Iron Duke, 2.5L, 1/2 in., Kit

Part Number: ARP-191-4201

Not Yet Reviewed

Estimated Ship Date: Today

Cylinder Head Studs, Extreme Duty, 12-Point Head, Mitsubishi, 2.0L, 4G63, 16-Valve, Kit

Part Number: SUM-910526

Not Yet Reviewed

Estimated Ship Date: Today

Engine Cylinder Head Bolt Set, 22-20 Ford E-350 Super Duty, E-450 Super Duty, F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, F-550 Super Duty,

Part Number: MAH-GS34082

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Special Order

SEAT 4140 BLK OXIDE

Part Number: RSC-PAC-S137-16

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Drop Ship
• Special Order

SEAT CHROME MOLY SPRING

Part Number: RSC-PAC-S154-16

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Drop Ship
• Special Order

SEAT CHROME MOLY SPRING

Part Number: RSC-PAC-S141-16

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Drop Ship
• Special Order

LS3 8mm Bronze Guide, .502 OD, Ea.

Part Number: AFR-9053-1

Not Yet Reviewed

Estimated Ship Date: Nov 20, 2025 if ordered today

• Drop Ship
• Special Order

Valve Guide, Powersports, Bronze, Exhaust, Each

Part Number: KPM-30-30620

Not Yet Reviewed

Estimated Ship Date: Today

Cylinder Head Fastener, Stud Style, Steel, Black, Jeep, Willys, Each

Part Number: OMX-1725804

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Special Order

Cylinder Head Fasteners, Replacement, Bolt Style, Hex Head, Steel, Natural, Ford, Merkur, Set of 16

Part Number: PIO-S-177

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Drop Ship
• Special Order

S&S Cycle 3/8-16 UNC x 6.070in Cylinder Base Stud

Part Number: SSY-31-2325-S

Not Yet Reviewed

Estimated Ship Date: Nov 13, 2025 if ordered today

• Drop Ship
• Special Order

Valve Seat, Powdered Metal, 11.40mm Thick, 44.45mm I.D., 54.96mm O.D., Each

Part Number: KPM-10-SC550

Not Yet Reviewed

Estimated Ship Date: Today

Valve Seat, Powdered Metal, 11.40mm Thick, 39.67mm I.D., 52.32mm O.D., Each

Part Number: KPM-10-SC523

Not Yet Reviewed

Estimated Ship Date: Today

Cylinder Head Fasteners, Stud Style, Hex Head, Steel, Natural, Kit Includes 15 Studs and 15 Nuts, Jeep, Willys, Kit

Part Number: OMX-1725806

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Special Order

Cylinder Head Bolts, Hex Head, Subaru, 2.5L, DOHC, 1-Head, Kit

Part Number: FEL-ES72905

Not Yet Reviewed

Estimated Ship Date: Today

• $50.00 Summit Bucks

Valve Seat, Ductile Iron, Exhaust, 1.657 in. Outside Diameter, Ford, Small Block, Each

Part Number: TFS-51700272-1

Not Yet Reviewed

Estimated Ship Date: Today

Cylinder Head Fasteners, Head Bolt Kits, Short Bolts Only, Hex Head, Steel, Natural, Chrysler, Dodge, Jeep, Mitsubishi, Ram, Set of 4

Part Number: MAH-GS33534

Not Yet Reviewed

Estimated Ship Date: Today

Valve Seat, Ductile Iron, Exhaust, 1.657 in. Outside Diameter, Ford, Small Block, Each

Part Number: TFS-51400272-1

Not Yet Reviewed

Estimated Ship Date: Today

Stock Replacement Engine Valve Lifter Guide

Part Number: MEL-MLG104

Not Yet Reviewed

Estimated Ship Date: Nov 17, 2025 if ordered today

• Drop Ship
• Special Order

Valve Seat, Powdered Metal, 11.00mm Thick, 32.00mm I.D., 42.00mm O.D., Each

Part Number: KPM-10-SC420

Not Yet Reviewed

Estimated Ship Date: Today

Cylinder Head Fasteners, OE Replacement, Bolt Style, 12-point Head, Steel, Natural, Chevrolet, GMC, 6.6L Diesel, Each

Part Number: ADO-11610681

Not Yet Reviewed

Estimated Ship Date: Today

Valve Guide, Intake, Bronze, Ford, 351C, 351M, 400, Each

Part Number: TFS-51600251-1

Not Yet Reviewed

Estimated Ship Date: Today

ENGINE FASTENER, BTR HEAD BOLT - LS - LARGE

Part Number: BTC-S0367

Not Yet Reviewed

Estimated Ship Date: Nov 7, 2025 if ordered today

• Drop Ship
• Special Order

exhaust seat,AFR BB Chevy 24° Beryllium Exhaust Seat 2.000 OD x 1.570 ID x .375

Part Number: AFR-9064B

Not Yet Reviewed

Estimated Ship Date: Today

Cylinder Head Bolts, Hex Head, Steel, Natural, Chrysler, Big Block B/RB, 440-1 Indy Head, 1-Head, Kit

Part Number: MAN-42198

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Drop Ship
• Special Order