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Replacement spring and plunger assembly for oil pump pressure relief valve — increases pop‑off psi and restores proper bypass control. Bench‑test with PART #3801-0071.
Precision J-form cylinder stud kit with eight studs, moly assembly lubricant, and thread sealant. Stock replacement and reusable; manufactured by ARP® in the USA.
High-quality neck post bearing for reliable steering and long-lasting performance.
Reduces rocker arm end play and engine noise. Recommended side clearance: 0.0035" - 0.005". Helps limit wear on M8 rocker standoffs. Professional installation required. Made in the USA.
Precision-machined billet cover kit with lower tubes for easy access to adjustable pushrods; includes necessary hardware and seals. Requires OEM upper tubes, springs and washers.
Premium Feuling High Load Beehive® valve spring kit for performance engines. Allows up to 0.750" lift; includes 10° titanium retainers, chromoly spring seats and Viton® seals. Made in USA.
High Load Beehive® valve spring kit engineered for extreme fatigue life and high-lift camshafts; allows up to 0.750" lift.
High-temperature resistant seals with a spring-loaded wiper for low-friction oil control. Made in the USA.
Raises valve spring retainer to gain 0.050" installed height without machining the cylinder head spring set. Made in the USA.
- High-temperature resistant Viton® construction
- Spring-loaded wiper clears excess oil with minimal friction
- Made in the USA
High Load Beehive® spring kit for V-Twin performance. Direct bolt-in up to 0.565" lift. Recommended for +0.540" lift camshafts. Includes retainers, seats, shims, locks and Viton® seals.
Premium Beehive® valve spring kit for performance engines; supports up to 0.585" lift and includes springs, retainers, seats, seals and hardware.
High-quality machined valve locks that secure the valve retainer to the valve stem and prevent valve drop.