The best automotive replacement engine rocker arm nuts and bolts you can buy

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The best automotive replacement engine rocker arm nuts and bolts you can buy

AI-generated summary · updated September 6, 2026 · verify details before purchase.

1 Best overall Dorman
Dorman 917-106 Rocker Arm Nut - M8-1.25

4.7/5 $28.01 Only 5 left

High-strength steel nut with serrated flange for secure grip, fits many GM and Chrysler engines. Known for durability and corrosion resistance.
- Corrosion-resistant coating
- Easy to install
- Good fitment for GM/Chrysler
- Limited to specific thread size
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2 Best value
ARPA 4-50350 Rocker Arm Bolt - M8 x 1.25 x 30mm

4.5/5 $8-$12

Grade 10.9 steel bolts with precise threading for reliable rocker arm retention. Affordable multipack with consistent quality.
- High-grade steel
- Cost-effective multipack
- Precise threading
- May need additional thread locker
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3 Best kit Melling
Melling BCH518 Rocker Arm Bolt Kit

4.6/5 $24.99

Includes all bolts and nuts for Chevy small block V8 engines. Heat-treated for strength and includes washers.
- Complete kit
- Heat-treated for strength
- Includes washers
- Only fits Chevy small block
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4 Best for Ford engines Fel-Pro
Fel-Pro ES 72727 Rocker Arm Bolt Set

4.4/5 $37.36

Specifically designed for Ford 302/351W engines. Zinc-plated bolts resist rust and meet OEM torque specs.
- OEM fitment for Ford
- Zinc-plated
- Meets torque specs
- Limited to Ford applications
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5 Best for high performance Stage 8
Stage 8 8890 Locking Rocker Arm Bolt Kit

4.8/5 $73.49 Only 5 left

Features patented locking design to prevent backing out under extreme vibration. Ideal for racing or high-RPM engines.
- Anti-backout locking system
- High-strength steel
- Excellent for high RPM
- Higher price
- Requires special tool for installation
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6 Best for M10 applications Dorman
Dorman 917-107 Rocker Arm Nut - M10-1.5

4.6/5 $28.01 Only 5 left

Serrated flange nut for M10-1.5 rocker studs. Common on many GM V8s and some Ford engines. Durable steel construction.
- Serrated for grip
- Wide fitment
- Affordable
- May not fit all brands
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7 Best premium choice ARP
ARP 134-1001 Rocker Arm Stud Kit

4.9/5 $75.98

Premium stud kit made from 8740 chromoly steel, heat-treated and precision rolled threads. Used in high-stress racing engines.
- Ultra-high strength
- Precision threads
- Long-term reliability
- Expensive
- Overkill for stock engines
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8 Best budget pick BTR Brian Tooley Racing
EngineTech AST311 Rocker Arm Bolt Set

4.3/5 $33.99

Affordable set of 16 bolts for Chevy small block. Grade 8 steel with black oxide finish. Good for basic replacements.
- Very affordable
- Grade 8 strength
- Black oxide finish
- No washers included
- Mixed reviews on durability
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Buying tips

When selecting rocker arm nuts and bolts, verify thread size and length match your engine's specifications. For high-performance or racing applications, consider ARP or Stage 8 locking hardware to prevent loosening. For standard replacements, Dorman and Fel-Pro offer reliable OEM-fit options. Always use thread locker on non-locking fasteners and follow torque specs.

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The best automotive replacement engine rocker arm nuts and bolts you can buy

Buying tips

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