ARP Small Block Chevy 12pt Head Bolt Kit

ARP Small Block Chevy 12-Point Head Bolt Kit

Upgrade the cylinder head hardware on your Small Block Chevrolet engine with the ARP 12-Point Head Bolt Kit. Designed for traditional Small Block Chevy cylinder head applications, this kit provides high-strength ARP fasteners for secure and consistent cylinder head clamping in street, performance, racing and engine rebuild applications.

ARP part number 134-3701 is officially identified as the Small Block Chevy 12-Point Head Bolt Kit. ARP categorizes this kit under Cylinder Head – Head and lists applications for traditional Chevrolet Small Block engines including the 283, 302, 305, 307, 327, 350 and 400. :contentReference[oaicite:0]{index=0}

Product Features:

• ARP High Performance Series Cylinder Head Bolt Kit
• Designed for Traditional Small Block Chevrolet Engines
• 12-Point Fastener Head Design
• 7/16″ Diameter Head Bolts
• 180,000 PSI Fastener Rating
• High-Strength ARP Fastener Construction
• Includes Washers for Proper Installation
• Designed for Secure and Consistent Cylinder Head Clamping
• Ideal for Street, Performance and Racing Engine Builds
• Suitable for Engine Rebuild and Restoration Applications

Specifications:

ARP Engine Applications:

• Chevrolet – Generic – Small Block
• Chevrolet – Small Block – 283
• Chevrolet – Small Block – 302
• Chevrolet – Small Block – 305
• Chevrolet – Small Block – 307
• Chevrolet – Small Block – 327
• Chevrolet – Small Block – 350
• Chevrolet – Small Block – 400
• Chevrolet – Small Block – Generic

Fitment Notes:

• Designed for traditional Small Block Chevrolet cylinder head applications.
• ARP officially lists 283, 302, 305, 307, 327, 350 and 400 Small Block Chevrolet engines.
• ARP also lists generic Chevrolet Small Block applications.
• Uses 7/16″ diameter High Performance Series cylinder head bolts rated at 180,000 PSI.
• Features 12-point fastener heads.
• If the cylinder head bolts protrude into a water jacket, ARP specifies using ARP Thread Sealer on the bolt threads.
• For blind bolt holes, ARP specifies lubricating the bolt threads with ARP Ultra-Torque Fastener Assembly Lubricant.
• ARP specifies lubricating the underside of the bolt heads and washers with ARP Ultra-Torque before installation.
• Following the manufacturer’s recommended torque sequence, tighten the bolts in three equal steps to a final torque of 70 ft-lbs with ARP Ultra-Torque.
• Verify the cylinder head and engine block configuration before installation.