ARP

ARP Small-Block Chevy Cylinder Head Hex Bolt Kit 134-3601 — High-Strength High Performance Series, Vehicle-Specific Fit

High-performance automotive accessories made for confident daily results

$145.82

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Why customers choose NorthTrail Auto

ARP 134-3601 is a purpose-built cylinder head hex bolt kit engineered to reliably secure small-block Chevy heads under increased loads.

This ARP kit contains the specific fasteners needed for small-block Chevy cylinder heads, offering a high-strength replacement for OE bolts. Designed for performance applications where consistent clamping force matters, these hex head bolts are sold under ARP's High Performance Series and carry part number 134-3601. The kit ships as a vehicle-specific package and comes in packaging that reflects its 5.0 pound gross weight, ready for installation by experienced mechanics or builders.

What components are included in the 134-3601 cylinder head bolt kit?

The kit supplies the cylinder head hex bolts and any fitting washers or packaging intended for small-block Chevy heads. ARP's kits typically include the exact count and configuration required for a specific engine application, so you receive the correct fasteners for proper torque sequencing and clamping pattern.

  • ARP High Performance Series hex head bolts sized for SB Chevy heads
  • Correct quantity for one cylinder head set (vehicle-specific configuration)
  • Part number 134-3601 printed on packaging for identification
  • Packaged weight of approximately 5.0 pounds for shipment handling

How do these ARP bolts differ from original equipment fasteners?

Compared with common OE bolts, ARP High Performance Series fasteners use upgraded materials and tighter manufacturing tolerances aimed at improved strength and more consistent clamping. That makes them suitable for engines run at higher RPM, with increased cylinder pressures, or when head gasket sealing is critical. Installation still follows manufacturer torque procedures, but the bolt metallurgy and finish are performance-oriented.

  • Stronger alloy and precise thread geometry than many OE bolts
  • Manufactured to ARP's high-performance quality control standards
  • Designed to reduce stretch variation during tightening
  • Hex head form for standard wrench/socket installation

What should I know about fitment and part number identification?

Fitment is vehicle- and engine-specific, so confirm your small-block Chevy application matches ARP part number 134-3601 before ordering. The ARP part number on the packaging ensures you have the intended bolt set for your head design and bolt pattern. If installing on a modified block or aftermarket heads, verify stud versus bolt requirements and quantities.

  • Part number: 1343601 (also shown as 134-3601)
  • Fit type: Vehicle Specific – confirm compatibility
  • Designed for small-block Chevy cylinder head applications
  • Check head/stud layout when mixing aftermarket components

How should these bolts be installed for best results?

Follow ARP's published installation instructions and your engine builder's torque sequence to achieve accurate clamping and avoid bolt over-stretch. Use the recommended lubricants and a calibrated torque wrench or angle gauge to reach final specifications. If unsure, have a professional mechanic perform the installation to ensure proper head gasket sealing and engine reliability.

  • Use specified ARP or OEM torque values and sequence
  • Apply the recommended assembly lubricant for correct torque readings
  • Use a calibrated torque wrench and/or angle gauge
  • Replace bolts if they show visible stretch or damage after removal

Who is this for: ARP 134-3601 is aimed at engine builders, performance enthusiasts, and professional mechanics working on small-block Chevy engines who want a high-quality replacement for cylinder head fasteners. If you need dependable clamping for a rebuilt, modified, or high-output SBC and require a vehicle-specific hex head bolt kit, this ARP set provides the appropriate hardware with clear part identification and performance-focused manufacturing standards.

FAQ

Q: Is ARP 134-3601 compatible with all small-block Chevy heads?

A: It’s vehicle-specific—verify your head’s bolt pattern and ARP part 134-3601 compatibility before ordering.

Q: Can I reuse these bolts after removal?

A: ARP typically advises replacing head bolts if they show stretch or damage; follow ARP removal and inspection guidance.