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ARP Chevrolet Small Block Harmonic Damper Bolt Kit

ARP
ARP134-2501
672036001728
Hardware Kits - Other
Out of stock
$ 28.85

SKU: 134-2501 | UPC: 672036001728

ARP Chevrolet Small Block Harmonic Damper Bolt Kit - Fits 1955+ SBC V8

Secure the harmonic damper on your Chevrolet small block V8 engine with ARP 134-2501 bolt kit. This single high-strength bolt fits 262 to 400 cubic inch small blocks from 1955 to current applications in cars trucks and performance builds. It delivers consistent clamp load at 250 ft-lbs torque to handle high horsepower and RPM without slippage.

Key Features

  • ARP2000 Alloy Steel: Forged material rated at 220,000 PSI tensile strength resists fatigue in boosted and high-rev engines
  • 12-Point Head Design: Provides secure wrench grip for accurate torquing and prevents rounding during service
  • Precision-Rolled Threads: Ensures full thread engagement and repeatable torque values for dependable retention
  • 3/8-24 x 3.400 Inch Size: Direct replacement for OEM bolt on SBC crankshaft nose with black oxide finish for rust protection
  • Application-Specific Engineering: Tested for Chevy small block harmonic balancers in street strip and circle track use

Product Notes

  • Inspect crankshaft threads for damage prior to install
  • Store in dry area to maintain thread integrity
  • Packed in ARP branded box with instructions

Installation Notes

  • Professional installation recommended.
  • Torque to 250 ft-lbs using ARP Ultra-Torque lubricant on threads and under head
  • Fits all traditional Gen I small block Chevy crankshafts 262-400 CID not for LS engines

This Part Fits

Year Make Model Submodel
1955-1982 Chevrolet Corvette All V8
1964-1972 Chevrolet Chevelle All V8
1967-2002 Chevrolet Camaro All V8
1960-1987 Chevrolet C10 Pickup All V8
1968-1982 Chevrolet Impala All V8
1955+ Chevrolet Small Block Swap 262-400 CID

Why Choose ARP?

  • Decades of use in NHRA IHRA and NASCAR racing
  • 8740 and 2000 series alloys outperform stock fasteners
  • CNC machining and heat treatment for exact tolerances

Frequently Asked Questions

  • Q: Will this fit Gen III/IV LS engines?
    A: No ARP 134-2501 is designed for traditional small block Chevy 262-400 CID only use 234-2501 for LS applications
  • Q: What is the bolt material and finish?
    A: ARP2000 alloy steel with black oxide coating for strength and corrosion resistance
  • Q: What torque spec and lube to use?
    A: 250 ft-lbs with ARP Ultra-Torque on threads and flange recheck after 100 miles or heat cycle

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: ARP box 4 x 3 x 1 inches
  • Weight: 0.15 lbs

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