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ARP

Bolt, Harmonic Balancer, ARP, BBC, 1/2" Square Drive Head

Part# : CH40093
Mfg#: 135-2503
Sold As: Each
Ship Size: Standard
$43.99
List Price: $48.95
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Vehicle Specific View fitment for 4 models
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Chevrolet Big-Block Damper Bolt (1/2-Inch Square Drive) by ARP®

190,000-psi 8740 chromoly bolt adds a forged 1/2-inch square drive for engine rotation.

For Big-Block Chevrolet, 1/2" Square Drive Head, this ARP® damper bolt combines 190,000-psi clamping strength with a forged 1/2-inch square-drive head. The square drive accepts a standard ratchet or breaker bar so the crankshaft can be rotated directly from the damper bolt.

• Product: Square-Drive Damper Bolt • Engine application: Big-Block Chevrolet, 1/2" Square Drive Head • Material: Heat-treated 8740 chromoly steel • Tensile strength: 190,000 psi • Drive: Forged 1/2-inch square drive • Finish: Black oxide

Notes

  • This item is not eligible for any further discounts or promotional pricing.
We aim to provide accurate and complete product information. If you notice anything incorrect, missing, or unclear, please let us know.
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1964–1977 Chevrolet Chevelle BB
1964–1987 Chevrolet El Camino 1964–1977: BB
1978–1987: BB
1978–1983 Chevrolet Malibu BB
1970–1988 Chevrolet Monte Carlo 1970–1977: BB
1970–1977: Big-Block
1978–1988: BB
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Bolt, Harmonic Balancer, ARP, BBC, 1/2
ARP Bolt, Harmonic Balancer, ARP, BBC, 1/2" Square Drive Head