For Chevy Crank Harmonic Balancer Bolt replaces ARP 234-2503 for LS1 LS2 LS3 LS6

Crank Harmonic Balancer Bolt for Chevy

This high-strength crank harmonic balancer bolt replaces part number ARP 234-2503 to secure the balancer pulley to the crankshaft.

Overview

This crank harmonic balancer bolt is engineered to withstand the extreme torsional forces generated by high-performance engines. Designed as a reliable replacement, the crank harmonic balancer bolt ensures the pulley remains locked in place during high-RPM operation. It is an essential component for engine builders working on modern small-block engines.

Built For Performance

• Manufactured from high-tensile strength steel alloy for maximum durability.
• Features a corrosion-resistant black oxide finish to prevent thread rust.
• Includes a wide-flange head design to distribute clamping force evenly.
• Thread dimensions precision-machined to ensure a secure fit.

Fits These Machines

• for Chevy LS1 Engines
• for Chevy LS2 Engines
• for Chevy LS3 Engines
• for Chevy LS6 Engines

On-The-Job Use

• Securing the harmonic balancer during engine assembly or rebuilds.
• Replacing a single-use torque-to-yield factory bolt with a heavy-duty option.
• Ensuring balancer stability in high-performance street or track vehicles.

Specs At A Glance

Good To Know

Q: Can this bolt be reused multiple times? A: Unlike standard torque-to-yield bolts, this high-tensile strength bolt is designed to be reusable.

Q: What torque specification should be used? A: Always follow the engine manufacturer's or the bolt manufacturer's specific torque guidelines for safe installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.