Product Description
ARP 234-3601 Pro Series ARP2000 LS Head Bolt Kit
High-Strength Cylinder Head Bolts for 1997–2003 LS Engines | ARP2000 Material
The ARP 234-3601 Pro Series Head Bolt Kit is designed for 1997–2003 LS-based engines requiring increased clamping force over factory fasteners. Manufactured from ARP’s premium ARP2000 material, these head bolts provide a significant strength upgrade over standard ARP 8740 bolts, making them ideal for high-performance, high-compression, and boosted LS builds. Precision-engineered for consistent preload and long-term durability, this kit delivers the reliable head gasket sealing required in demanding applications where factory bolts may fall short.
Key Features
- ARP2000 Material Construction: Offers higher tensile strength and improved clamping force compared to standard ARP 8740 bolts, ensuring superior head gasket sealing.
- Pro Series Performance: Engineered for consistent preload, reliability, and durability in high-performance and boosted LS engine applications.
- Precision-Manufactured: Designed to meet ARP’s strict quality standards for thread accuracy and material consistency to support long-term engine reliability.
- Direct Replacement Design: Installs in place of factory LS head bolts for 1997–2003 engines with no modification required.
- Performance Build Ready: Ideal for street, strip, or forced-induction builds where higher clamping loads are critical to prevent head gasket failure.
Bolt Configuration Notes
- 1997–2003 LS Blocks: Use (8) 155mm bolts, (2) 100mm bolts, and (5) 45mm bolts per cylinder head.
- 2004+ LS Blocks: Use (10) 100mm bolts and (5) 45mm bolts per cylinder head (this kit is intended for 2003-earlier engines).
Key Fitments
- Engine Compatibility: Fits 1997–2003 LS-based engines including 4.8L, 5.3L, 5.7L, and 6.0L configurations.
- Supported Engine Codes: Compatible with LS1, LS6, LM7, LQ4, LR4, L59, and LQ9 engines manufactured through 2003.
- Build Applications: Recommended for performance rebuilds, high-compression setups, and boosted LS applications requiring enhanced head bolt clamping force.
