Description
Ultimate Header Bolt Solution – ARP Chromoly Header Bolt Kits (134-1202)
Tired of Loose or Broken Header Bolts?
Factory header bolts often stretch, back out, or snap under heat cycles. ARP Chromoly Header Bolt Kits provide the ultimate solution for high-performance engines with superior clamping force and durability.
Why Choose ARP Chromoly Header Bolt Kits?
✅ Aerospace-Grade Chromoly Material – Resists heat expansion up to 1,400°F
✅ Ultra-Strength 8740 Alloy Steel – 180,000 PSI tensile strength (2x OEM)
✅ Precision-Rolled Threads – Eliminates galling during installation
✅ Includes 12-Point Stainless Nuts – Anti-seize coating prevents corrosion
Direct Fitment & Compatibility
- Part #134-1202 fits most Chevy LS, LT, and Ford Coyote applications
- Works with 1-5/8″ to 2″ primary tube headers
- Ideal for turbo, supercharged, or nitrous builds
“Swapped to ARP Chromoly Header Bolt Kits after blowing out 3 sets of cheap bolts – zero issues after 15K miles!”
– Jake T., Boosted Performance Builder
Technical Specifications
✔ Bolt Size: M8-1.25 x 40mm (12-point flange head)
✔ Included: (10) Bolts, (10) Locking Nuts, (10) Sealing Washers
✔ Finish: Black oxide (heat-resistant)
✔ Torque Spec: 18-22 lb-ft (use ARP moly lube)
Perfect for:
- Track/race engines (consistent clamping under vibration)
- High-Boost applications (no blowout under cylinder pressure)
- Off-road rigs (handles extreme heat cycling)
1999-2017 GM Trucks and vehicles with V8 LS Engines
Silverado Sierra Escalade Canyon Tahoe Suburban CTS
LS1, LS2, LS3, LS6 Engine Configurations (Various Models)
4.8L 5.3L 5.7L 6.0L 6.2L 7.0L
Model year applications:
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17
All trims and versions.
