ARP LS1 LS2 Hex Timing Cover Bolt Kit

SKU: 134-1501 | UPC: 672036034436

ARP LS1 LS2 Hex Timing Cover Bolt Kit for GM Corvette Camaro Firebird 1997-2007

ARP 134-1501 Hex Timing Cover Bolt Kit provides high-strength replacements for stock bolts on GM LS1 and LS2 engines in Corvettes Camaros Firebirds and trucks. These 8-bolt kits secure timing covers with consistent clamp load to resist leaks and vibration in street and race applications. Built from ARP2000 alloy for engines up to 2000 horsepower.

Key Features

• ARP2000 Alloy: 220000 psi tensile strength handles high boost and RPM without failure
• Precision-Rolled Threads: Increases thread strength by 30 percent over cut threads for secure hold
• Hex Head Design: 12mm hex fits standard sockets and wrenches for fast access in tight engine bays
• Complete 8-Bolt Set: M8 x 1.25 x 25mm bolts match OEM specs for plug-and-play replacement
• Black Oxide Finish: Resists corrosion from coolant oil and road salt exposure

Product Notes

• Direct fit for early GM LS timing covers with hex bolts LS1 LS2 LS6
• Made in USA with ARP limited lifetime warranty on fastener defects
• Lightweight design at 0.144 lbs reduces rotating assembly stress

Installation Notes

• Professional installation recommended.
• Apply ARP Ultra-Torque lube to threads and under bolt heads before assembly
• Torque to 22 ft-lbs in crisscross sequence recheck after heat cycle

This Part Fits

Year	Make	Model	Submodel
1997-2004	Chevrolet	Corvette	Base Z06
2005-2007	Chevrolet	Corvette	Base
1998-2002	Chevrolet	Camaro	Z28 SS
1998-2002	Pontiac	Firebird	Formula Trans Am
2004-2006	Pontiac	GTO	Base
1999-2007	Chevrolet	Silverado 1500	4.8L 5.3L 6.0L
1999-2007	GMC	Sierra 1500	4.8L 5.3L 6.0L
2002-2006	Chevrolet	Avalanche 1500	5.3L 8.1L

Why Choose ARP?

• Proven in NHRA IHRA and circle track racing for over 50 years
• Heat treated and rolled after treatment for fatigue resistance
• Application specific engineering matches exact OEM dimensions

Frequently Asked Questions

• Q: Will this kit fit LS3 or later engines?
  A: No this kit fits only LS1 LS2 LS6 timing covers with hex head bolts later LS3+ use 12-point bolts
• Q: What alloy and strength rating?
  A: Forged ARP2000 chrome moly alloy with 220000 psi tensile and 174000 psi yield strength
• Q: What torque specs and lube?
  A: 22 ft-lbs with ARP Ultra-Torque lube follow included sequence diagram re-torque after 100 miles

Shipping & Handling

• Method: UPS Ground
• Availability: In stock – ships same or next business day
• Packaging: ARP retail box 3.9 x 3.4 x 0.9 inches
• Weight: 0.144 lbs