ARP 12pt Timing Cover Bolt Kit Chevy LS1 - LS2 - 134-1502

The ARP 134-1502 12-Point Timing Cover Bolt Kit is a purpose-built fastener upgrade for GM LS-series engines, replacing the factory timing cover hardware with higher-quality bolts engineered for performance and engine-building applications. Whether you're refreshing a 5.7L LS1 Camaro, building a 6.0L truck engine, or assembling a dedicated race powerplant, this ARP timing cover bolt kit delivers the reliability and clean appearance that stock fasteners simply can't match.

Key Features & Benefits

• 12-Point Head Design: The 12-point (double-hex) head style allows a socket to engage from more angles and apply more precise torque — especially helpful in the tight confines around the front of an LS engine where clearance is limited.
• Choice of Finish: Available in polished stainless steel for a show-quality appearance or in chromoly black oxide for a stealthy, understated look — both finishes offer corrosion resistance and a professional finish compared to OEM hardware.
• ARP Quality Fasteners: ARP (Automotive Racing Products) is one of the most trusted names in performance fastener manufacturing, making this kit a go-to choice for engine builders who demand consistent, reliable clamping force at the timing cover.
• Broad LS-Family Compatibility: This kit is designed to cover a wide range of Gen III and Gen IV LS engines, making it a versatile choice for builders working across multiple platforms — from passenger cars to trucks and SUVs.
• Drop-In Replacement: Engineered as a direct replacement for the factory timing cover bolts, so no drilling, tapping, or modification is required — just install and torque to spec.
• Lightweight Package: At approximately 0.4 lbs., this bolt kit adds minimal weight while significantly upgrading the quality of your timing cover fasteners.

Specifications

• Part Number: ARP 134-1502
• UPC: 672036034856
• Head Style: 12-Point (double-hex)
• Finish Options: Polished stainless steel or chromoly black oxide
• Package Weight: 0.4 lbs.
• Package Dimensions: 6.0" L x 4.0" W x 0.625" H
• Application: Timing cover (front cover) fasteners for GM LS-series engines
• Fit Type: Vehicle Specific

Fitment

The ARP 134-1502 is designed for GM LS-series Gen III and Gen IV engines, with confirmed fitment across a broad range of displacements and engine codes. Based on available sourcing, this kit fits engines including:

• LS1 (5.7L) — found in 1997–2004 Camaro, Firebird, Corvette C5, and more
• LS2 (6.0L) — found in 2005–2007 Corvette C6, GTO, SSR, Trailblazer SS
• LS3 (6.2L)
• LS6 (5.7L) — found in 2001–2004 Corvette Z06 and Cadillac CTS-V
• LS7 (7.0L)
• LQ4, LM7, and other LS truck variants (4.8L, 5.3L, 6.0L, 6.2L)
• Model years spanning approximately 1997–2013 across supported engine families

This kit is listed as vehicle-specific, so if you are unsure whether your particular engine code or application is covered, contact ThreePiece.us before ordering — our team can verify fitment for your build.

Note: This kit is for the front/timing cover fasteners. ARP also offers a separate rear motor cover bolt kit (134-1504) and cam bolt kit (134-1003) for LS engines — those are sold separately.

What's in the Box

This kit includes the complete set of 12-point bolts needed to secure the timing cover on supported LS-series engines. ARP typically includes the appropriate fasteners for all cover bolt positions as a complete kit. No additional hardware purchases should be necessary for the timing cover application.

Why Buy from ThreePiece.us

At ThreePiece.us, we specialize in performance parts for enthusiasts and builders who need the right hardware the first time. Here's why LS builders choose us for ARP fastener kits:

• Free Shipping on Every Order: No minimum purchase required — your ARP 134-1502 ships free, no matter the order size.
• Affirm Financing Available: Spread the cost of your build over time with Affirm financing at checkout — ideal for larger engine builds where you're ordering multiple kits at once.
• Expert Fitment Help: Not sure if this kit covers your specific LS variant or swap configuration? Our team knows LS engines and can help confirm fitment before you buy.
• Curated Performance Inventory: We stock ARP fasteners alongside the other LS engine components you need, so you can source your entire build in fewer orders.

Frequently Asked Questions

Q: Does this kit fit LS truck engines like the LQ4, LM7, or 4.8L/5.3L/6.0L?
A: Yes. Based on sourcing information, the ARP 134-1502 is listed as fitting LS truck engine codes including the LQ4 and LM7, as well as the 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 7.0L displacements across the LS Gen III/IV family spanning approximately 1997–2013. If you have a specific engine code question, reach out and we'll confirm for your application.

Q: What finish does the ARP 134-1502 come in?
A: The ARP 134-1502 is available in both polished stainless steel and chromoly black oxide finishes. The stainless option offers a bright, show-quality look, while the black oxide finish provides a more subtle, blacked-out appearance. Check the listing or contact us to confirm which finish version you're ordering.

Q: Does this kit cover the rear motor cover as well as the front timing cover?
A: No — the ARP 134-1502 is specifically for the front timing cover on LS engines. ARP offers a separate rear motor cover bolt kit under part number 134-1504 if you also need to address the rear cover fasteners.

Q: Is installation straightforward for a home builder?
A: Yes. The ARP 134-1502 is a direct replacement for the OEM timing cover bolts, so no modifications to the engine block or cover are required. The 12-point head design makes it easier to achieve accurate torque with a standard 12-point socket, which is especially helpful in tighter areas around the front of the engine. Always follow ARP's recommended torque specifications for best results.