ARP GM LS Head Bolt Kit — 12-Point Bolts for 2004 & Later Engines, Complete Hardware Set

ARP Head Bolt Kit - 12pt GM LS 04 & Later is a complete set of head bolts designed to fit GM LS-series engines from 2004 onward.

This ARP kit supplies the specific 12-point head bolts required for cylinder head installation on GM LS engines produced in 2004 and later. Packaged as a single ready-to-install set, the kit arrives in compact retail dimensions and is intended for engine builders, mechanics, and hobbyists who need the correct fastening hardware for head installation or replacement.

What exactly is included and how is it packaged?

The kit is sold as one item package that contains the full complement of 12-point head bolts needed for the specified GM LS cylinder heads. It ships in a compact box with clear product labeling for easy identification when stored or transported.

• Item package dimensions: 8.62L x 4.21W x 2.24H inches
• Item package weight: 4.73 pounds
• Item package quantity: 1 complete bolt kit
• Product type listed as: BOLTS

How do I confirm compatibility with my LS engine?

This kit is specified for GM LS-series engines from model year 2004 and later. To verify fitment, compare the bolt head style and count noted here with the head bolt pattern in your engine shop manual or factory service reference.

• Designed for GM LS engines beginning in 2004 and later model years
• 12-point head bolt configuration matches factory style for those engines
• Consult engine documentation or parts diagram to cross-check part application

What should I expect when installing these head bolts?

These bolts are supplied as the specific 12-point fasteners used on GM LS heads; installation should follow the engine manufacturer’s torque sequence and values. Use proper tools and a calibrated torque wrench to achieve correct clamping and avoid damage.

• Install following OEM torque sequence and specified torque values
• Use a 12-point socket appropriate to the bolt head for proper engagement
• Replace bolts per engine rebuild best practices where required

How is this kit best used during an engine service or rebuild?

This kit serves as the hardware portion of a head installation or replacement job for compatible LS engines. Keep the bolts organized and follow stepwise tightening to ensure predictable sealing and assembly outcomes.

• Use in complete head removal and reinstallation procedures
• Keep bolts labeled if reusing any other fasteners during work
• Store the package in a dry area to preserve hardware condition until use

Who is this for? The ARP Head Bolt Kit - 12pt GM LS 04 & Later is aimed at professional mechanics, engine builders, and knowledgeable DIY enthusiasts performing cylinder head work on GM LS engines from 2004 onward. It is appropriate wherever the correct 12-point head bolts are required as part of a head service, gasket replacement, or full engine rebuild. If you need the specific bolt configuration and a single, clearly packaged kit, this product provides the exact fasteners listed for those applications.