430-2101 LS1/LS6/LS2 Stainless Steel 12-Point Intake Manifold Bolt Kit, ARP

Hawks Motorsports is pleased to offer our clients the following 430-2101 LS1/LS6/LS2 Stainless Steel 12-Point Intake Manifold Bolt Kit from ARP. This polished stainless steel bolt kit is designed for GM LS-series intake manifold applications and features 12-point heads, M6 x 1.0 threads, and a 4.480" underhead length. ARP identifies this kit for LS1, LS4, LS6, 4.8L, 5.3L, and 6.0L LS applications using the stock-style intake manifold configuration.

If you're dressing up an LS engine, this is one of those details that makes the whole top end look finished. The polished stainless hardware gives the intake a clean, performance-built look without the dull factory fasteners, while the 12-point heads add that unmistakable ARP motorsports touch. Whether you're freshening up an LS-powered F-body, putting together a swap, or finishing a show-quality engine bay, these are the kind of small details that separate a thrown-together engine from a properly sorted build.

The 430-2101 kit uses polished stainless steel fasteners with a wide underhead flange designed to distribute clamping load across the intake manifold mounting points. ARP also specifies precision-rolled threads to help provide consistent torque loading and reduce the potential for thread galling. The kit is supplied as a set of 10 bolts with companion washers.

KEY FEATURES

• ARP Part Number: 430-2101
• Brand: ARP
• Stainless steel construction
• Polished finish
• 12-point head design
• M6 x 1.0 thread size
• 4.480" underhead length
• Set of 10 bolts
• Companion washers included
• Wide underhead flange for load distribution
• Precision-rolled threads
• Designed for stock-style LS intake manifold applications
• Nominally rated at 180,000 psi tensile strength

PRODUCT SPECIFICATIONS

ARP's application guide identifies 430-2101 as the polished stainless-steel 12-point intake manifold bolt kit for LS1, LS4, LS6, 4.8L-RL4, 5.3L-LM7 and 6.0L-LQ4 applications using the 4.480" underhead length.

VEHICLE FITMENT / FITS THE FOLLOWING MODELS

GM LS-Series Engines

Verified ARP applications include:

• LS1 5.7L
• LS4
• LS6 5.7L
• 4.8L LS / RL4
• 5.3L LS / LM7
• 6.0L LS / LQ4

ARP's current product page categorizes 430-2101 under Chevrolet LS-series Gen III, Gen IV and Gen V applications, while its application guide specifically identifies the stock-intake application for LS1, LS4, LS6, RL4, LM7 and LQ4.

Common Vehicle Applications

Depending on the exact engine and intake configuration, these engines were used in vehicles including:

• Chevrolet Camaro
• Chevrolet Corvette
• Chevrolet Silverado
• Chevrolet Tahoe
• Chevrolet Suburban
• Chevrolet Express
• GMC Sierra
• GMC Yukon

Important: Vehicle-level fitment depends on the specific LS engine and intake manifold configuration. The bolt kit should be matched to the engine/intake combination rather than selected solely by vehicle year or model.

IMPORTANT APPLICATION NOTES AND EXCLUSIONS

• Designed around the stock-style LS intake manifold configuration.
• ARP's application guide specifies a 4.480" underhead length for 430-2101.
• The kit uses M6 x 1.0 threads.
• This is the polished stainless steel 12-point version.
• ARP also offers different intake manifold fasteners for black oxide and other intake configurations.
• Do not substitute this kit for ARP intake bolt kits designed for Edelbrock or GM Performance intake manifolds, as those applications use different underhead lengths.
• Verify the intake manifold configuration before ordering.
• This kit should not be assumed to fit every LS-based engine simply because it uses LS cylinder heads or an LS-style engine architecture.
• The current Hawks Motorsports listing identifies the application as LS1/LS6/LS2. ARP's application guide specifically identifies LS1 and LS6 but lists LS4, RL4, LM7 and LQ4 rather than LS2 for this particular stock-intake configuration.

INSTALLATION NOTES

• Follow the current ARP installation and torque recommendations.
• Verify that the intake manifold and fastener combination is correct before installation.
• Clean the intake manifold mounting surfaces and threaded holes before assembly.
• Use appropriate anti-seize on stainless-steel fasteners as recommended for stainless hardware.
• Tighten the fasteners using the correct sequence and torque specification for the intake manifold.
• Do not substitute torque specifications from a different ARP fastener or intake manifold application.
• Verify that each fastener has adequate thread engagement before final torque.
• Inspect for proper clearance around the intake manifold and surrounding components after installation.

FREQUENTLY ASKED QUESTIONS

What is ARP 430-2101?

ARP 430-2101 is a polished stainless-steel 12-point intake manifold bolt kit for GM LS-series engines.

How many bolts are included?

The kit contains 10 bolts with companion washers.

What size are the bolts?

The bolts use M6 x 1.0 threads and have a 4.480-inch underhead length.

What material are the bolts made from?

The 430-2101 fasteners are made from stainless steel and feature a polished finish.

What type of head do these bolts have?

The 430-2101 uses a 12-point head.

Does this kit fit an LS1?

Yes. ARP specifically lists LS1 among the applications for the 430-2101 stock-intake configuration.

Does this kit fit an LS6?

Yes. LS6 is specifically listed by ARP for the 430-2101 stock-intake application.

Does this kit fit an LS2?

The current Hawks Motorsports listing identifies LS2, but ARP's published application guide for the 4.480" stock-intake kit does not specifically name LS2. Verify the intake manifold and fastener length before ordering an LS2 application.

Is this the same as ARP 430-2001?

No. 430-2101 uses 12-point heads, while 430-2001 is the polished stainless-steel hex-head version.

Can this kit be used with an aftermarket intake manifold?

Not automatically. ARP identifies 430-2101 for the stock-style intake configuration. Other intake manifolds may require a different underhead length.