Hawks Motorsports is pleased to offer our clients the following 234-4346 LSA 6.2L 12-Point Pro Series Head Stud Kit, ARP. This kit is specifically designed for GM LSA 6.2L supercharged engines and uses ARP2000 studs with 12-point nuts for the LSA cylinder-head application. ARP identifies 234-4346 specifically for Chevrolet LS-series LSA engines.

For the gearhead building an LSA that is getting more boost, more rpm, or simply deserves better hardware while the heads are off, this is the kind of upgrade worth doing while you're already deep in the engine. The ARP stud arrangement gives the builder purpose-built fastening hardware for the LSA cylinder heads, making it a smart addition when you're assembling a serious street, strip, or performance-oriented engine. It's the kind of engine hardware you want installed before the blower starts making serious pressure.

The 234-4346 kit includes 20 M11 head studs, 10 M8 studs, 30 parallel-ground washers, 30 12-point 8740 chrome-moly nuts, and ARP Ultra-Torque Fastener Assembly Lubricant. ARP's installation instructions identify this kit specifically for the Chevy LSA application and specify the M8 studs for designated corner locations.

KEY FEATURES

• Part Number: 234-4346
• Manufacturer: ARP
• Product Type: Cylinder head stud kit
• Application: GM LSA 6.2L supercharged engine
• Series: ARP Pro Series
• Stud Material: ARP2000
• Nominal Tensile Strength: 220,000 psi
• Stud Configuration: 20 M11 studs + 10 M8 studs
• Nut Style: 12-point
• Washers: 30 parallel-ground washers
• Nuts: 30 8740 chrome-moly 12-point nuts
• Lubricant: ARP Ultra-Torque Fastener Assembly Lubricant
• Finish: Black
• Designed specifically for the LSA cylinder-head application

PRODUCT SPECIFICATIONS / PRODUCT DETAILS

VEHICLE FITMENT / FITS THE FOLLOWING MODELS

Chevrolet Camaro ZL1 — 6.2L LSA

• 2012 Chevrolet Camaro ZL1
• 2013 Chevrolet Camaro ZL1
• 2014 Chevrolet Camaro ZL1
• 2015 Chevrolet Camaro ZL1

Cadillac CTS-V — 6.2L LSA

• 2009 Cadillac CTS-V
• 2010 Cadillac CTS-V
• 2011 Cadillac CTS-V
• 2012 Cadillac CTS-V
• 2013 Cadillac CTS-V
• 2014 Cadillac CTS-V
• 2015 Cadillac CTS-V

Important: Fitment is based on the LSA 6.2L engine application, not simply vehicle year or engine displacement. Verify the engine before ordering.

IMPORTANT APPLICATION NOTES AND EXCLUSIONS

• LSA 6.2L ONLY.
• This is not a universal LS 6.2L head stud kit.
• Do not use 234-4346 simply because an engine is an LS-family 6.2L.
• Verify that the engine is specifically an LSA before ordering.
• The kit uses both M11 and M8 studs for the LSA cylinder-head configuration.
• M8 studs are specified for designated locations in the ARP installation instructions.
• Do not substitute another LS head stud kit based solely on engine displacement.

INSTALLATION NOTES

• Inspect all hardware before installation.
• Clean the block threads thoroughly before assembly.
• Chase the block threads if necessary using the appropriate thread chasers.
• Clean the cylinder-head washer seating surfaces before assembly.
• Install the studs hand tight only. Do not torque the studs into the block.
• Use the hex broach in the end of the studs only for installation and removal.
• Apply ARP Ultra-Torque according to the current ARP installation instructions.
• Follow the manufacturer's recommended torque sequence.
• Follow the current ARP installation instructions before final assembly.

ARP installation torque procedure:

• M11 nuts: 30 ft-lbs
• M11 nuts: 60 ft-lbs
• M11 nuts: 90 ft-lbs
• M8 nuts: 28 ft-lbs

FREQUENTLY ASKED QUESTIONS

What engine does ARP 234-4346 fit?

ARP 234-4346 is designed specifically for the GM/Chevrolet LSA 6.2L supercharged engine.

Will 234-4346 fit a Camaro ZL1?

Yes, when the Camaro ZL1 is equipped with the LSA 6.2L engine. This application includes the 2012-2015 Camaro ZL1.

Will 234-4346 fit a Cadillac CTS-V?

Yes, for LSA-equipped CTS-V applications, including the 2009-2015 CTS-V. Verify the engine before ordering.

What material are the studs made from?

The studs use ARP2000 material with a nominal tensile strength of 220,000 psi.

How many studs are included?

The kit contains 20 M11 studs and 10 M8 studs, for a total of 30 studs.

Are washers and nuts included?

Yes. The kit includes 30 parallel-ground washers and 30 12-point 8740 chrome-moly nuts.

Is assembly lubricant included?

Yes. The kit includes ARP Ultra-Torque Fastener Assembly Lubricant.

Can these studs be used on other 6.2L LS engines?

Do not assume so. This part number is specifically identified for the LSA application. Other LS engines use different head stud kits.