Nissan Micra K11 ARP Cylinder Head Stud Kit

Upgrade the cylinder head fastening on your Nissan Micra K11 CG engine with an ARP high-strength head stud conversion.

Ideal for performance engine builds, turbocharged and supercharged applications or engines that are regularly stripped and rebuilt, ARP studs provide a strong, reusable alternative to the factory-style cylinder head bolts.

Suitable for CG10DE, CG13DE and CGA3DE engines.

Key Features

• Suitable for Nissan Micra K11 CG Engines
• Fits CG10DE, CG13DE & CGA3DE
• Genuine ARP Fasteners
• High-Strength ARP 8740 Chrome Moly
• Nominal 200,000 PSI-Class Fastener Material
• Reusable when Correctly Installed & Remaining Serviceable
• Improved & More Consistent Clamping
• Hardened Parallel Washers
• High-Strength Nuts Included
• Ideal for Naturally Aspirated & Forced-Induction Builds
• Excellent Upgrade During an Engine Rebuild

Why Upgrade to Head Studs?

The cylinder head is subjected to enormous forces as combustion pressure attempts to separate it from the engine block.

Maintaining consistent clamping force between the cylinder head, head gasket and engine block is therefore particularly important as cylinder pressure increases.

This becomes increasingly relevant on engines running:

• Turbochargers
• Superchargers
• Increased Boost Pressure
• Higher Compression Ratios
• Performance Camshafts
• Increased RPM
• Motorsport Applications

ARP head studs provide a high-strength fastening solution designed to maintain accurate and consistent cylinder head clamping.

ARP 8740 Chrome Moly

The studs are manufactured from ARP 8740 chrome moly steel.

ARP's 8740 material is heat treated to provide extremely high tensile strength while maintaining the fatigue properties required for demanding automotive applications.

This makes it a popular choice for performance engine fasteners where substantially greater loads may be encountered than in a standard production engine.

Reusable Fasteners

One major advantage of an ARP stud conversion is serviceability.

Unlike torque-to-yield fasteners that are permanently stretched during their tightening procedure and should not be reused, ARP studs can be reused provided they have been:

• Correctly Installed
• Correctly Torqued
• Properly Maintained
• Inspected Before Reassembly
• Found Free from Damage, Corrosion or Thread Galling

This makes them particularly useful on competition and development engines where the cylinder head may be removed more regularly.

More Consistent Clamping

Studs can also provide more consistent cylinder head clamping compared with conventional head bolts.

The stud is installed into the engine block separately, with the cylinder head subsequently clamped using the nut and washer.

This arrangement allows the stud to provide accurate and repeatable clamping when installed according to the correct ARP procedure.

Hardened Parallel Washers

The kit includes hardened parallel washers.

These provide a consistent surface beneath the fastening nuts, helping distribute the clamping load and contribute towards repeatable torque application.

Ideal for Forced-Induction K11s

For a standard naturally aspirated K11, the factory cylinder head fastening arrangement is generally adequate when correctly installed.

However, once boost is introduced, cylinder pressures can increase considerably.

For this reason, an ARP head stud conversion is a sensible addition when building a:

• Turbocharged CG10
• Turbocharged CG13
• Turbocharged CGA3
• Supercharged CG Engine
• High-Compression Naturally Aspirated Engine
• Competition CG Engine

Head studs themselves do not increase horsepower. Their purpose is to provide a stronger and more consistent method of maintaining cylinder head clamping.

Compatibility

Suitable for:

Nissan Micra K11 CG10DE
Nissan Micra K11 CG13DE
Nissan Micra K11 CGA3DE

ARP Kit Reference

ARP Part Number: 151-4203

⚠️ IMPORTANT ARP APPLICATION NOTE

ARP does not officially catalogue part number 151-4203 as a Nissan Micra K11 application.

The original ARP catalogue application for this part number is a Ford Escort.

This kit is offered for the Nissan Micra K11 based on its suitability for the applicable CG engine installation rather than being an officially catalogued Nissan application from ARP.

Customers should therefore follow the installation specifications supplied for the K11/CG application rather than assuming that specifications published for the kit's original Ford application automatically apply to the Nissan engine.

What's Included?

• Complete ARP Cylinder Head Stud Set
• Matching High-Strength Nuts
• Hardened Parallel Washers

⚠️ INSTALLATION PROCEDURE IS CRITICAL

Cylinder head fasteners are critical engine components and should be installed by a suitably qualified engine builder or technician.

Correct installation includes ensuring:

• Block Threads are Clean & Serviceable
• Cylinder Head is Flat & Serviceable
• Block Deck is Clean & Serviceable
• Correct Head Gasket is Used
• Studs are Installed Correctly
• Correct Fastener Lubricant is Used
• Correct Tightening Sequence is Followed
• Correct Torque Procedure is Followed
• Stud, Nut & Washer Clearances are Checked

Do not simply use the factory head-bolt torque specification for ARP studs.

Fastener torque depends on the stud, nut, lubricant and installation procedure being used.

Head Gasket & Engine Condition

Installing ARP studs cannot compensate for:

• A Warped Cylinder Head
• Damaged Block Deck
• Incorrect Surface Finish
• Incorrect Head Gasket
• Detonation
• Excessive Cylinder Pressure
• Incorrect Ignition Timing
• Incorrect Fuelling
• Overheating
• Poor Engine Calibration

On forced-induction builds, correct ECU calibration remains essential.

Reuse & Inspection

ARP studs are reusable when correctly installed and remaining in serviceable condition.

Before reuse, each component should be thoroughly cleaned and inspected.

Any fastener showing evidence of damage, corrosion, thread galling or other deterioration should be replaced.

Manufacturer Warranty

This is a genuine ARP manufactured component and is supplied subject to ARP's applicable warranty terms and conditions.

Installation, torque procedure, inspection and reuse should be carried out in accordance with the appropriate technical requirements for the application.

ARP is a third-party manufacturer. GizFab Motorsport Developments is an independent retailer and is not affiliated with, sponsored by or endorsed by Automotive Racing Products, Inc. or Nissan Motor Co., Ltd. Nissan and ARP names are used solely for product application and identification purposes.