Cylinder Head Stud Kit 260-4701 For Subaru Impreza WRX STi EJ20 EJ25 DOHC

Cylinder Head Stud Kit for Subaru

This cylinder head stud kit secures the cylinder head to the engine block under high combustion pressures, cross-referencing part number 260-4701.

Overview

This cylinder head stud kit prevents cylinder head lifting and head gasket failure in high-performance engines. The cylinder head stud kit distributes clamping force evenly to maintain a reliable combustion seal. It is designed for automotive engine builders, performance tuners, and motorsport mechanics.

Built For Performance

• Premium alloy steel construction provides exceptional tensile strength
• Precision-rolled threads ensure uniform torque and load distribution
• Heat-treated components resist stretching under high cylinder pressures
• Parallel ground washers allow for precise and even clamping force

Fits These Machines

• for Subaru Impreza WRX STi EJ20 DOHC
• for Subaru Impreza WRX STi EJ25 DOHC

On-The-Job Use

• Rebuilding performance engines with increased turbocharger boost pressure
• Preventing head gasket failure during high-stress racing events
• Torquing cylinder heads to exact specifications during engine assembly

Specs At A Glance

Good To Know

Q: Why are studs preferred over traditional head bolts? A: Studs allow for more precise torque loading and prevent threads in the engine block from stripping during assembly.

Q: Is thread lubricant recommended during installation? A: Yes, applying high-quality assembly lubricant to the threads ensures accurate torque readings and smooth installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.