Description
The ARP 203-4101 head stud kit is made for Toyota 1NZFE 1.5L engines.
Head studs clamp the cylinder head more evenly and more accurately than head bolts. A stud is threaded into the block once and stays put, so torque applied to the nut goes into stretching the stud and not into twisting it. That gives a more consistent clamp load across the head gasket, which matters most on boosted, high-compression, and race engines.
This kit uses ARP2000, an alloy rated at 220,000 psi tensile strength that delivers a higher clamp load than standard 8740 chrome moly studs.
ARP Head Stud Kit Features
- ARP2000 material
- Threads rolled after heat treatment for fatigue strength
- Centerless ground for concentricity
- Reusable, unlike torque-to-yield factory head bolts
- Sold as a kit
Technical Details
- UPC:
- 672036044152
- Unit of Measure:
- Sold as a Kit
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