SKU: 203-4703 | UPC: 672036036355
ARP Toyota 1.8L 4-Cylinder Head Stud Kit for 2000-2005 Celica GT, 2003-2008 Matrix Base, 2000-2005 MR2 Spyder
ARP 203-4703 head stud kit upgrades Toyota 1.8L 1ZZ-FE engines with studs that maintain even clamp load under boost or high RPM. Designed for 2000-2005 Celica GT, 2003-2008 Matrix Base, 2000-2005 MR2 Spyder and similar models, this kit prevents head gasket failures in modified setups. Built from high-strength ARP2000 alloy for repeated heat cycles without fatigue.
Key Features
- Genuine ARP Fasteners: High-tensile ARP2000 alloy studs rated at 220,000 psi yield strength for secure cylinder head retention
- Stud Design: Parallel threads reduce distortion and block damage while ensuring accurate torque values every time
- Precision Threads: Rolled before heat treatment for 1000% stronger threads and consistent preload in performance builds
- Matched Hardware: Includes washers, 12-point nuts, and lube packet for complete out-of-box assembly
- Versatile Use: Handles street daily drivers to 500+ whp track cars with proven ARP reliability
Product Notes
- Inspect head and block surfaces for flatness before install to ensure sealing
- Store in dry conditions to prevent corrosion on high-strength steel
- Packaged in protective foam-lined box to arrive ready to install
Installation Notes
- Professional installation recommended.
- Torque to ARP specs: 60 ft-lbs + 110 degrees for main studs using Ultra-Torque lube
- Compatible with OEM head gaskets and MLS upgrades. recheck after 500 miles
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000-2005 | Toyota | Celica | GT |
| 2003-2008 | Toyota | Matrix | Base |
| 2000-2005 | Toyota | MR2 Spyder | Base |
| 2003-2008 | Toyota | Corolla | S |
| 2003-2008 | Pontiac | Vibe | Base |
Why Choose ARP?
- Decades of racing wins prove durability in NHRA and endurance events
- Heat-treated alloy withstands 1500°F without loosening
- Engineered tolerances match OEM blocks for zero slop
Frequently Asked Questions
- Q: Will this kit fit a 2003 Toyota Matrix 1.8L Base with turbo?
A: Yes, ARP 203-4703 bolts directly to 1ZZ-FE blocks in all listed models, supporting up to 600 hp safely - Q: What material are the studs made from?
A: ARP2000 proprietary alloy with 260,000 psi tensile strength, black oxide finish for corrosion resistance - Q: Does it come with torque instructions?
A: Includes printed guide with sequence diagram, lube recommendations, and specs. one-year manufacturer warranty
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Foam-protected box, 2 x 6 x 8 inches
- Weight: 2.1 lbs
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