SKU: 203-4203 | UPC: 672036007607
ARP 1984-1989 Toyota Corolla AE86 MR2 AW11 Celica ST 4A-GE 16V Head Stud Kit
ARP 203-4203 Head Stud Kit upgrades Toyota 4A-GE 16V engines with dependable clamping force for high-performance builds. Designed for 1984-1987 Corolla AE86 GTS, 1985-1989 MR2 AW11 GT and Supercharged, plus 1986-1989 Celica ST models. Ensures even load distribution to prevent head gasket failures under boost or high RPM.
Key Features
- Genuine ARP Fasteners: Built from 8740 chromoly steel rated at 200,000 psi tensile strength for extreme duty cycles
- Stud Configuration: Minimizes main block thread damage while providing repeatable torque accuracy across heat cycles
- Precision-Rolled Threads: Maximizes thread engagement depth for secure hold without galling or stripping
- Matched Hardware Kit: Supplies washers and instructions for bolt-on replacement without custom machining
- Versatile Application: Handles naturally aspirated street use up to 20 psi boosted track setups reliably
Product Notes
- Inspect head and block surfaces flat to 0.002 inches before installation
- Apply ARP Ultra-Torque lubricant on threads and under washer faces only
- Fits standard 11mm stud diameter holes no modifications required
Installation Notes
- Professional installation recommended.
- Torque to ARP specs: 60 ft-lbs initial plus 1/4 turn yield method in sequence
- Compatible with OEM head bolts or ARP kit hardware exclusively
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1984-1987 | Toyota | Corolla | AE86 GTS |
| 1985-1989 | Toyota | MR2 | AW11 GT |
| 1985-1989 | Toyota | MR2 | AW11 Supercharged |
| 1986-1989 | Toyota | Celica | ST162 ST |
Why Choose ARP?
- Decades of motorsport victories in drag NHRA and endurance racing
- 8740 alloy construction resists fatigue in 1000+ hp applications
- Exact OEM replacement sizing with engineering for aftermarket heads
Frequently Asked Questions
- Q: Does this kit fit supercharged MR2 engines?
A: Yes ARP 203-4203 directly replaces OEM studs in 1988-1989 AW11 MR2 Supercharged 4A-GZE and NA 4A-GE variants - Q: What material are the studs made from?
A: High-strength 8740 chromoly steel with rolled threads for 200,000 psi rating and superior fatigue resistance - Q: What warranty applies and torque procedure?
A: Lifetime warranty against breakage. follow included guide for 3-stage torque plus recheck after 500 miles
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Secure ARP box 7 in. x 5 in. x 2 in.
- Weight: 1.80 lbs
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