ARP 4AG 16V Head Stud Kit 203-4203 — Fits 1985-1989 Toyota MR2

SKU: ARP203-4203
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About ARP ARP (Automotive Racing Products) makes the strongest fasteners ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About ARP

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Precision Fastening for the Toyota 4AG 16V

Unlock the full potential of your Toyota 4AG 16V engine with the ARP 203-4203 Head Stud Kit. Specifically designed for the iconic 1985-1989 Toyota MR2, these studs are essential for any engine build that prioritizes durability and consistent performance. Whether you are running a naturally aspirated setup or a supercharged configuration, these studs provide the stability your engine needs.

Key Technical Benefits

  • Constructed from high-grade 8740 chromoly steel for maximum durability.
  • Designed to withstand high RPMs and increased combustion pressures.
  • Superior thread engagement prevents head lifting under load.
  • Includes heat-treated nuts and washers for a complete installation.

The 4AG engine is legendary for its rev-happy nature, but stock head bolts can struggle when pushed beyond factory specifications. By switching to ARP, you gain peace of mind knowing your cylinder head is secured with the best hardware on the market. These studs are a direct fit for the MR2 GT and Super Charged models, making installation straightforward for the dedicated enthusiast. Experience the difference that professional-grade fasteners make in your engine's longevity. Trust the experts at GGCRACING for all your high-performance engine needs.

Vehicle Fitment

Years Make Model Trim
1985-1989 Toyota MR2 GT
1988-1989 Toyota MR2 Super Charged

Product Details

Product Description
Part Numbers
Sizing & Fit

About ARP

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Precision Fastening for the Toyota 4AG 16V

Unlock the full potential of your Toyota 4AG 16V engine with the ARP 203-4203 Head Stud Kit. Specifically designed for the iconic 1985-1989 Toyota MR2, these studs are essential for any engine build that prioritizes durability and consistent performance. Whether you are running a naturally aspirated setup or a supercharged configuration, these studs provide the stability your engine needs.

Key Technical Benefits

  • Constructed from high-grade 8740 chromoly steel for maximum durability.
  • Designed to withstand high RPMs and increased combustion pressures.
  • Superior thread engagement prevents head lifting under load.
  • Includes heat-treated nuts and washers for a complete installation.

The 4AG engine is legendary for its rev-happy nature, but stock head bolts can struggle when pushed beyond factory specifications. By switching to ARP, you gain peace of mind knowing your cylinder head is secured with the best hardware on the market. These studs are a direct fit for the MR2 GT and Super Charged models, making installation straightforward for the dedicated enthusiast. Experience the difference that professional-grade fasteners make in your engine's longevity. Trust the experts at GGCRACING for all your high-performance engine needs.

Vehicle Fitment

Years Make Model Trim
1985-1989 Toyota MR2 GT
1988-1989 Toyota MR2 Super Charged

Product Details

Product Description

About ARP

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Precision Fastening for the Toyota 4AG 16V

Unlock the full potential of your Toyota 4AG 16V engine with the ARP 203-4203 Head Stud Kit. Specifically designed for the iconic 1985-1989 Toyota MR2, these studs are essential for any engine build that prioritizes durability and consistent performance. Whether you are running a naturally aspirated setup or a supercharged configuration, these studs provide the stability your engine needs.

Key Technical Benefits

  • Constructed from high-grade 8740 chromoly steel for maximum durability.
  • Designed to withstand high RPMs and increased combustion pressures.
  • Superior thread engagement prevents head lifting under load.
  • Includes heat-treated nuts and washers for a complete installation.

The 4AG engine is legendary for its rev-happy nature, but stock head bolts can struggle when pushed beyond factory specifications. By switching to ARP, you gain peace of mind knowing your cylinder head is secured with the best hardware on the market. These studs are a direct fit for the MR2 GT and Super Charged models, making installation straightforward for the dedicated enthusiast. Experience the difference that professional-grade fasteners make in your engine's longevity. Trust the experts at GGCRACING for all your high-performance engine needs.

Vehicle Fitment

Years Make Model Trim
1985-1989 Toyota MR2 GT
1988-1989 Toyota MR2 Super Charged

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