ARP Main Stud Kit 204-5404 High-Strength Steel — Fits 1981-1991 Audi 5-Cylinder Engines

SKU: ARP204-5404
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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.

Engine Reliability with ARP Main Stud Kits

When building a high-performance Audi 5-cylinder engine, maintaining block integrity is paramount. The ARP 204-5404 Main Stud Kit is engineered to provide superior clamping force compared to standard factory bolts. By utilizing premium 8740 chromoly steel, these studs ensure that your main caps remain perfectly aligned under extreme load and high-RPM conditions, preventing main bearing walk and catastrophic engine failure.

Key Technical Features

  • Manufactured from high-tensile 8740 chromoly steel for maximum durability
  • Precision-rolled threads for optimal engagement and consistent torque
  • Includes hardened parallel-ground washers and high-strength nuts
  • Designed to handle increased horsepower and boost levels
  • Direct fitment for classic Audi 5-cylinder blocks from 1981 to 1991

Whether you are restoring a classic Audi 5000 or building a high-boost Quattro track machine, these studs are the industry standard for professional engine builders. The kit ensures that your crankshaft remains stable, allowing for smoother operation and extended bearing life. Each stud is heat-treated and stress-relieved to handle the rigors of performance driving. Trust your engine build to the best in the business at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1989 Audi 100 E
1989-1991 Audi 100 Base
1989-1991 Audi 100 Quattro Base
1989-1991 Audi 200 Base
1989-1991 Audi 200 Quattro Base
1991 Audi 200 Quattro 20v
1991 Audi 200 Quattro 20v Avant
1991 Audi 200 Quattro Avant
1986-1987 Audi 4000 Quattro CS
1981-1983 Audi 5000 Base
1981-1985 Audi 5000 S Turbo
1981-1988 Audi 5000 S
1985 Audi 5000 CS Turbo
1986-1988 Audi 5000 CS
1986-1988 Audi 5000 Quattro CS
1987-1988 Audi 5000 Quattro S
1991-1992 Audi 80 Base
1988-1992 Audi 80 Quattro Base
1988-1989 Audi 90 Quattro Base
1990-1991 Audi 90 Quattro 20v
1981-1985 Audi Coupe Base
1986-1987 Audi Coupe GT
1990-1991 Audi Coupe Quattro 20v
1983-1985 Audi Quattro Base

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.

Engine Reliability with ARP Main Stud Kits

When building a high-performance Audi 5-cylinder engine, maintaining block integrity is paramount. The ARP 204-5404 Main Stud Kit is engineered to provide superior clamping force compared to standard factory bolts. By utilizing premium 8740 chromoly steel, these studs ensure that your main caps remain perfectly aligned under extreme load and high-RPM conditions, preventing main bearing walk and catastrophic engine failure.

Key Technical Features

  • Manufactured from high-tensile 8740 chromoly steel for maximum durability
  • Precision-rolled threads for optimal engagement and consistent torque
  • Includes hardened parallel-ground washers and high-strength nuts
  • Designed to handle increased horsepower and boost levels
  • Direct fitment for classic Audi 5-cylinder blocks from 1981 to 1991

Whether you are restoring a classic Audi 5000 or building a high-boost Quattro track machine, these studs are the industry standard for professional engine builders. The kit ensures that your crankshaft remains stable, allowing for smoother operation and extended bearing life. Each stud is heat-treated and stress-relieved to handle the rigors of performance driving. Trust your engine build to the best in the business at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1989 Audi 100 E
1989-1991 Audi 100 Base
1989-1991 Audi 100 Quattro Base
1989-1991 Audi 200 Base
1989-1991 Audi 200 Quattro Base
1991 Audi 200 Quattro 20v
1991 Audi 200 Quattro 20v Avant
1991 Audi 200 Quattro Avant
1986-1987 Audi 4000 Quattro CS
1981-1983 Audi 5000 Base
1981-1985 Audi 5000 S Turbo
1981-1988 Audi 5000 S
1985 Audi 5000 CS Turbo
1986-1988 Audi 5000 CS
1986-1988 Audi 5000 Quattro CS
1987-1988 Audi 5000 Quattro S
1991-1992 Audi 80 Base
1988-1992 Audi 80 Quattro Base
1988-1989 Audi 90 Quattro Base
1990-1991 Audi 90 Quattro 20v
1981-1985 Audi Coupe Base
1986-1987 Audi Coupe GT
1990-1991 Audi Coupe Quattro 20v
1983-1985 Audi Quattro Base

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.

Engine Reliability with ARP Main Stud Kits

When building a high-performance Audi 5-cylinder engine, maintaining block integrity is paramount. The ARP 204-5404 Main Stud Kit is engineered to provide superior clamping force compared to standard factory bolts. By utilizing premium 8740 chromoly steel, these studs ensure that your main caps remain perfectly aligned under extreme load and high-RPM conditions, preventing main bearing walk and catastrophic engine failure.

Key Technical Features

  • Manufactured from high-tensile 8740 chromoly steel for maximum durability
  • Precision-rolled threads for optimal engagement and consistent torque
  • Includes hardened parallel-ground washers and high-strength nuts
  • Designed to handle increased horsepower and boost levels
  • Direct fitment for classic Audi 5-cylinder blocks from 1981 to 1991

Whether you are restoring a classic Audi 5000 or building a high-boost Quattro track machine, these studs are the industry standard for professional engine builders. The kit ensures that your crankshaft remains stable, allowing for smoother operation and extended bearing life. Each stud is heat-treated and stress-relieved to handle the rigors of performance driving. Trust your engine build to the best in the business at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1989 Audi 100 E
1989-1991 Audi 100 Base
1989-1991 Audi 100 Quattro Base
1989-1991 Audi 200 Base
1989-1991 Audi 200 Quattro Base
1991 Audi 200 Quattro 20v
1991 Audi 200 Quattro 20v Avant
1991 Audi 200 Quattro Avant
1986-1987 Audi 4000 Quattro CS
1981-1983 Audi 5000 Base
1981-1985 Audi 5000 S Turbo
1981-1988 Audi 5000 S
1985 Audi 5000 CS Turbo
1986-1988 Audi 5000 CS
1986-1988 Audi 5000 Quattro CS
1987-1988 Audi 5000 Quattro S
1991-1992 Audi 80 Base
1988-1992 Audi 80 Quattro Base
1988-1989 Audi 90 Quattro Base
1990-1991 Audi 90 Quattro 20v
1981-1985 Audi Coupe Base
1986-1987 Audi Coupe GT
1990-1991 Audi Coupe Quattro 20v
1983-1985 Audi Quattro Base

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