ARP Carburetor Stud Kit

2011–2025 Subaru Forester / Subaru Impreza 2.0L Turbo / 2.5L Turbo

Part #: 300-2403

Overview

The ARP 1-inch Drilled Carburetor Spacer Stud Kit is an essential upgrade for automotive enthusiasts and performance builders seeking precise gasket alignment and secure carburetor mounting. Designed to assist in correctly positioning your carburetor on the intake manifold, this stud kit ensures a reliable and consistent seal, which is critical for optimal engine performance. Whether you're restoring a classic or building a high-performance setup, these studs provide the durability and precision needed for demanding applications.

Ideal for street, strip, or off-road vehicles, this kit helps support increased engine reliability and performance by maintaining proper gasket compression and preventing leaks. The ARP carburetor studs are engineered to withstand the rigors of high-performance environments, making them a trusted choice for both casual enthusiasts and professional tuners alike.

Key Features

The ARP Carburetor Stud Kit is built with high-quality materials and innovative design features to ensure durability and ease of installation. Key features include:

• Material and Finish: Made from chromoly steel, these studs are finished with a black oxide coating that provides excellent corrosion resistance and a sleek appearance.
• Precision Engineering: The studs feature a unique nut-starter radius that helps prevent cross-threading during installation, saving time and reducing frustration.
• Optimal Length: With a 2.700-inch length, these studs are designed to accommodate various carburetor and manifold configurations, ensuring proper engagement and secure mounting.
• Thread Compatibility: Available in 5/16 in.-18 and 5/16 in.-24 thread sizes, providing versatility for different applications and ensuring a proper fit for your specific setup.
• Complete Kit: Most kits include washers and hex nuts, simplifying installation and ensuring all necessary components are on hand for a professional-quality assembly.
• Enhanced Gasket Placement: The drilled design allows for precise gasket positioning, reducing the risk of leaks and improving overall engine efficiency.
• Versatile Use: Suitable for various carburetor types and manifold configurations, making it a flexible upgrade for multiple vehicle models.

Construction & Design

The ARP carburetor studs are crafted from high-strength chromoly steel, known for its excellent tensile strength and durability under high-stress conditions. The black oxide finish not only enhances corrosion resistance but also provides a professional appearance. The studs are drilled to facilitate accurate gasket placement, which is crucial for maintaining a proper seal between the carburetor and intake manifold. The design incorporates a nut-starter radius, a feature that helps prevent cross-threading during installation, ensuring a smooth and secure fit every time. These studs are engineered to withstand the vibrations and thermal cycles typical of high-performance engines, making them a reliable choice for demanding applications.

Installation & Fitment

The ARP Carburetor Stud Kit is designed for straightforward bolt-on installation. The studs thread directly into the intake manifold, providing a secure base for mounting your carburetor. Most applications do not require any cutting, drilling, or special modifications. The included washers and hex nuts facilitate a professional and tight fit, ensuring your carburetor remains securely mounted during spirited driving or off-road adventures. Always verify thread sizes and lengths to ensure compatibility with your specific vehicle and carburetor setup.

• Easy, bolt-on installation with standard hand tools
• No cutting, drilling, or tuning required
• Suitable for a wide range of carburetor and manifold configurations

What's Included

• Chromoly steel carburetor studs (length: 2.700 in.)
• Washers
• Hex nuts

Ideal For

• Performance enthusiasts building or restoring carbureted engines
• Street, strip, or off-road applications requiring reliable gasket sealing
• Engine builders seeking durable, high-quality mounting hardware