RULLINE 4150 Dual Intake Fuel Line Kit 8 AN with Pressure Gauge

Description

Product Overview

The RULLINE 4150 Dual Intake Fuel Line Kit is engineered to meet the demanding requirements of high‑performance carbureted engines. Each kit includes a precision‑machined aluminum fuel line housing that offers a lightweight yet robust structure, reducing overall vehicle weight while providing excellent heat dissipation. Inside the housing, a stainless‑steel braided nylon fiber hose ensures superior resistance to abrasion, chemical exposure, and high‑temperature environments, extending service life far beyond standard rubber hoses.

Designed specifically for 4150 base carburetors, the kit supports both 6 AN and 8 AN inlet diameters, giving installers flexibility to match the exact flow characteristics of their engine. The optional pressure gauge version incorporates a calibrated gauge that allows real‑time monitoring of fuel pressure, enabling fine‑tuning for optimal combustion efficiency. All components are manufactured to tight tolerances, guaranteeing a leak‑free seal and consistent fuel delivery across a wide range of operating conditions.

Key specifications include a total length of 9.69 inches, a compact cross‑section of 3.35 × 2.24 inches, and a lightweight profile of just 0.634 ounces per kit. The part number US‑FL012 aligns with OEM standards, ensuring seamless integration with existing fuel system architectures. Whether you are restoring a classic muscle car, building a race‑ready street machine, or upgrading a daily driver, the RULLINE kit provides the reliability and performance that serious enthusiasts demand.

Usage

This fuel line kit is ideal for a variety of applications where precise fuel metering is critical. It excels in high‑revving performance engines, where even minor fluctuations in fuel pressure can affect power output and throttle response. The aluminum housing’s thermal conductivity helps maintain stable fuel temperature, reducing vapor lock risk during prolonged high‑temperature operation.

Installation is straightforward for both professional mechanics and DIY enthusiasts. The kit’s modular design allows it to be fitted to any 4150‑style carburetor, including popular models from Holley, Quick Fuel, and Aed. For street‑legal builds, the optional pressure gauge version provides an easy way to verify that the fuel system remains within manufacturer‑specified pressure ranges, ensuring compliance with emissions regulations while delivering smooth acceleration.

In motorsport environments, the durability of the stainless‑steel braided hose offers confidence that the line will withstand the rigors of track use, including vibration, shock loads, and exposure to fuel additives. The kit’s compatibility with both 6 AN and 8 AN configurations means it can be tailored to match the specific flow requirements of different engine displacements, from modest 2.0‑liter four‑cylinders to larger V8 powerplants.

Why Choose Us

Choosing the RULLINE 4150 Dual Intake Fuel Line Kit means selecting a product backed by rigorous quality control and a commitment to customer satisfaction. Each component undergoes a multi‑stage inspection process, including dimensional verification, pressure testing, and corrosion resistance assessment. Our manufacturing facilities employ CNC machining and automated braiding technology to achieve repeatable precision, minimizing the risk of defects that can lead to fuel leaks or performance loss.

We stand behind our products with a comprehensive warranty and responsive after‑sales support. Should any issue arise—whether related to material quality, shipping damage, or installation questions—our dedicated technical team is ready to provide guidance, replacement parts, or refunds as appropriate. This level of service reflects our confidence in the durability and performance of the kit, and it reinforces our reputation as a trusted supplier in the automotive aftermarket.

In addition to the core product, we offer optional accessories such as fuel pressure regulators, additional gauge mounts, and custom‑length hose extensions, allowing you to build a complete fuel delivery system that meets your exact specifications. Our commitment to continuous improvement means we regularly incorporate feedback from racers, tuners, and everyday drivers to refine the design and enhance reliability.

Key Features

• Lightweight aluminum housing reduces overall vehicle weight while providing excellent heat dissipation.
• Stainless‑steel braided nylon fiber hose offers superior wear resistance and long‑term durability.
• Available in 6 AN and 8 AN sizes to match a wide range of engine flow requirements.
• Optional integrated pressure gauge enables precise fuel pressure monitoring for tuning and compliance.
• Comprehensive after‑sales support and warranty ensure peace of mind and reliable performance.

FAQ

What carburetor models are compatible with this kit?

The kit is designed for any carburetor that uses a 4150 base, including popular Holley, Quick Fuel, and Aed models. It fits both 6 AN and 8 AN inlet configurations.

Do I need any special tools to install the fuel line?

No special tools are required beyond standard hand tools. The aluminum housing includes pre‑drilled mounting holes, and the hose clamps are compatible with common torque wrenches. Detailed installation instructions are provided with each kit.

How does the pressure gauge version improve engine performance?

The built‑in gauge allows you to monitor fuel pressure in real time, ensuring the system stays within the optimal range for your engine. Accurate pressure control helps achieve a more consistent air‑fuel mixture, improving throttle response and overall power output.

Is the kit suitable for street‑legal vehicles?

Yes. The kit meets automotive standards for fuel system components and can be used in street‑legal applications. The pressure gauge version helps you verify compliance with local emissions regulations by maintaining proper fuel pressure.

What warranty does RULLINE provide?

RULLINE offers a one‑year limited warranty covering defects in materials and workmanship. If you encounter any issues within the warranty period, contact our support team for a replacement or refund.