Brian Crower VALVES - 39.5mm INTAKE

Applicable to Nissan TB48 Engines

Part #: BC3252

Overview

The Brian Crower VALVES - 39.5mm INTAKE are high-performance aftermarket engine components designed specifically for Nissan TB48 engines. Crafted with precision and built from premium materials, these intake valves are engineered to enhance your engine's airflow, supporting increased horsepower and torque. Whether you're a performance enthusiast, a builder aiming for more power, or someone restoring a high-performance Nissan engine, these valves are an excellent upgrade.

Brian Crower has a long-standing reputation for manufacturing top-tier internal engine components that deliver both reliability and performance. These intake valves are ideal for those seeking to maximize engine efficiency, improve throttle response, and achieve better overall engine performance. Designed to withstand high RPMs and aggressive driving conditions, they are perfect for street, strip, or race applications where durability and performance matter most.

Key Features

Designed with performance in mind, these intake valves feature several technical advantages that set them apart from stock components:

• Manufactured from high-quality, heat-treated steel to withstand extreme engine conditions and high temperatures.
• 39.5mm diameter provides improved airflow into the combustion chamber, supporting higher power output.
• Precision-machined for perfect fitment and optimal sealing, ensuring maximum efficiency and durability.
• Engineered to support high RPM operation, making them suitable for high-performance builds and racing applications.
• Designed to work seamlessly with stock or aftermarket valve springs and retainers, simplifying installation.
• Built to meet or exceed OEM specifications for quality and reliability.
• Ideal for stroker kits, camshaft upgrades, and other internal modifications aimed at increasing engine performance.

Construction & Design

The Brian Crower intake valves are constructed from premium alloy steel, which provides excellent strength and heat resistance. The valves are CNC-machined to precise dimensions, ensuring a perfect seal and consistent performance. The 39.5mm intake diameter is carefully designed to improve volumetric efficiency, allowing your engine to breathe better and produce more power. The high-quality materials and manufacturing processes ensure long-lasting durability, even under demanding racing conditions.

The valves feature a lightweight design to reduce reciprocating mass, which can contribute to smoother engine operation and higher RPM capabilities. Their robust construction also helps prevent valve float and other issues associated with high-performance engine builds.

Installation & Fitment

Installing the Brian Crower intake valves requires basic engine disassembly and precision machining. It is recommended to have a professional machine shop or experienced technician perform the installation to ensure proper fitment and sealing. The valves are designed to be direct replacements for OEM intake valves, making them compatible with stock or aftermarket valve springs and retainers. No additional modifications are typically necessary, but a proper valve job and seat reconditioning are advised for optimal performance.

Ensure that your engine is properly cleaned and inspected before installation. Regular valve clearance adjustments and proper valve seat seating are essential for maintaining performance and longevity.

What's Included

• Set of high-performance intake valves (39.5mm diameter)
• Complete with OEM-style stems and heads
• Installation hardware not included; professional installation recommended

Ideal For

• Performance enthusiasts building high-horsepower Nissan TB48 engines
• Engine rebuilders seeking durable, high-quality intake valves
• Street and race applications where improved airflow and reliability are desired
• Anyone looking to maximize internal engine modifications for increased power