Speedmaster Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold - Polished 1-147-023

The Speedmaster Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold (MPN 1-147-023) is a high-performance intake manifold designed for big-block Chevrolet 454 engines featuring rectangular port configuration. Constructed from aluminum with a polished finish, this hi-rise design maximizes air intake velocity and promotes efficient fuel-air mixture distribution for enhanced engine performance and responsiveness.

This intake manifold is engineered for compatibility with Chevy BBC 454 engines using rectangular port cylinder heads. The polished aluminum construction offers both durability and a refined aesthetic appeal, making it suitable for street performance builds, restorations, and racing applications where intake efficiency and visual presentation matter. The hi-rise profile is ideal for builders seeking improved induction flow characteristics and increased horsepower potential.

Key Features & Benefits

• BBC 454 Compatible: Engineered specifically for Chevy big-block 454 engines with rectangular port heads.
• Hi-Rise Design: Elevated design promotes superior air velocity and efficient mixture distribution.
• Polished Aluminum: Lightweight aluminum construction with polished finish for performance and visual appeal.
• Rectangular Port: Matched to rect port cylinder head configuration for optimal flow.

Specifications

Ideal Applications

• Street performance engine builds
• Big-block Chevy restorations
• Racing and competition engines
• High-horsepower custom builds