Speedmaster Chevy LS1 LS6 EFI 85mm 3-Bolt Ram Air Intake Manifold – Machined Polished

The Speedmaster Chevy LS1 LS6 EFI 85mm 3-bolt ram air intake manifold is a precision-engineered component designed to optimize airflow and performance in LS-series engine builds. Featuring a machined polished finish and EFI compatibility, this manifold is engineered for direct bolt-on fitment on LS1 and LS6 platforms, providing the foundation for improved air intake delivery and combustion efficiency.

This intake manifold is ideal for engine enthusiasts building high-performance LS powerplants, including street applications, track builds, and custom engine swaps. The 85mm bore size and 3-bolt mounting configuration ensure reliable fitment across compatible LS1 and LS6 engine blocks. The polished machined surface not only enhances visual appeal but also supports smooth air passage through the manifold runners. Whether upgrading a factory intake or assembling a complete engine package, this Speedmaster manifold serves as a critical component for fuel-injected LS configurations.

Key Features & Benefits

• LS1 & LS6 Compatible: Direct fitment for Chevy LS1 and LS6 EFI engines with 3-bolt mounting configuration.
• 85mm Bore Size: Precision 85mm intake port diameter optimized for airflow and fuel distribution.
• Machined Polished Finish: Premium polished surface for improved aesthetics and smooth air passage.
• EFI Ready: Designed specifically for electronic fuel injection systems on LS-series engines.
• Performance-Focused Design: Engineered to maximize air intake efficiency for street and performance applications.

Specifications

Ideal Applications

• LS1 and LS6 engine street performance builds
• Custom LS engine swaps and restorations
• High-performance fuel-injected engine packages
• Track and racing engine builds
• Crate engine installations