Speedmaster Chevy GM LS3 Fabricated Ram Air 98mm 4 Bolt EFI Intake Manifold Polished

The Speedmaster LS3 Fabricated Ram Air Intake Manifold (MPN 1-148-051) is a 2-piece EFI intake manifold designed specifically for Chevy and GM LS3 engines. This manifold features a 98mm bore with 4-bolt mounting configuration and a polished finish for a professional appearance.

The fabricated ram air design enhances induction efficiency for improved engine performance, while the EFI-compatible construction integrates seamlessly with electronic fuel injection systems. The polished aluminum finish provides both aesthetic appeal and corrosion resistance, making it suitable for street, performance, and custom engine builds where LS3 compatibility is required.

Key Features & Benefits

• 2-Piece Fabricated Design: Split construction allows easier installation and optimal flow characteristics for LS3 engines.
• 98mm Bore with 4-Bolt Mount: Precision sizing ensures proper fitment on LS3 engine blocks with secure four-bolt attachment.
• EFI Compatible: Engineered for electronic fuel injection systems used in modern LS3 engine applications.
• Ram Air Configuration: Optimized induction design promotes volumetric efficiency and improved air delivery to cylinders.
• Polished Finish: High-gloss polished aluminum surface resists corrosion and delivers a refined engine bay appearance.

Specifications

Ideal Applications

• LS3 engine builds and performance upgrades
• Custom and street rod engine installations
• High-performance automotive builds requiring LS3 compatibility
• Engine swaps using Chevy LS3 powerplants