Speedmaster®
Chevy LS2 EFI 96mm 4 Bolt Ram Air Intake Manifold [Machine Polished]
![Speedmaster® 1-148-039 Chevy LS2 EFI 96mm 4 Bolt Ram Air Intake Manifold [Machine Polished]](https://www.speedmaster79.com/core/media/media.nl?id=13465759&c=3959037&h=5VUDPS1TQ_zjsHvoYnqaqbFCN6MkIclFrMnh2AYzUcMyFbS_&f=1-148-039_C.jpg&resizeid=225&resizeh=50&resizew=50)
Product Information
Overview
Constructed from durable aluminum, this intake manifold is built to withstand the demands of supercharged or turbocharged setups, unlike plastic alternatives. It serves as a direct replacement for stock intakes, making it a strong upgrade for performance builds.
Specs
| Brand: | Speedmaster |
| Part Number: | 1-148-039 |
| Part Type: | Intake Manifold, Fuel Injected |
| Engine Block Style: | Stock/OEM standard deck |
| Injection Style: | Multi-port |
| Basic Operating RPM Range: | 1,500-6,500 |
| Intake Section Included: | Complete |
| EGR: | No |
| Injectors Included: | No |
| Fuel Rails Included: | No |
| Aftermarket Fuel Rail Required: | Yes |
| Throttle Body Included: | No |
| Throttle Body Bore Diameter: | 96mm |
| Supplemental Bosses Cast-In: | No |
| Supplemental Bosses Machined: | No |
| Runners Included: | No |
| Runners Removable: | No |
| Base Material: | Aluminum |
| Base Finish: | Machine Polished |
| Throttle Body Adapter Material: | Aluminum |
| Throttle Body Adapter Finish: | Natural |
| Quantity: | Sold as a kit. |
| Notes: | Bosses cast-in for nitrous. 102mm adaptor tapers to 96mm for intake. Includes new gasket and bolts. |
Description
The Speedmaster intake manifold is designed for LSX-style engines, offering increased plenum volume for improved performance, especially on high-displacement LS1, LS2, and LS6 engines. Ideal for modified applications, it provides enhanced airflow where factory manifolds may fall short.
Warranty Information
12-Month Limited Worldwide Warranty
Prop 65 Warning
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Installation Guide
Our AI assistant generates a step-by-step guide for this product — covering installation, maintenance, and troubleshooting.
This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.