Best Cheap LS Intake Manifolds for Cathedral Port Heads
For enthusiasts seeking affordable LS engine upgrades, cathedral-port intake manifolds can improve airflow and throttle response without breaking the bank. The following five options offer a balance of compatible fitment, material quality, and inlet sizes (92mm or 102mm) to suit common LS builds. Each product is evaluated on compatibility, build, and practical benefits based on listed features. Use the buying guide at the end to compare choices and identify the best value for your setup.
| Product | Brand | Inlet Size | Notes |
|---|---|---|---|
| Htostar Racing For LS Intake Manifold (102mm) | Htostar Racing | 102mm | Cath Cathedral port; 4-bolt with cable drive throttle; aluminum |
| Htostar Racing For LS Intake Manifold (92mm) | Htostar Racing | 92mm | Cath Cathedral port; 210mm height; cable drive |
| PUZZLEDEER LS Cathedral Port 102mm Black | PUZZLEDEER | 102mm | Upper manifold with smooth inner wall; broad fitment |
| PUZZLEDEER LS Cathedral Port 92mm Black | PUZZLEDEER | 92mm | Smooth inner wall; wide fitment range |
| TEMSONE 102MM Sheet Metal Fabricated EFI | TEMSONE | 102mm | 3mm T6061 aluminum; MAP port; wide GM LS compatibility |
Htostar 102mm Cathedral Port LS Intake Manifold
The Htostar 102mm cathedral-port LS intake manifold is designed for LS-based engines with cathedral port heads and a cable-driven throttle body. It is compatible with LS1, LS2, and LS6 configurations and features a 102mm inlet, a tall 210mm height, and aluminum construction. Vacuum ports include 1/4NPT and 1/8NPT with plugs, plus a rear MAP port for sensing. This model is suitable for 4-bolt cable-drive setups and is tailored for multiple GM performance applications such as Corvette, TrailBlazer SS, and CTS variants.
Htostar 92mm Cathedral Port LS Intake Manifold
This 92mm variant mirrors the 102mm model with cathedral-port compatibility and a 210mm tall design. Built from aluminum with a 92mm inlet, it’s appropriate for LS1/LS2/LS6 engines and is compatible with a broad set of GM performance vehicles. It uses a cable-driven throttle body installation and includes ports for vacuum and MAP connections to support sensor integration.
PUZZLEDEER 102mm Cathedral Port LS Intake Manifold
PUZZLEDEER’s 102mm cathedral-port manifold focuses on smooth inner walls to minimize gas flow resistance and maximize intake efficiency. It is designed for Corvette, SS, Z06, and various GTO/CTS V-series models. The listing emphasizes even distribution of air to cylinders and cooling benefits to prevent overheating, making it a practical upgrade for street and track applications.
PUZZLEDEER 92mm LS Intake Manifold Black
This 92mm PUZZLEDEER manifold emphasizes a smooth inner surface to reduce flow resistance and improve intake efficiency. It supports multiple LS configurations, including Corvette and GTO applications, with a focus on reliable distribution of air to each cylinder and compatible MAP sensor integration for modern ECU setups.
TEMSONE 102MM Sheet Metal Fabricated EFI LS Manifold
TEMSONE offers a 102mm sheet-metal fabricated LS intake manifold with EFI compatibility, including fuel rails, throttle body, and TPS/IAC sensors. Constructed from T6061 aluminum (3mm thick), it features a rear MAP port and compatibility with numerous LS platform vehicles—from Corvette to TrailBlazer SS to CTS V-series—covering a wide range of cathedral-port engines. The robust fabrication supports both street and high-performance uses.
TEMSONE 92MM Sheet Metal Fabricated EFI LS Manifold
The 92mm TEMSONE option shares the same design philosophy as the 102mm version, offering strong build quality with a 3mm T6061 aluminum body. It includes MAP port integration at the rear and is compatible with a wide array of LS cathedral-port engines and associated GM platforms, making it suitable for enthusiasts seeking a smaller inlet size without sacrificing performance potential.
GSTP For LS Cathedral Port 92mm Intake Manifold
GSTP’s 92mm cathedral-port manifold is designed for LS engines across the 4.8L to 6.0L range, with a 92mm inlet and 210mm tall profile. It uses 1/8″ thick aluminum and includes multiple vacuum ports and a rear MAP port. The model also features upgraded fuel rail bracket compatibility, allowing injector alignment without spacers for several LS variants, which can simplify installation and maintenance.
YIUIY Cathedral Port 92mm LS Intake Manifold
The YIUIY 92mm cathedral-port LS manifold is made from 1/8″ thick T6061 aluminum and features TIG-welded fabrication. It is designed for LS1/LS2/LS6 heads, providing a compact, low-profile option with compatibility for C8 Gen III/IV platforms. The model suits applications that prioritize a balanced blend of weight, strength, and airflow efficiency.
Buying Guide: Key Purchase Considerations
When choosing a cheap LS intake manifold, consider the following factors to ensure value and compatibility:
- Inlet size: 92mm vs 102mm—larger inlets can improve top-end flow but may require supporting hardware and ECU tuning.
- Head compatibility: Cathedral-port LS1/LS2/LS6 designs are common; verify your engine family and port shape.
- Throttle drive: Cable-driven throttle bodies require specific mounting and linkage compatibility; ensure your setup matches.
- Material and fabrication: Aluminum manifolds offer light weight and good heat dissipation; sheet metal variants can be robust but may need finishing.
- MAP and vacuum ports: Availability of MAP ports and 1/4NPT or 1/8NPT vacuum ports affects sensor and vacuum line routing.
- Fuel rail compatibility: Some models include upgraded brackets or require spacers; check for fuel rail integration.
- Vehicle fitment: Confirm model-specific compatibility (Corvette, TrailBlazer SS, CTS-V, GTO, etc.) to avoid installation issues.
Cost versus performance varies by brand and feature set. TEMSONE and PUZZLEDEER products emphasize robust fabrication and sensor integration, while Htostar offers multiple inlet sizes for broader engine compatibility. For daily driving with occasional track use, a 92mm option with solid internal finish can provide noticeable gains without complicating installation. For higher-rev or performance builds, 102mm options paired with appropriate EFI or tuning can unlock additional airflow.
In summary, the five highlighted options cover a range of inlet sizes (92mm and 102mm), materials, and fitments to suit cathedral-port LS engines. Evaluate your current setup, desired horsepower band, and ECU capabilities to select the best value upgrade.