This guide highlights select 102mm and 92mm LS intake manifolds with throttle body compatibility for cathedral port heads. Each option is evaluated for fitment with LS1/LS2/LS6 engines and similar cathedral-port configurations, including drive-by-cable throttle bodies. Across the picks, you’ll find aluminum constructions, multiple MAP port arrangements, and models designed to support strong throttle response and consistent airflow. The following five products balance performance, compatibility, and install practicality for street to light-track use.
| Product | Brand | Inlet Size |
|---|---|---|
| Htostar Racing 102mm Intake Manifold | Htostar Racing | 102mm |
| Htostar Racing 92mm Intake Manifold | Htostar Racing | 92mm |
| JEGS Fabricated LS1/LS2/LS6 Manifold | JEGS | 92mm/102mm |
| YESHMA 92mm LS Intake Manifold | YESHMA | 92mm |
| Endxedo 102mm LS Intake Manifold With Fuel Rails | Endxedo | 102mm |
Htostar Racing 102mm Cathedral Port Intake Manifold
The 102mm Htostar Racing intake manifold is designed for LS-based cathedral port engines with a cable-driven throttle body. Its 102mm inlet provides a larger throttle body interface for improved high-RPM airflow. The unit uses a 210mm tall aluminum construction with 1/8″ thick T6061 material and includes vacuum ports (1/4NPT & 1/8NPT) with plugs. A rear MAP port supports approximately 10 MAP. Compatible models include Corvette (97-07), SSR, TrailBlazer SS, CTS-V (04-07), Pontiac GTO (05-06), and Saab 9-7X Aero (08-09), among others. It is intended for drive-by-cable setups and does not support drive-by-wire systems.
Htostar Racing 92mm Cathedral Port Intake Manifold
This 92mm manifold from Htostar Racing is tailored for LS-based cathedral port heads with a drive-by-cable throttle body. It offers a slightly smaller inlet with a 210mm tall profile, built from aluminum, and includes vacuum ports (1/4NPT & 1/8NPT) with plugs. Compatible applications span Corvette (97-07), Z06 (01-04), SSR (05-06), TrailBlazer SS (06-09), CTS-V (04-07), Pontiac Firebird/Trans Am (98-02), GTO (05-06), and Saab 9-7X Aero (08-09). It suits enthusiasts seeking a balance of throttle response and airflow capacity in a cable-drive setup.
JEGS Black Fabricated LS Intake Manifold
The JEGS fabricated manifold fits GM LS1, LS2, and LS6 cathedral-port heads and accepts 92mm or 102mm throttle bodies. It includes a fuel rail kit, intake seals, hardware, and a LS3-style MAP sensor port along with vacuum port fittings. This design targets a straightforward upgrade path with a strong focus on compatibility and ease of installation, making it a practical choice for builders who want flexibility in throttle body sizing and a complete intake package for LS platforms.
YESHMA 92mm LS Intake Manifold
YESHMA’s 92mm LS intake manifold is built for cathedral-port LS engines and is compatible with a range of models, including Corvette (97-07), Firebird Trans Am (98-02), Z06 (01-04), CTS-V (04-07), SSR (05-06), and GTO (05-06). This unit uses a 3mm thick aluminum sheet, TIG-welded for stability, and emphasizes throttle response and structural integrity. It is designed for drive-by-cable throttle bodies and aims to deliver reliable performance under moderate to high intake demands.
Endxedo 102mm LS Intake Manifold With Fuel Rails
The Endxedo 102mm manifold includes fuel rails and throttle body compatibility for LS engines with cathedral-port heads. It is crafted from high-quality T6061 aluminum with a 3mm thickness, engineered to match the fit and function of the stock manifold on selected vehicles. Compatible applications mirror those of other cathedral-port LS builds, including Corvette and CTS-V variants across multiple model years. The assembly aims to optimize air distribution and throttle response, with emphasis on durability and proper MAP port integration.
Buying Guide
Key considerations when selecting an LS intake manifold with throttle body: engine compatibility, port configuration, and drive-by-cable versus drive-by-wire. Cataloged models here target cathedral-port LS engines and commonly used models like Corvette and CTS-V variants. Inlet diameter affects throttle body sizing and peak flow, with 92mm and 102mm options offering different performance characteristics. Aluminum construction is standard for light weight and heat dissipation, with 3mm or thicker walls boosting rigidity. MAP and vacuum port arrangements should match your planned sensors and vacuum lines. Fuel rail inclusion adds value for a ready-to-install package, especially for street-to-strip builds. Finally, verify fitment with your specific vehicle year and platform to ensure proper throttle cable routing and clearance from accessories.
Comparative considerations by use case:
- Street performance: 92mm or 102mm options with cable-driven TB provide robust torque and consistent intake flow without unusual lag.
- Track-focused builds: A larger 102mm inlet can support higher RPM power gains, particularly when paired with appropriate fuel and ignition tuning.
- Budget-friendly builds: Complete kits from brands like JEGS that include fuel rails and hardware simplify installation and reduce sourcing time.
- Durability and consistency: 3mm-thick aluminum manifolds and TIG-welded construction deliver stable performance under heat and vibration.
- Sensor compatibility: Check for LS3-style MAP ports and ensure your MAP sensor and vacuum fittings align with the manifold’s provisions.
For installers, the official product pages provide exact model compatibility lists; verify with your vehicle’s year, transmission (cable drive or otherwise), and existing intake system before purchasing. This ensures the selected manifold will fit without modifications and deliver the intended airflow and throttle response.