Answering the question for high-performance LS2 builds, these selected supercharger-related parts enable power upgrades and engine swaps. This guide highlights parts best for LS2-equipped street cars, track cars, and swap projects, with clear guidance on fitment and limitations. Each product is chosen for compatibility with cathedral-port LS heads when paired with appropriate manifolds or adapters, and for their potential to maintain stability under boost. The following table summarizes the highlighted items for quick comparison.
| Product | Key Benefit | Best For |
|---|---|---|
| Haytalras Cathedral Port Adapter Plate (Black) | Cathedral-to-rectangular port conversion, 1/2″ aluminum | LS engine swaps and high-boost setups |
| Haytalras Cathedral Port Adapter Plate (Silver) | Same conversion, robust material, compatible with LS3/LSA manifolds | High-rpm racing and performance upgrades |
| WHIPPLE 4.5L LS Adapter (Black) | Replaces oval inlet for round throttle bodies | Whipple 110mm+ throttle-body configurations |
| Speedmaster PCE460.1008 Kit | Drive kit for 6-71/8-71 Roots-style superchargers | Classic Roots-style forced induction |
| Edelbrock E-Force Supercharger Kit | High-output kit for Corvette LS2 base model | Direct LS2 builds aiming for substantial power |
Haytalras Cathedral Port To Rectangular Port Adapter Plate — Black
Reference features indicate this is a solid 1/2 inch aluminum adapter that enables cathedral-port LS1/LS2/LS6 heads to mate with LS3/LSA ZL1 rectangular-port manifolds and superchargers. Designed for LS engine swaps and performance upgrades, it emphasizes stability under high boost and high RPM. The design aims to minimize airflow disruption and preserve engine power output.
- Best for LS engine swaps requiring cathedral-to-rectangular compatibility.
- Better for high-boost applications due to thick aluminum construction.
- Caution: Verify clearance with your chosen supercharger and manifold combo.
Haytalras Cathedral Port To Rectangular Port Adapter Plate — Silver
This variation mirrors the black version with identical construction and intent: convert cathedral-port LS heads to fit a rectangular-port intake and supercharger. The silver finish provides a visual alternative while maintaining rigidity and stable performance under boost. Best for enthusiasts prioritizing a color match with their engine bay or manifold hardware.
- Best for visually matching metal finishes with other components.
- Better for high-boost setups where durability is essential.
- Caution: Ensure compatibility with your specific manifold and throttle-body pairing.
WHIPPLE 4.5 Liter Billet LS2/LS3/LS7 Adapter — Black
This adapter replaces the stock oval inlet on a Whipple 4.5L LS supercharger to allow a 110mm or smaller round throttle body. CNC billet aluminum construction indicates precision fitment and durable performance. It is best for builds using a Whipple supercharger and round throttle-body configuration.
- Best for Whipple supercharger users needing round throttle-body compatibility.
- Better when you want straightforward bolt-in complexity without custom fabrication.
- Caution: Confirm throttle-body diameter compatibility with your exact Whipple model.
Speedmaster PCE460.1008 Kit
The kit is described as a track-proven drive set designed for Roots-style superchargers, intended to deliver a distinctive blend of vintage engineering and modern performance ideals. It emphasizes reliability for road, race, and recreational use, positioning it as a practical option for LS builds using traditional forced-induction setups.
- Best for retro-inspired Roots-style boosted builds.
- Better for enthusiasts seeking proven track-use reliability.
- Caution: Verify that your blower model matches the kit specifications and mounting points.
EFI Intake Manifold With Fuel Rails — Cat Port, LS1/LS2/LS6
This manifold is designed for cathedral-port GM Gen III/IV LS engines and supports LS1/LS2/LS6 configurations. It features a 4150-design for high-rpm power, with a broad torque curve. It is described as suitable for use with forced induction (turbo, supercharger) and NOS, making it a versatile foundation for power-adders.
- Best for cathedral-port LS builds requiring a robust manifold for power adders.
- Better for broad torque delivery across a wide RPM range.
- Caution: Check cylinder head type and compatibility with your forced-induction setup.
Edelbrock 1594 E-Force Supercharger Assembly Kit
This E-Force kit for Corvette LS2 base models is positioned for significant output potential with a stated maximum horsepower and torque in its product notes. It includes a defined boost target and a compact packaging approach designed for straightforward installation on applicable LS2 engines.
- Best for Corvette-focused LS2 builds prioritizing high output.
- Better for those seeking an integrated, brand-backed forced-induction solution.
- Caution: Specific model compatibility and installation requirements should be confirmed before purchase.
Buying Guide: Key Considerations For LS2 Supercharger Upgrades
What should you consider when selecting a supercharger-related part for LS2 builds?
- Compatibility: Confirm cathedral-port vs rectangular-port heads, and ensure your manifold or adapter matches your head design.
- Intended use: Street, track, or swap projects may dictate the best-fit kit—cost-effective simplicity vs. maximum power potential.
- Boost handling: High-boost applications require rigid materials and careful fitment to maintain engine reliability.
- Throttle-body compatibility: Some adapters require specific throttle-body diameters; verify before ordering.
- Manufacturing quality: Billet aluminum components generally offer better precision and durability under boost.
Frequently Asked Questions
- What is a cathedral-port to rectangular-port adapter used for on LS engines?
Answer: It allows cathedral-port LS heads to mount to rectangular-port manifolds or superchargers, enabling performance upgrades without swapping heads. - Which part is best for a Whipple supercharger setup?
Answer: The WHIPPLE adapter is designed to convert oval inlet to round throttle-body compatibility, facilitating Whipple-specific configurations. - Is an EFI intake manifold suitable for forced induction?
Answer: Yes, when paired with appropriate boost hardware, it can support power adders like turbo or NOS in high-performance builds. - Do these products guarantee increased horsepower?
Answer: The listed features and fitment support performance gains, but actual gains depend on the entire system, tuning, and conditions. - What should I verify before buying a kit?
Answer: Confirm head type (cathedral vs rectangular), throttle-body diameter, manifold compatibility, and installation requirements for your engine. - Are these parts suitable for street use or only track?
Answer: Several options cater to both street and track applications, but always validate with your build goals and tune requirements.