The Holley LS1/2/6 Lo-Ram intake manifold kits are meticulously crafted for GM LS Gen III and IV engines featuring GM LS1/2/6 (cathedral port) cylinder heads. Compatible with both OE and aftermarket cylinder heads, these intake manifolds are tailored for forced induction scenarios, be it supercharged or turbocharged applications, and are optimized for use with the 105 mm throttle body (part number 112-581 or similar models). The foundational intake manifold boasts a low height, strategically designed to facilitate the accommodation of a plenum-mounted air-to-water intercooler in a top-feed configuration.
The 300-620 plenum entry configuration allows seamless integration with the included Hi-Ram 105 mm plenum top, specifically engineered for a low-profile base intake manifold. This short-runner, low-profile design caters to forced induction applications, aiming to pair with an air-to-water plenum-mounted intercooler, achieving a shorter overall height compared to existing intake manifold options.
The fuel rail kits are versatile, featuring two sets of brackets—one for long (typically standard length) fuel injectors and another for short injectors like Pico or LS7.
Key Features:
- Engineered for GM LS Gen III and IV engines with GM LS1/2/6 (cathedral port) cylinder heads
- Tailored for forced induction (supercharged or turbocharged) applications with peak power at 7000-8000 rpm (application-dependent)
- Modular design for compatibility with the included plenum entry
- Low height for accommodating a plenum-mounted air-to-water intercooler in a top-feed configuration or fitting under a stock or mildly modified hood in the front-feed configuration
- High-volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)
- Local Pickup Available:
- No
- Local Delivery Available:
- No
- Additional Handling:
- No
