Holley's Lo-Ram intake manifold kit is engineered for GM Gen V LT engines running GM LT-style cylinder heads, whether OE or aftermarket. Built for forced-induction (supercharged or turbocharged) applications with peak power in the 7,000-8,000 rpm range, this top-feed kit includes a high-volume -8AN port injection fuel rail set with brackets and hardware sized for both standard-length and short (Pico/LS7-style) injectors.
Key Features:
- Designed for GM Gen V LT engines with GM LT-type cylinder heads
- 105mm top-entry plenum throttle body flange accepts OEM 4-bolt LS/LT DBW or Holley LS/LT throttle bodies (compatible with PN 112-581 or similar)
- Engineered for forced-induction applications, peak power 7,000-8,000 rpm depending on setup
- Low-profile top-feed plenum design fits under a stock or mildly modified hood
- Suitable for use with plenum-mounted air-to-water intercoolers on boosted applications
- Modular design supports popular Holley Hi-Ram plenum tops or custom-fabricated plenum tops
- Includes high-volume -8AN port injection fuel rails with 3/4-16 O-ring ports and mounting hardware
- 3.18 inches taller than a factory LT1 manifold
- Satin as-cast aluminum finish
Specifications:
- Engine: GM Gen V LT1
- Finish: Satin
- Flange Style: EFI, 105mm throttle body bore
- RPM Power Band: 3,500-8,000
- Product Type: Intake Manifold Kit, top-feed with port injection fuel rails
- Part Number: 300-718
Base manifold, plenum tops, and fabrication flanges are also available as separate kits for custom builds.
FAQ
What's the difference between this Lo-Ram kit and Holley's Ultra Lo-Ram kits?
The Lo-Ram is a top-feed design that's 3.18 inches taller than a factory LT1 manifold and is built to accommodate plenum-mounted air-to-water intercoolers, while the Ultra Lo-Ram is a lower-profile front-feed design.
Does this kit include the fuel rails?
Yes, it includes a high-volume -8AN port injection fuel rail kit with mounting hardware and brackets for standard-length or short (Pico/LS7-style) injectors.
Can I use a Holley Hi-Ram plenum top with this manifold?
Yes, the modular top-entry plenum flange is designed to accept popular Holley Hi-Ram plenum tops as well as custom-fabricated plenum tops.
Is this manifold intended for naturally aspirated or boosted engines?
It's engineered specifically for forced-induction (supercharged or turbocharged) applications with peak power around 7,000-8,000 rpm.