Holley's Lo-Ram intake manifold base is engineered for GM Gen V LT engines running GM LT-style cylinder heads (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 version includes the high-volume -8AN port injection fuel rail kit.
Specifications:
- Engine: GM Gen V LT1
- Configuration: Top-feed, with port injection
- Fuel rails: High-volume -8AN, includes hardware and brackets for both long (standard length) and short (Pico, LS7) injectors
- Throttle body opening: 105mm, works with throttle body PN 112-581 or similar
- Finish: Black
- RPM power band: 3,500-8,000
- Part Number: 300-711BK
FAQ
Does this kit include the fuel rails?
Yes — it includes a high-volume -8AN port injection fuel rail kit with hardware and brackets for long or short fuel injectors.
Can this manifold clear a plenum-mounted intercooler?
Yes — the low-profile top-feed design is suitable for use with plenum-mounted air-to-water intercoolers on boosted applications.
What throttle body fits this manifold?
The 105mm flange works with throttle body PN 112-581 or similar models.

