The Holley LS1/2/6 Ultra Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads. These intake manifold and rail kits will work with OE (Original Equipment) or aftermarket cylinder heads.
The 300-625 (satin) & 300-625BK (black), intake manifold kits provide two injectors per cylinder for hi-volume fuel demands, flexible fuel supply strategies, and dual-fuel capability. Also featured on this kit is a standard 6-1/8" x 3-1/8" burst panel flange. SFI approved burst panels, burst panel frame sets, and gaskets may be purchased from various manufacturers such as Allstar Performance or Specialty Fasteners.
The short runner, low-profile base intake manifold was conceived to package with high-boost turbocharged or supercharged induction systems with a short overall height not possible with other existing intake manifolds. This Holley Ultra Lo-Ram kit is configured for a 105mm throttle body, see Holley P/N 112-581 or similar models. The fuel rail kits come with two sets of brackets. A set for long (usually standard length) fuel injectors and a set for short (such as Pico, or LS7) fuel injectors.
Holley Lo-Ram intake manifold kits include all the sealing o-rings, plugs, and fasteners required for the installation of the kit.
Features- Engine Block Style:
- Stock/OEM standard deck
- Basic Operating RPM Range:
- 3,500-8,000
- Intake Style:
- Fuel Injection
- Material:
- Aluminum
- Finish:
- Natural
- Height:
- 6.490 in.
- Injection Style:
- Multi-port
- Throttle Body Bore Size:
- 105mm
- EGR:
- No
- Has Bosses:
- No
- Bosses Machined:
- No
- Boss Quantity:
- N/A
- Injectors Included:
- No
- Fuel Rails Included:
- Yes
- Aftermarket Fuel Rail Required:
- Yes
- Throttle Body Included:
- No
- Quantity:
- Sold individually.
- Notes:
- Dual injector intake manifold provides two injectors per cylinder. Plenum top machined for a standard 6 1/8 in. x 3 1/8 in. burst panel.
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen III/IV (LS-based engines)
- Engine Sizes:
- 4.8L/294-6.0L/364
- Years:
- 1997-2017
- Cylinder Head Style:
- Cathedral port