HOL-300-950 Holley Hi-Ram EFI Intake Manifold Kit – Small Block Chevy
Small block Chevy Hi-Ram intake manifold with 105mm LS throttle body flange plenum top
Features
- MAP sensor port is for a GM Gen IV LS MAP sensor, manifold also has provisions for (1) 1/8 NPT, (1) 1/4 NPT, (1) 3/8 NPT fittings to the plenum
- Cost-effective alternative to fabricated sheet-metal or billet manifolds for high-performance applications where induction system height is not limited
- Designed for 1955-86 265-400 Gen 1 Chevy engines fitted with cylinder heads having a standard intake manifold flange configuration. Not designed for raised intake port, 18 degree, or L31 Vortec type cylinder heads.
- Throttle Cable Bracket is supplied in the kit
- 1.95” tall x 1.25” wide port flange openings, uses Mr. Gasket intake manifold gasket #5281
- Power Band: 1500-8000 RPM
- Requires the use of early type GM or small cap MSD or Holley Distributors. Not compatible with HEI distributors
- Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish
- Plenum Top Gasket Type – 3/32” Round O-ring Cord
- Black anodized EFI fuel rails are machined for -8AN O-ring fittings and come included with the EFI Hi-Ram kits.
- The coolant outlet is a standard Small Block Chevy thermostat housing flange and (1) 1/2 NPT and (2) 3/8 NPT coolant ports are provided.
- Uses drive by wire or cable actuated GM Gen IV LS 4-bolt throttle bodies
- The Small Block Chevy Hi-Ram manifold is available in either a traditional Hi-Ram 105mm plenum layout or with a hood-height friendly 95mm front-feed plenum layout
Product Video – YouTube
Introducing the latest addition to the acclaimed Hi-Ram EFI intake manifold series, originally designed for the GM Gen IV LS3 engine. The Holley SBC Hi-Ram is engineered to elevate your vehicle’s performance to new heights.
Upgrade your engine today with the Small Block Chevy Hi-Ram manifold and experience unparalleled performance and style!
The 300-950 model boasts a standard Hi-Ram configuration with a top-feed plenum, designed to accommodate up to a 105mm Gen IV LS 4-bolt throttle body, including drive-by-wire options.
The versatile fuel rail kits are compatible with both long and short type fuel injectors, ensuring flexibility and convenience. Experience the power and aesthetics of high-end billet and fabricated racing intake manifolds, all at the cost-effective price of cast aluminum.
Unleash the Power of Your Engine with the Holley SBC Hi-Ram!
Attributes:
| Front Maximum Height | 12.023 |
| Rear Maximum Height | 10.69 |
| Product Type | Intake Manifold |
| Port Size | 1.95 x 1.25 |
| Plenum Volume | 528 |
| Plenum Finish | Natural |
| part type | Engine Intake Manifold |
| Nitrous Bung(s) Included | No |
| Material | Aluminum |
| Manifold Type | Hi-Ram |
| Brand | Holley |
| Category | Engine |
| Color | Natural |
| Construction | Cast |
| Finish | Natural |
| Intake Runner Length | 6.35 |
| RPM Power Band | 1500-8000 |
| Removable Top/Lid | Yes |
| Removable Runners | No |
| Single Or Dual Plane Type | Single Plane |
| Sub Category | Cylinder Block Components |
| Throttle Body Included | No |
| Throttle Bore | 105 |
| Warranty | Manufacturer’s Limited 90 Day Warranty |
| Fuel Injectors Included | No |
| Fuel Rail(s) Included | Yes |
| Fuel System Type | EFI |
| EGR Port | No |
| Gasket Or Seal Included | Yes |
| Grade Type | Performance |
| Emission Code | 4 |
| Engine | Chevrolet Small Block Gen I |






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