Holley Hi-Ram Front-Feed EFI Intake Manifold Kit - Small Block Chevy
Part # 300-951
- Power Band: 1500-8000 RPM
- Black anodized EFI fuel rails are machined for -8AN O-ring fittings and come included with these 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
- Requires the use of early type GM or small cap MSD or Holley Distributors. Not compatible with HEI distributors
- Throttle Cable Bracket is supplied in the kit
- Plenum Top Gasket Type – 3/32” Round O-ring Cord
- 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
- Is a hood-height friendly Hi-Ram variation and compatible with OE hoods for Gen 1, 2, & 3 Camaros and Firebirds. Should be compatible with most applications with a mild cowl induction hood
- 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
- Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish
- 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.
- 1.95” tall x 1.25” wide port flange openings, uses Mr. Gasket intake manifold gasket #5281
Description
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.
Specifications
| Basic Operating RPM Range | 1500-8000 |
|---|---|
| CNC Ported | No |
| Color | Natural |
| Construction | Cast |
| Cylinder Head Port Shape | Rectangle |
| Deck Height | 9.025 in |
| EGR Port | No |
| Engine | Chevrolet Small Block Gen I |
| Front Maximum Height | 9.63 in |
| Fuel Injectors Included | No |
| Fuel Rail(s) Included | Yes |
| Fuel System Type | EFI |
| Gasket Or Seal Included | Yes |
| Grade Type | Performance |
| Intake Port Gasket(s) Included | No |
| Intake Runner Length | 6.35 |
| Manifold Type | Hi-Ram |
| Material | Aluminum |
| Nitrous Bung(s) Included | No |
| Plenum Finish | Natural |
| Plenum Volume | 364 |
| Port Size | 1.95 x 1.25 |
| Rear Maximum Height | 9.83 in |
| Removable Runners | No |
| Removable Top/Lid | Yes |
| UPC / GTIN | 00090127857410 |
| Warranty | Manufacturer's Limited 90 Day Warranty |