Holley 300-950 Hi-Ram EFI Intake Manifold Kit Small Block Chevy Small Block Chevy Hi-Ram Intake Manifold with 105mm LS Throttle

Upgrade your engine today with the Small Block Chevy Hi-Ram manifold and experience unparalleled performance and style! Unleash the Power of Your Engine with the Holley SBC Hi-Ram!

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.

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. 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.

Features and Benefits:

• Black anodized EFI fuel rails are machined for -8AN O-ring fittings and come included with the EFI Hi-Ram kits
• 1.95 inch tall x 1.25 inch wide port flange openings, uses Mr
• Gasket intake manifold gasket #5281 Cost-effective alternative to fabricated sheet-metal or billet manifolds for high-performance applications where induction system height is not limited 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 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 Power Band: 1500-8000 RPM Uses drive by wire or cable actuated GM Gen IV LS 4-bolt throttle bodies Plenum Top Gasket Type - 3/32 inch Round O-ring Cord Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish 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 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
• 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.

Details:

• Basic Operating RPM Range: 1500-8000 RPM
• Cnc Ported: No
• Color: Natural
• Construction: Cast
• Cylinder Head Port Shape: Rectangle
• Deck Height: 9.025 Inch
• EGR Port: No
• Engine: Chevrolet Small Block Gen I
• Front Maximum Height: 12.023 Inch
• 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 Inch
• Manifold Type: Hi-Ram
• Material: Aluminum
• Nitrous Bung(s) Included: No
• Plenum Finish: Natural
• Plenum Volume: 528 Cubic Inches
• Port Size: 1.95 x 1.25 Inch
• Rear Maximum Height: 10.69 Inch
• Removable Runners: No
• Removable Top/Lid: Yes
• Single Or Dual Plane Type: Single Plane
• Throttle Body Bore Diameter: 105
• Throttle Body Gasket Included: Yes
• Throttle Body Included: No
• Throttle Bore: 105 Millimeter
• Vacuum Ports: Yes
• Warranty: Manufacturer's Limited 90 Day Warranty

Installation Guide: Download PDF

Installation / Product Video: Watch on YouTube

⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.