Holley Hi-Ram EFI Intake Manifold Kit - Small Block Chevy 300-950
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Features:
- 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
- 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.
- Uses drive by wire or cable actuated GM Gen IV LS 4-bolt throttle bodies
- 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
- 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.
- Power Band: 1500-8000 RPM
- Black anodized EFI fuel rails are machined for -8AN O-ring fittings and come included with the EFI Hi-Ram kits.
- Plenum Top Gasket Type Ð 3/32Ó Round O-ring Cord
- Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish
- Requires the use of early type GM or small cap MSD or Holley Distributors. Not compatible with HEI distributors
- 1.95Ó tall x 1.25Ó wide port flange openings, uses Mr. Gasket intake manifold gasket #5281
- Throttle Cable Bracket is supplied in the kit
About Holley

Holley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.
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