Breakdown of Included Items

Holley 300-951 Features:

Holley Hi-Ram Intake Manifolds deliver the high performance and sleek look of professionally crafted billet and fabricated racing manifolds but at the cost-effective price of a cast-aluminum product. This Hi-Ram Intake Manifold is a perfect match for the modernization of Holley EFI systems and Accessory Drives in Small Block Chevy engines.

• Hood-height friendly, compatible with GM F-Body Gen I/II/III OE hoods and most applications with a mild cowl induction hood
• Uses drive-by-wire or cable-actuated GM LS Gen IV 4-bolt throttle body, including DBW throttle bodies
• Plenum provisions for (1) GM LS Gen IV MAP sensor, (1) 1/8 NPT fitting, (1) 1/4 NPT fitting, and (1) 3/8 NPT fitting
• 1.95 in. tall x 1.25 in. wide port flange opening
• Fuel rails accept both long and short-type fuel injectors

Holley 300-951 Notes:

• Requires the use of early type GM or small cap MSD or Holley distributors - Not compatible with HEI distributors
• Compatible with Small Block Chevy engines equipped with 1987-1991 L98 aluminum Corvette cylinder heads (non-EGR applications)
• Will also work with any Small Block Chevy engine equipped with aftermarket cylinder heads with standard port flange openings and bolthole locations

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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