
300-963 Hi-Ram Intake Manifold w/105 mm Throttle Body Flange for Big Block Chevy Engines
Holley 300-963 Hi-Ram Intake Manifold:
- Compatible with standard 9.80 in. deck height Big Block Chevy engines with standard intake flange rectangle-port cylinder heads
- Uses drive by wire or cable actuated GM Gen IV LS 4-bolt throttle body
- Black anodized EFI fuel rails machined for -10 AN O-ring fittings
- MAP sensor port for GM Gen IV LS MAP sensor
- Provisions for (1) 1/8 NPT, (1) 1/4 NPT, (1) 3/8 NPT fittings
- Standard Chevy thermostat housing flange
- (2) 1/2 NPT and (1) 3/8 NPT coolant ports
- Cost-effective alternative to fabricated sheet-metal or billet manifolds
- Fits high-performance applications where induction system height is not limited
Holley 300-963 Hi-Ram Intake Manifold Notes:
- 2.40 in. Tall x 1.60 in. Wide port flange openings use Mr. Gasket intake manifold gasket 5817 or equivalent (sold separately)
- Requires the use of early type GM or small cap MSD or Holley Distributor
- Not compatible with HEI distributors
- Throttle Cable Bracket supplied in the kit
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.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Hi-Ram Intakes for Your Chevy
Hi-Ram Intake Manifolds for the Small or Big Block Chevys are now part of the renowned Holley Hi-Ram Manifold series. These intakes deliver the performance and sleek appearance of high-end billet and fabricated racing manifolds at a fraction of the cost.

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