Edelbrock # 72975 Victor Jr. Intake Manifold with Pre-Assembled Direct Port SBC

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Edelbrock Part # 72975 Victor Jr. intake manifold is designed for small-block Chevy V8 applications. The intake manifold has a Pre-Assembled Direct Port Nitrous System that is excellent for high performance street and racing applications. The Edelbrock Victor Jr. intake manifold provides maximum performance for engines with standard port location, iron and aluminum cylinder heads. The low-profile of the #72975 works well in applications with minimal hood clearance and where 1" or 2" spacers can be used for performance tuning.

Documents & Installation Notes



Availability Available
Application Application Specific
GTIN 00085347729753
Availability Note Available to Order
Warranty 12 Months
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Chrome, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • Recommended intake gasket: Edelbrock #7217.
  • Carburetor pad height = 4.58"
  • For the heights of all Edelbrock manifolds, please visit the Manifold Reference Dimensions page.
  • Use RTV sealant to properly seal end seals, such as Edelbrock High Temp Silicone sealant #1076, DO NOT USE END SEALS GASKETS.
  • Optimum cylinder head port opening size should be as close as possible to the size of the gasket being used.
  • Hardened washers Must be used with intake bolts to ensure proper torque and prevent galling of the aluminum.
  • Sealant must be used on intake bolt threads if the threads extend into lifter valley or coolant passage.
  • NPT/Pipe thread fittings require the use of Teflon tape or paste on threads to ensure proper seal.
  • To ensure maximum performance and a proper seal, Edelbrock gaskets which are specifically designed and manufactured for use with Edelbrock parts must be used.
  • Edelbrock recommends that you retard the ignition timing 1-1/2 degree to 2 degree for every 50 hp added through the nitrous system.
  • Edelbrock advises lowering the heat range of your spark plugs 1 step for every 100 hp added with nitrous.
  • Dedicated fuel system is highly recommended
  • The jet map is based on a nitrous system with a flowing fuel pressure of 6½ - 7 PSI and bottle pressure of 900-950 PSI.
  • With all nitrous oxide applications, forged pistons are highly recommended.
Center Maximum Height 4.580 in
CNC Ported No
Color Satin
Front Maximum Height 4.580 in
Material Aluminum
Rear Maximum Height 4.580 in
Single Or Dual Plane Type Single Plane