Intake Manifold Gasket - Big Block Chevorlet - Rectangular Port - Performance

Rectangular Raised Large Port, Port Dimensions W-1.75 in x H-2.5 in - 1/16 in Thick, Chevy 1965-1990 Big Block Gen IV

PART# 121

Suggested Retail: $17.48
Your Price: $15.73
Estimated shipping date: 03/24/2017
Free Shipping on orders over $100*


This is a high quality gasket that has been proven to be reliable and easy to use. This is one of our more popular gaskets and is excellent for OEM and most street applications.


  • Made From Cellulose/nitrile Composition Material
  • Provides Excellent Sealing And Durability
  • Can Be Trimmed If Necessary For Modified Port App


BrandMr. Gasket
Emission Code1
EngineChevy Big Block V8
Port ShapeRectangle
Port Size1.75" x 2.50"
Product TypeIntake Gaskets
Thickness.060 inch
WarrantyLimited 90 Day Warranty


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

*Free Shipping & Handling only offered to the continental US on orders over $100.

Some parts are not legal for use in California or other states with similar regulations.