• Some orders may take longer to arrive due to shipper and supplier delays.
0
0
Account Login
1-800-345-4545
Gift Cards
Track Order
Help Center

Mr Gasket Intake Manifold Gaskets Performance Material

720-121

made in usa

Product Q&A
View Now
Click image to zoom
Mr Gasket 121
$18.40
More than 10 available
Intake Manifold Gaskets
  • Performance Material
  • 1965-90 Chevy 396-454 Gen IV.
  • Thickness: .060''
  • Rectangular Raised Port: 1.85'' X 2.55''
  • Ships
    QTY

    Does Mr Gasket 121 fit your vehicle?

    Narrow Results
    Filter By Year
    Filter By Make
    Filter By Model
    Filter By Sub-Model
    Filter By Engine
    Filter By Aspiration
    Filter By Liter

    1969 CHEVROLET C30 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 396
    • Engine Type: V8 ( 6.5L / 396 )
    • Engine Vin: E

    1973 GMC K25/K2500 PICKUP

    • Liter: 7.4
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: Z

    1971 CHEVROLET CHEVELLE

    • Liter: 7.4
    • SubModel: MALIBU
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: -

    1981 GMC C2500

    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: W

    1977 CHEVROLET K5 BLAZER

    • Liter: 7.4
    • SubModel: CHEYENNE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: S

    1970 CHEVROLET MONTE CARLO

    • Liter: 6.6
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 402
    • Engine Type: V8 ( 6.6L / 402 )
    • Engine Vin: -

    1970 CHEVROLET KINGSWOOD

    • Liter: 7.4
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: -

    1969 CHEVROLET C10 SUBURBAN

    • Liter: 6.5
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 396
    • Engine Type: V8 ( 6.5L / 396 )
    • Engine Vin: Y

    1976 GMC G35

    • Liter: 7.4
    • SubModel: MAGNAVAN
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: S

    1982 GMC C2500

    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: W

    1968 GMC C35/C3500 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 396
    • Engine Type: V8 ( 6.5L / 396 )
    • Engine Vin: E

    1973 GMC JIMMY

    • Liter: 7.4
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Rectangle Port Shape; Port Dimensions W-1.85 in. x H-2.55 in.; Thickness .060 in.
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: Z
    121 - Mr. Gasket Intake Manifold Gasket Sets is rated 5.0 out of 5 by 3.
    Rated 5 out of 5 by from Great gaskets Excellent gaskets for my Rat Motor. Thickness was good for new head/uncut manifold application. Also better for use with aluminum intakes rather than the harder FelPro gaskets. Because of lower torque on the intake, they seem to seal better.
    Date published: 2019-07-11
    Rated 5 out of 5 by from Great Gaskets I’ve used these for 15+ years. Good fit on Edlebrock 454R intake. Worked on BBC 990, as well as Dart Pro 1 heads. Never had a leak.
    Date published: 2019-01-13
    Rated 5 out of 5 by from Intake gasket Gaskets fit great on my hp intake on my 454 Chevy SS
    Date published: 2015-11-10
    • y_2021, m_5, d_11, h_17
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.15
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_3
    • loc_en_US, sid_10001_10001_29840, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Items You Need

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

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.