Seal the intake manifold to the cylinder heads and keep your Chevrolet Small Block Gen I V8 breathing right with the Mr. Gasket Intake Manifold Gasket (MPN 143) — a MR. GASKET intake gasket cut for these engines. It fits many GM applications with V8-4.6L, V8-5.0L, V8-5.3L, V8-5.4L, V8-5.7L and V8-6.6L engines, including the 1962-1985 Chevrolet Impala 5.0L / 5.3L / 5.4L / 5.7L / 6.6L. See the "Vehicles it fits" section for the full list.
Suited to original-equipment replacement as well as high-performance street, drag race and oval track use. Made in the United States; one gasket per application.
Interchange: 1282
This part cross-references / interchanges with the following part numbers:
What is the Mr. Gasket 143 intake manifold gasket made from?
It is made from a cellulose/nitrile composition — a low-density material that conforms well to irregular surfaces and provides good crush resistance at high flange pressures.
Is this Impala intake manifold gasket right for the 1962-1985 Chevrolet Impala 5.0L / 5.3L / 5.4L / 5.7L / 6.6L?
It is cataloged for the 1962-1985 Chevrolet Impala 5.0L / 5.3L / 5.4L / 5.7L / 6.6L. Check the "Vehicles it fits" section to confirm your exact year and engine.
What are the port shape and dimensions?
It has a rectangle port shape measuring W-1.35 in x H-2.26 in, with a 0.060 in thickness.
Can this gasket be trimmed?
Yes. It is precision die-cut for fit but can be trimmed if necessary for modified port applications.
What fluids and temperatures does it seal?
It is designed to seal gasoline, oils, water and coolant in applications up to 350°F.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
