Two days ago a friend brought her car to me, 89 Firebird 2.8L, with a bad exhaust leak. After replacing the blown out O2 sensor and bung it was discovered during reassembly that the donut gasket on the passenger side had a crack through it. Today after a trip to the parts store in my town nobody has a listing for the 2.8L engine gasket however they do list a very different looking gasket for the 3.1L cars. Anyone have more info on where to get a replacement or a part number to referenced?

 

is it just a regular donut gasket? measure the ID of the gasket, or the OD of the sleeve, and pick up a donut gasket. Or is this gasket a bit different?

 

Well the 3.1L gasket has a metal lip on the top of it but the 2.8L is just flat on top.

 

im under the assumption that the 2.8 and 3.1 are the same externally, same exhaust and everything, so I don't see why it wouldn't work. Maybe the metal lip was just an improvement of some kind?

 

The 3.1L cars use a different manifold, it may look similar but they have a cut out area to accept the metal parts that the 2.8L doesn't have. Other then that they are nearly the same manifolds.