exhaust manifold

[barnyard]

1995 350SBC wet exhaust. Upon inspecting manifold,
found metal worn away on top slots with partition maybe 1/16" deep. Is this a problem? one gasket, two gaskets or replace?

 

[Scott06]

1995 350SBC wet exhaust. Upon inspecting manifold,
found metal worn away on top slots with partition maybe 1/16" deep. Is this a problem? one gasket, two gaskets or replace?

yes has to be flat . you may be able to resurface them with a belt sander, bastard file, or if you have access to machine shop they can mill them down.

Alternatively if you are not is fresh water and they are of unknown age better off replacing with good OEM merc or Barr manifolds

 

[kenny nunez]

Hope the manifold is not the $$$ catalytic converter type.

 

[Scott Danforth]

1995 would be the cheap mercruiser manifolds (relatively speaking as the price tripled in the last 5 years)