plastic exhaust manifold trays 273 drivers exhaust manifold
They are metal not plastic. I don't think they are repo-ed
The later 340 versions MIGHT be different than the 273 version but here is a link to get you started
273 version
Exhaust Manifold Gasket W/Heat Shield# 2465845 - LH - A - Body - 1964-68 - NOS - SHIPS FREE TO LOWER 48 - Blue Star Performance
They are metal not plastic. I don't think they are repo-ed
The later 340 versions MIGHT be different than the 273 version but here is a link to get you started
273 version
Exhaust Manifold Gasket W/Heat Shield# 2465845 - LH - A - Body - 1964-68 - NOS - SHIPS FREE TO LOWER 48 - Blue Star Performance