69 Z/28 Exhaust Manifolds

[LM69Z28]

Saw a Z with LH manifold # 3933041 or 3939041. I know this is not correct but can anyone ID this part and which motor/car it belongs to?
Thanks
LM69Z28

[bertfam]

I think you mean 3989041, which is a 71-74 small block application used in various Chevrolet models and engines (307, 350 and 400).

Ed

[LM69Z28]

Ed
Those numbers maybe correct. It is hard to read the numbers in the photos but it sure is not correct for a 69Z.
Thank Ed
Best
Michael Kellogg