Cannot find casting number BB RH exhaust

[Kernel Sanders]

Hi,

I scored these mani's at the local pull-it yard the other day off a 75 CBody (Newport) w/400ci. The numbers are;

3830800 - Left
3830620 - Right

I have sound some infor on the left mani confirming it is for 75 but the right I cannot find any info at all. It almost like it never existed! lol

I was just trying to confirm if these were a matching set as the heads that were on this 400ci engine were mismatched. Matching or not it was still a score at $15 bucks each.

I'ts just weird that I find absolutely nothing on 3830620 Has anyone come across this casting before?

Secondary question... Has anyone attempted to use 3830800 on a BB in an Abody?

 

[Kernel Sanders]

Just found a reference 3830820

 

[Oklacarcollecto]

I can find a manifold number 3830820 listed used form 75 to 78 on 400s and 440s.

 

[Kernel Sanders]

I can find a manifold number 3830820 listed used form 75 to 78 on 400s and 440s.

Excellent, thank you! That fits with the other mainifold reference and the year of the car they came from.