ive been digging around in the dark corners of my barn and found a few manifolds.. If i remember right i pulled them off a big block truck. Its been a few years tho.. #3830800 aa and 3830800 1 also 3830820.

Gonna list them just want to make sure of what ive got here.. Any help would be great thanks!!

rumney, nh
ejtmopar@hotmail.com

The 800's are truck. Not sure about the 820. Have a picture?

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That bottom one looks like a late 70's B/C body piece.

the two bottom pics are the 3830800

Every Big Block Truck Manifold I've seen has the flat exit flange. Plus weren't all driver side truck manifolds center dump? Those appear to have the beveled "donut" cast into them indicating passenger car pieces. Someone please correct me if I'm wrong.

Those 800's don't look like truck manifolds to me. GG book says they are but I've have several 70's BB trucks and all had center dump manifolds on both right and left side.
I agree that they are mid-late 70's B/C units.

I have a pair of these. I was told a 440 engine and these manifolds were pulled out of a late 70's cop car.

You aren't wrong. Same experience here...

Ed

I know some of the big block vans had a rear dump on the passenger side and a center dump on the drivers side.

These are what I have always had on my 440 trucks.

I agree!

Nope. Big block mid-late 70s (75-78) vans had a rear dump on the driver side. Had 2 of them. The manifolds were under the floor, dumped into the pipes above and towards the outside of the starter, and kicked out, then down and back. Made changing plugs and starters a royal pita. Those could have been off a "B" van or a van nosed motor home.
All the big block pickups I've seen had the center dump on both sides, but the big block vans were different critters, rear dump on both sides.
Gene

Ya, those aren't truck manifolds....that being said there was a member here that had those in a four wheel drive white truck (72 and up) and it didn't look that they had any issues with clearance and fitment.....they are like a small block...in that the donut is made to them....I kind of like that myself....if I was going to run manifolds I would try and run them......I've got both sets....but.....