Anyone know where to locate a set of B to RB intake manifold spacer adapters?

I have a M1 tunnel ram that I really would like to use on the 440.

Since the M1 is impossible to find, complete, or just a base. I am hoping to find a set of spacers to complete my build.

I don't think it is that easy, if it was people would use adapters more often. I think you end up with a bit of a dogleg when you try that trick.

I believe they used to make adapters, how they fit I don't know.

https://angeluccimfg.com/products/m...gine-manifold-spacer?variant=27062532673

I know they used to be available.

And as far as fitment, my understanding was it just used a valley pan, and a set of paper felpro gaskets and 1 inch longer bolts.

I would just like to find someone that has a set they aren't using, or a place to try and fine a set new or used.

I gave you a link to someone selling new ones. Never mind, seems they are out of stock. Might drop them a line and see if they are planning another run?

I had already emailed them prior to making my post. I also used the search option and hunted Moparts for older information on the topic.
But other than finding someone someone else asking about them years ago, and reading replies on that post from others saying to just buy a 440 intake because they are cheap at $50-$100 (boy do i miss those days) I hadn't found much info on them. I do remember when they were somewhat common.

Hopefully I can find a set, or that M1 lower section.

I made mine out of yellow pine back in the 70s. 383 Torker on a 426 Max, painted with epoxy to seal up. I still have them hanging on the wall. Blew all the minds. Good heat sink. It’s a straight shot with the right thickness and If I did again I’d use the multi ply Baltic birch, stronger, same thing I make carb spacers out of.

Mopar Performance used to make them but they don't make anything any more so probably will have to find used ones.

I found a guy on ebay that sold them. I'll go back thru my emails and see if I can find his name and number. Might be the same person mentioned above. They were really nice.

When using the MP aluminum Stage VI heads on a 413-440 you need the spacers. On a 383-400 you use an RB manifold.

Here is the fellow above that I got a set from. But as you can see its been a few years.

Google Stage VI intake spacers, I think this same guy has an ad for them, he is out of Michigan. Hope it helps.

Dang you have emails from 2015?

Yeah, in my personal account. I dont use it much, more like a large memo pad. LOL

I still have emails from 2004 or so LOL maybe even older!

I have some maybe from a few months ago.

They are easy enough to get made if you know the thickness you need.


Stuff like that I draw up in CAD and send it to a local shop to have it waterjet or lazer cut. I would offer to, but I literally just went through all my gaskets yesterday and have no bb intake gaskets to measure as well as I am not sure the thickness.

Some body on here should have the thickness.

Just a thought

Thickness of the plate I believe should be .850.

that thickness sticks in my mind as well. however, if i remember it right, 3/4" spacers were used as a starter, then selective gaskets were used on each side of the plates to best center the ports of the manifold to the head ports. when all was said and done, the total thickness [plate plus gaskets] was approximately .850.
i looked in an old MP engine book that talked about adapter plates, but those plates were for B-1 heads only.
as you said, someone here should have the dimensions of those spacers.

I was able to find a set.

And a member here also had a set, but I had purchased the others beforehand.

how thick were they ?