identify my OFFY hemi intake? PLEASE?

[Scott1953]

Hi Guys,

I've been out of the dodge/mopar scene a little while. I just bought this intake from a guy who wasn't sure what it was for. I think that i've figured it's for a 53-54 241 or 270 cubic inch hemi. They made them for the 54 pace car and then I'm assuming they made them after that for sale to the public. Then in '09 they did another casting run. My manifold has no casting numbers and the new ones have 2 bosses cast into the main runner on the back. ANyone lead me down a path of authenticating this as an early intake or possibly a 54 dodge royal pace car intake manifold? It came with a stromberg aero-quad 4 barrel that fits the intake pattern if that helps.

Thank you,

Scott

[greg g]

can't help you but it looks like a nice piece. woder if it might also fit early Poly engines?

[Adam H P15 D30]

It almost looks like a Nailhead intake. Not a Chrysler Hemi or Poly.

[Scott1953]

Overall Length x Width = 15.75 x 11.5"

Center to center on the front and rear bolt holes from driver to pass side is 8.5"

What other dimensions needed to make a positive ID

[Niel Hoback]

Are the ports on the same plane as the carb mount? It does look like an old Buick part.

[Scott1953]

Here's the bottom and ports. They aren't on the same plane, they are angled a little bit. I will post a pic up from an offy ad showing that it looks like one for the hemi but mine doesn't have casting numbers to verify it. Did offy used to cast parts and not cast part #'s into them?

[Scott1953]

http://www.google.com/imgres?q=offenhauser+2257&um=1&hl=en&sa=N&biw=1366&bih=673&tbm=isch&tbnid=y-SbIoqqsJBr_M:&imgrefurl=http://www.jalopyjournal.com/forum/showthread.php%3Ft%3D334090&docid=mXCSt484Giaf2M&imgurl=http://www.jalopyjournal.com/forum/attachment.php%253Fattachmentid%253D653401%2526stc%253D1%2526thumb%253D1%2526d%253D1241459098&w=175&h=131&ei=iZxTUIO_NsaXyAHk3IHACw&zoom=1&iact=hc&vpx=933&vpy=354&dur=1865&hovh=104&hovw=140&tx=110&ty=69&sig=104691054104172348174&page=1&tbnh=104&tbnw=140&start=0&ndsp=16&ved=1t:429,r:8,s:0,i:100

Hope a link to a hamb thread isn't forbidden but here's a pic of one from a recent run (2009).

I just noticed another difference. Mine doesn't have a separate 4 hole plate on top, it is all cast one piece with the 4 holes.

[TR Waters]

I is a small Dodge.....same as what you were told on the HAMB. The additional plate that comes with a new intake is an adapter to use a modern Edelbrock or Holley carb. The extra bosses are to mount the coil.

[mrwrstory]

By what I see in the first pic and the 8.5" dim., I'm thinkin your manifold is not for a 241-270 Hemi. I too would guess Nailhead.

This manifold fits my 241. Yes, it not an Offenhauser 4bbl but I gotta believe the mating surfaces to the heads would

be the same. The bolt hole spacing you indicated at 8.5", measures close to 9.0" on the head side of my manifold.

The "North to South" dim., easiest to measure with a tape, is 14.81" The surface that interfaces with the head is

about 25 degree off horizinal and overall dims. of the rectangle is 12.5" x about 17.38"

So,.........what it be???????

Edited September 23, 2012 by mrwrstory

[Plymouthy Adams]

have you considered the one year Dodge 326 poly