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#1 |
Registered User
![]() Join Date: Jul 2007
Location: Pittsburgh, PA
Posts: 294
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Offenhauser Cross Ram Manifold
<ast weekend when I was at the Parts-a-Rama Swap Meet in Butler, Pa there was a seller who had a LARGE collection of "INTAKE" manifolds for sale. Must have been over 100 of 'em.
In the middle of this collection was an OFFENHAUSER CROSS RAM MANIFOLD. I have always thought these this were awesome looking.... but do NOT know much about how they work on the street/strip???? I'd be happy just to have it "hanging" on my shop wall.... but as most of you already know I am building "60's gasser" look C10..... can't help but wonder how this manifold would LOOK (and run) on top of our SB Stroker motor??? I already have a brand new Edelbrock RPM Air Gap for this build which I read is a very strong performing manifold for a single carb manifold. The swap meet price for the Cross Ram was $325.... making it too pricey just to "hang on the shop wall"..... I'm a sucker for the "old stuff" Imagine flipping open the one piece fiberglass tilt fronend and seeing that crossram sitting there in all of it's "shinning nostalgic glory"
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John aka "Milner" PA-IndianRider - Pittsburgh, PA 70 Chevy C10 Stepside "Gasser/Altered Drag Race Hot Rod" Where were You in '62 ? |
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#2 |
just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Offenhauser Cross Ram Manifold
It's a hi RPM thing. You would really have to build your engine combination around it....and you may still be "giving away" a little. If you really want it for the wow factor, it could be made to work, maybe not optimal, but cool.
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#3 |
Registered User
![]() Join Date: Jul 2007
Location: Pittsburgh, PA
Posts: 294
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Re: Offenhauser Cross Ram Manifold
That's the "sense" I haave about this thing.... possibly "stored" in my memory bank from "days gone by". If I could pick up one for a resonable price I probably would .... it looks kool just sitting there.
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John aka "Milner" PA-IndianRider - Pittsburgh, PA 70 Chevy C10 Stepside "Gasser/Altered Drag Race Hot Rod" Where were You in '62 ? |
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#4 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Offenhauser Cross Ram Manifold
i fooled around with them in the late 60's early 70's/// a very high rpm nonstreetable unit they never really start working till you get up around 6-7thousand rpm and above and you tune it in the morning and it needs to be retuned at night// a much better but still real marginal for the street was the low profile weind crossram// the wall is the perfect place for them tho
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#5 |
Senior Member
Join Date: Jun 2005
Location: Clovis Ca.
Posts: 3,311
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Re: Offenhauser Cross Ram Manifold
NICE FIND!!! Those Offy manafolds are hard to find. I know a guy that running one in his 55 Chevy wagon. He has two 500 cfm Edelbrock carbs. He drive it on both the streets around town and on the highway with know problems. He had to run vacum lines from both sides into one to keep it from loading up. I notice someone has already installed the nipple fittings on the back of yours. Just make sure if you go with a electric chock, just have it one of thr carbs only.
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Classic Trucks Link http://www.classictrucks.com/feature...uck/index.html 1958 GMC.Project Build http://67-72chevytrucks.com/vboard/s...d.php?t=162816 1966 Chevelle Build http://67-72chevytrucks.com/vboard/s...d.php?t=443576 Video http://www.youtube.com/watch?v=prrNKo8F7Zw#GU5U2spHI_4 |
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#6 |
Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: Offenhauser Cross Ram Manifold
This looks a lot different than the box style Z/28 manifold. Actually looks better to me. The runner length actually looks quite long, probably just as good as some dual planes out there.
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1977 GMC Sierra Grande |
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#7 |
Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: Offenhauser Cross Ram Manifold
While on the topic, I was cruising ebay...check this out....
http://cgi.ebay.com/ebaymotors/SBC-C...m270248882160& They took one of the 82-84 Crossfire injection intake manifolds, made a cover to mount dual 4 barrels on it, and are trying to pass it off as cross ram manifold. I hope someone unknowing doesn't end up buying that because they will be very disappointed. If it wasn't for those extremely small ports, that might actually work.
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1977 GMC Sierra Grande |
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#8 | |
Registered User
![]() Join Date: Jul 2007
Location: Pittsburgh, PA
Posts: 294
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Re: Offenhauser Cross Ram Manifold
Quote:
No doubt these Offy manifolds & the factory cross rams are some of the coolest looking manifolds ever made.... ranking up there with the cross ram manifolds found on the early 60's Mopar big blocks (413) ....ahhhhhh those where the days!!!! ...... or at least I think so!!!! HA!!!!
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John aka "Milner" PA-IndianRider - Pittsburgh, PA 70 Chevy C10 Stepside "Gasser/Altered Drag Race Hot Rod" Where were You in '62 ? |
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#9 |
Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: Offenhauser Cross Ram Manifold
Where can you buy one and whats the part number ?
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1977 GMC Sierra Grande |
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#10 |
Registered User
![]() Join Date: Jul 2007
Location: Pittsburgh, PA
Posts: 294
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Re: Offenhauser Cross Ram Manifold
Like me, most people think the Offy Cross Ram manifolds are no longer available. I think this comes from the fact that the Chevy produced Z28 manifold is no longer made.
There is a LOTof info to be found online about the Offy Cross ram everything from suppliers (Summit, Jegs, etc) to performance results, tuning tips, forum thread posts, etc Here's a few pictures from the SUMMIT Catalog..... Note: Offenhauser manifolds are sold as "bases" & "tops" ..... pricey too.....
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John aka "Milner" PA-IndianRider - Pittsburgh, PA 70 Chevy C10 Stepside "Gasser/Altered Drag Race Hot Rod" Where were You in '62 ? Last edited by PA-IndianRider; 06-24-2008 at 06:54 AM. |
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#11 |
Senior Member
![]() Join Date: Mar 2008
Location: tyler texas
Posts: 1,537
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Re: Offenhauser Cross Ram Manifold
You know instead of hanging it on the wall you could take a junk block and heads and paint it up real nice . Put 2 old carbs on it and have a really cool conversation piece in your shop .
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NHRA Super Street 469C It only runs 10.90 at 156 mph |
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#12 |
Registered User
![]() Join Date: Jul 2007
Location: Pittsburgh, PA
Posts: 294
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Re: Offenhauser Cross Ram Manifold
Hey Regan you're reading my mind.... I have been looking for a mock up engine (one of those plastic ones) and after I'm done with it (if that day ever comes) I thought I'd dress it up with a nice set of valve covers, oil pan, multiple carb setup, etc and display it in the shop.... got lots of other cool old stuff hanging in the workshop already..... both motorcycle & car stuff.... It's an addiction...ha
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John aka "Milner" PA-IndianRider - Pittsburgh, PA 70 Chevy C10 Stepside "Gasser/Altered Drag Race Hot Rod" Where were You in '62 ? |
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#13 |
Registered User
![]() Join Date: Jul 2007
Location: Ottawa Ontario Canada
Posts: 1,156
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Re: Offenhauser Cross Ram Manifold
I just got rid of a Edelbrock cross ram for a BBC with linkage for like $300- it was MINT!
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#14 |
Registered User
Join Date: Feb 2007
Location: knoxville tn
Posts: 1,013
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Re: Offenhauser Cross Ram Manifold
Man as allways daylatedollarshort
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nickle and dime |
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#15 |
Senior Member
Join Date: Jun 2005
Location: Clovis Ca.
Posts: 3,311
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Re: Offenhauser Cross Ram Manifold
Okay so I know I'm bring this post up from the grave but I had to post my Offenhausher cross ram intake I bought about a year ago that I'm now installing on my 66 Chevelle.
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Classic Trucks Link http://www.classictrucks.com/feature...uck/index.html 1958 GMC.Project Build http://67-72chevytrucks.com/vboard/s...d.php?t=162816 1966 Chevelle Build http://67-72chevytrucks.com/vboard/s...d.php?t=443576 Video http://www.youtube.com/watch?v=prrNKo8F7Zw#GU5U2spHI_4 |
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#16 |
Registered User
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,560
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Re: Offenhauser Cross Ram Manifold
Oh how I would like to hear that running!
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70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
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#17 |
BigBlockBobby
Join Date: Mar 2004
Location: Lake Worth, Florida
Posts: 740
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Re: Offenhauser Cross Ram Manifold
Have a Edelbrock crossram on my LS6 crate 454..in my 67 Chevelle. Definitely get the looks.
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Bob |
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