Cross-Ram Intake - Team Camaro Tech
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post #1 of 31 (permalink) Old Nov 12th, 00, 02:25 PM Thread Starter
 
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I've enjoyed reading information here and other places concerning the cross-ram intake on our beloved early camaros. I am curious if anyone knows of any aftermarket maufacturers that make something that is similiar. I am getting things around to redo my 69 camaro. It is missing to many parts for a full restoration. So I am looking to do some modifications that are pleasing to purists and innovative at the same time. Any information would be greatly appreciated.

Thanks,
Wade.
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post #2 of 31 (permalink) Old Nov 12th, 00, 02:47 PM
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Nobody makes them any more. Edelbrock and Offenhauser made cross rams up til the late 80's, but not any more. Of the two the Edelbrock STR-10 was not a very faithful copy of the GM manifold. Where the Offenhauser is very similar to the GM manifold, with the exeption of the carb operating linkages which was setup to use 2 forward facing holley carbs. The GM used one forward and one rearward facing carb.

See the info on this page:
http://www.camaros.org/crossram.shtml

I've got an old Offenhauser intake and linkage in my garage (actually the one on the CRG page) that I could be convinced to part with for the right price



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post #3 of 31 (permalink) Old Nov 13th, 00, 08:49 AM
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The latest PAW catalog shows the Offenhauser manifold with two or maybe three tops available. I know one top is duel carb and one for a single Dominator carb.
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post #4 of 31 (permalink) Old Nov 13th, 00, 09:16 AM
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PAW advertises the Offenhauser manifold for sale in its latest catalog!
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post #5 of 31 (permalink) Old Nov 13th, 00, 10:21 AM
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I stand corrected then. Haven't seen a new Offenhauser manifold for quite a while, thought they went under.

I don't have a PAW catalog and Offenhauser doesn't have a website (unless they are part of another company now). Is it a model 5893? For my own info, how much does PAW list the manifold for? Do they list the prices for the other tops, single 4 bbl and 3 - 2 bbls?


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post #6 of 31 (permalink) Old Nov 13th, 00, 02:49 PM
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What you could do is get the Offenhauser with the dual quad top which is almost identical to the GM. Then, grind off the "Offenhauser" and the 2 linkage tabs that stick up. Get the manifold reskinned and it would look very similar to the GM one, only it wouldn't have the casting #'s or snowflake on it. You would still need 2 Holley double pumpers and the GM style linkage and air cleaner which would still cost some $$$. There's really no inexpensive way to do it though.

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Jeff H - 93 Indy 500 Pace Car(supercharged), Hugger Orange 69 Z28 with JL8 brakes & crossram
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post #7 of 31 (permalink) Old Nov 13th, 00, 03:38 PM
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Yes, the Offy is still #5893 for the base. Price-237.95. Dual quad top-$112.95. Single quad top-$107.95. THREE Weber top!-$130.95. I also have been thinking about going to the Offy cross-ram. I ran an Edelbrock cross-ram on a '65 Barracuda Formula S car I owned many years ago. I started with the dual Quad and later put a single four on it. It was a blast either way. This was back in 1976 and '77. I loved the crossram on that mopar so I have allways wanted one on my Camaro. Offy seems to be the most reasonably priced and versatile.
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post #8 of 31 (permalink) Old Nov 13th, 00, 03:41 PM
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I have a Edelbrock one, And think it looks alot like one. Its a SY1, I emailed Edel. and they said that it was a crossram designed by Smokey Yunik. I emailed them cause I was hoping to get the dual carb setup top plate. Mine has the single top.
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post #9 of 31 (permalink) Old Nov 13th, 00, 03:43 PM
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Oh yea, does anyone know if the cross ram off a 85 or 6 can be converted to carb setup. I spotted one in the junkyard yesterday, and it has dual throttle bodies on it.
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post #10 of 31 (permalink) Old Nov 13th, 00, 04:18 PM
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Hey Corn,

How the heck are you??

I don't think the ports are big enough in the "cease-fire" crossram manifold that you are asking about. I read someplace that they were about half sized and would really choke an engine down. pdq67



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post #11 of 31 (permalink) Old Nov 13th, 00, 05:23 PM
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I talked to Offy a fiew months ago and the manifolds can be ordered directly from them but a better price is available from Summit.
Summit can order them, they are not listed in their catalog.
The manifolds are sold separately as base and top components.
A gasket comes with the base and one with the top.
The weber top is not available anymore.

He said most guys use smaller carbs with vaccum secondaries on the street.
Fuel distribution is a problem on these type manifolds.
The Offy appears to be the same manifold as the GM one, but with a new top that says Offenhauser on it and a couple of bolts are moved on the top to allow removal of the top without having to remove the carbs first.
There are top attachment bolts postitioned under the float bowls on the GM top.
The Offy base seems identical in every way to the GM manifold, other than the missing snowflake for the winters foundry, the top bolt pattern, the GM part numbers.
It does have the fuel distribution dams cast inside identical to the GM casting.
I have an extra single four top for the Offy manifold, if anyone needs one.
David

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post #12 of 31 (permalink) Old Nov 13th, 00, 05:29 PM
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Hey CORNHOLIO, here's a link to the crossfire manifold with dual 4 top that was just on Ebay. The crossfire manifold was available on 82-83 Camaros and Corvettes. I'm not sure who makes the top to convert to dual 4 barrels. http://cgi.ebay.com/ebaymotors/aw-cg...090047&r=0&t=0
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post #13 of 31 (permalink) Old Nov 13th, 00, 07:24 PM
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wow Jeff, thats a GM manifold too. HuH, I will have to get a photo of the one that I have.
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post #14 of 31 (permalink) Old Nov 14th, 00, 10:53 AM
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I have a Wiend Cross Ram manifold that sets two four barrel carbs side by side. It is low profile and might even fit under a stock hood. I too would part with it for the right price.
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post #15 of 31 (permalink) Old Nov 14th, 00, 12:02 PM
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Check E-bay
search for dual quad..
I've seen the Offy's there before
jk

[This message has been edited by 68ragtop (edited 11-14-2000).]
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