Old dual guad manifold

[62maxwedge]

I have this old dual quad manifold and i am unable to find out what it fits. There are none of the usual casting numbers only thing are the numbers E7740M and a casting number 12. 10. 8. If anyone knows what this is please let me know. Thanks

 

[kkritsilas]

To me, it looks like something intented for a big block, and possibly from Edelbrock (based on the E in E7740). I don't think it is a Mopar intake, either factory or Direct Connection. It may be intended for racing, based on the square bore carb bases, basically being for 2 Holley double pumpers.

 

[XfbodyX]

Semi rare early Factory 413 RB Marine intake. The 413 automotive dual quad intake was very much the same in appearance with the main difference is this has the threaded outlets of the heat crossover.

 

[Aspen500]

I'm just curious on the threaded exhaust crossover outlets. What are they actually used for?

 

[AMC Diplomat]

Here's a pic I found of one with the cooling passages plumbed up

 

[62maxwedge]

I have this old dual quad manifold and i am unable to find out what it fits. There are none of the usual casting numbers only thing are the numbers E7740M and a casting number 12. 10. 8. If anyone knows what this is please let me know. ThanksView attachment 49201

View attachment 49202

Thanks for the info. I thought it might be something like that but i was not sure. Now i am going to sell it since i no longer have the car i was going to put it in.

 

[62maxwedge]

I'm just curious on the threaded exhaust crossover outlets. What are they actually used for?

They are not exhaust crossovers but water passages to help keep the intake and carbs cool.

 

[Aspen500]

Thank you! I'm not a boat person but that makes more sense than exhaust heat for the carbs,,,,,,,,on a boat.

 

[XfbodyX]

Sorry, didnt mean to confuse heat with exhaust. From the way they connect up front to the water pump I always thought it was more for even heating (water/flow) in the intake vs cold water all the time sorta like they used to flow coolant through under the carb. I think ford was big into it at one time. But then again ive only seen them out of the water.