Cast Iron 340 intake question ......

[wally426ci]

Im picking one up this weekend and Id like to know the part numbers for a 70 and 71. I have a 69 style on my car with the 4 hole style intake and supposedly this one im getting is a 71. AND, which style has a better performance rating??

 

thanks

[Green Drop Top]

The 71 style with a Thermoquad will be a better combo for power, the last 3 digits on a correct 71 intake are 100

[wally426ci]

Sweet, thanks. Im running an edelbrock 750 if that info helps anyone. im just wondering hoe different the porting on either model is...

[Green Drop Top]

Sweet, thanks. Im running an edelbrock 750 if that info helps anyone. im just wondering hoe different the porting on either model is...

Completely different, the 71 TQ intake is much better design than any other factory intake except for the 340 six pack.

[wally426ci]

Aww sweet. yeah, i got the part numbers from mymopar yesterday. I have a '70 model on mine. thanks!

[oldkimmer]

If u r in need of 1 or 2 ......shoot me a P/M........kim............

[bb71challenger]

Completely different, the 71 TQ intake is much better design than any other factory intake except for the 340 six pack.

I always heard that change alone made quite a bit of horse power over the 70 unit. Many people hate the Therms but my brother in law has a 71 340 'Cuda and I love the big secondary openings and the way it sounds when you punch it

[wally426ci]

oh, i see. well, i plan on keeping the edelbrock if that matters. does anyone have a preferance between the 2 designs?? or will it not make a big difference?

[Green Drop Top]

A well tuned TQ and factory intake will make mincmeat of an EB on a 70 intake. Pure and simple.

[mrbill426]

Is the (early) '72 TQ intake any different?

 

[Green Drop Top]

No, nothing substantial, intake is basically the same. A 72 TQ is a better carb than a 71, 71 was a one year only carb with oddball with air adjust screws, they went to wet flow after that, much easier to tune as well.

[mrbill426]

Thanks, Harms 

No, nothing substantial, intake is basically the same. A 72 TQ is a better carb than a 71, 71 was a one year only carb with oddball with air adjust screws, they went to wet flow after that, much easier to tune as well.

[moper]

The '71 casting number is 3512100. I posted on moparts about one I found and it came back to be a '71. I have a '71, and a '72. They look externally identical, but the numbers are way different.