Any height difference?

[JMB711]

I obtained a what I thought was an almost complete stock 73 340 minus a factory intake. Pulled the valve covers yesterday to get the head #'s and found 1970 2531894 heads dated 01019 and 12268. I already have a 73 340 3671918 intake manifold, and I am wondering if its worth my while to swap that for a 3462848 1970 intake. Just for a performance standpoint?
And wondering if there is some sort of height difference between these two intakes?

 

[Xcudame]

I guess it depends on what carburetor you have or want to run. Personally, I'd use the 73 3671918 intake and build a good Thermoquad for it. But all Thermoquads are used and some are better than others.

 

[Xcudame]

Oh, any height difference is negligible.

 

[JMB711]

Oh, any height difference is negligible.

Yes, ment carb aside height difference. Would love to see some blueprints on both intakes, but I'd guess that's not happening anytime soon. Lol

 

[Chryco Psycho]

The intakes are very similar other than the different carb mounting , personally if you have a good TQ I would use that & the 73 intake

 

[JMB711]

The intakes are very similar other than the different carb mounting , personally if you have a good TQ I would use that & the 73 intake

Why the 73? I'd think the 70 would be a better match with the 1970 X heads?

 

[Chryco Psycho]

600 cfm carb or 1000 cfm carb with 73 intake