408 stroker header size

I am interested in how the TTI W2 1 7/8 headers fit, I have a 68 Dart with a 408 and now have Tubular Automotive 1 7/8 they are worn out and am debating between them and the TTIs I like the idea of getting away from the 90 degree filter adapter

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I had the 1 3/4 w2 headers in my 67 dart and they fit perfectly. The only issue I had was with the gaskets from remflex and it made it impossible to get the spark plugs out.
I am now switching to the 1 7/8 w2 headers because of a head change. I am hoping they fit just as nice.