A Body 741 Sure Grip Value.

SGBARRACUDA said
I’ve been in this hobby since I bought a new 1970 340 4 speed Duster. And my personal experience is that I’ve never seen a cone SG in a early model 741 or 742 case. That I knew came from the factory.

I have, more so in the 741 than the 742.
Keep looking you will eventually see it.

I had a pre 741 with a cone type in it. I think the housing was a 657.