Dan,

If I'm reading the comment correctly, F2 was saying they made it worse. Or, at least, no difference at all.

Thanks. Brad.

I have a set of Dart Big Block girdles on the shelf if you want them cheap PM me. I had a set of partially assembled blocks that local builder put together and it had the girdles. Took my mess to Sterling Performance and they do not use them. Engines run strong with out them and no issues.

Sounds like one of those things I was overthinking again....appreciate all the insight everyone!

I read it the other way that they make a big difference and the last sentence was sarcasm.
maybe F2 can explain?

Engine masters builders have commented that they didn’t help anything with a 6500rpm limit. They could be more durable but I don’t think rocker studs fail that often.