Main cap girdles re-discussed

Rat Bastid said
Yep, disagree all you want but I have experience on my side.

And every example you posted is nothing like a girdle like we are discussing.

So there is that. And I’ll say it again just to irritate the general public. If you are having issues to the point you think you need a girdle, or a block fill or both you need to save your money and buy a block.

Unless of course you think the factory is stupid and the aftermarket is stupid and the people who buy good blocks are stupid. Then you are on your own.

One more time for clarity.

A main girdle doesn’t work no matter how bad you want it to.

That's very true! Many people have the idea that adding a main girdle to their $75 stock production block miraculously transforms it into the equivalent of a high dollar aftermarket block, and it simply doesn't. A correctly designed girdle, one that is aluminum and not steel, and one that requires the main caps to be machined flat so the girdle has the maximum clamping effect on the caps can add a small improvement, and have other benefits like dampening harmonics. But that's about all that can be expected from one.