Originally Posted by cepx111
LOL....sure guirldes dont add strength and stability, take one off a high horse power small block ford and see how fast it splits the block in half.
I bet all them guirdles everyone runs on their rocker arms arent doing $hit either.
You're comparing apples to bananas. The SBF is weak to begin with. The BBC is not.
So sure, reinforcing a poorly designed item is necessary, hence why we run girdles on the valve train. Properly designed valve train, such as shaft rockers don't require additional assistance.
So, in the end, it all comes down to the part you're talking about.
I've seen quite a few high end motors, Chevy's, Olds, Pontiac, Hemis, BBF, etc, and the only thing I've ever seen that needed a lower end girdle was a SBF. Kind of indicates that in a high horsepower setting, that block is the only one that needs additional strength.
Will adding a girdle to your BBC hurt? Probably not, so long as it's in place when you line hone it. If it's installed after the fact, and tweaks the studs, then you may be doing just as much harm as help.