Maybe you can answer this one for us as we’re pretty stumped: How does one reliably and cleanly remove the second temperature sensor plug on the side of the driver’s-side head on a Chevy small-block crate motor? You know, the one with the 8mm square recess? (We found a way around it, but we’d really like to find a better solution for next time.)
Some Chevys use both sensor ports, and some use just one or the other, so the crate motors ship with a plug in there. Actually, if you’re trying to swap engines between different Chevys, you might run into the same issue needing to remove the plug to install a sensor.
The problem is that we can’t find anyone who makes an 8mm square drive socket or driver of any kind. We’ve seen solutions online such as using RoboGrip pliers (didn’t work) or even driving in a (rare) 3/8″ to 5/16″ socket adapter (nope), but there’s got to be a clean way to do this.
Let us in on a good solution — or source for an 8mm square (not triple-square) driver — and we’ll drop you a tool from the pile in the mail.