This is nice. In the Buick racing world many people have used block girdles with great success. It's allowed people to push the stock block WAY past the design expectations. There are people pushing their stock blocks close to where my stage motor is running.

The Buick design is different in that all caps are tied together and also into the oil pan mating surface.

I assume to install this 6.5L version you need to pull the motor? Guess it would be a pipedream to be able to install it from under the truck.

Thanks,
Art.