We warned you about more unusual crankshaft info. The crank was drilled to accept a 425 Olds flexplate, and DMR is having custom 12-pound flywheels made by ATI to DMR specs for 330 cranks that have been swapped into 350 blocks. While all of this may sound like a headache, rest assured that DMR has already done the homework to make this easy. By using the DMR parts, you'll end up with a well-engineered, affordable package that will work great in street applications. By avoiding the need for a custom crank and using a combination of factory Olds, Chevy, and custom parts, the rotating assembly ends up being much less expensive in the long run. Building an Olds 350 will never be as easy as building a Chevy 350, but that's why they're so cool. A select few builders have really tapped into the power potential of the small-block Olds; luckily Dick is one of them.