I'm not saying it's impossible, but the engine would have had to have build from an 86 or latter block (when they converted from the 2 to 1 piece seal) and would have to use a corresponding crank designed for the 1 piece seal. As I said, "as far as I know" no one is making a stroker crank designed for the 1 piece seal. Short of pulling the pan, list the casting number of the block, from there it shoul easy to determine which seal you will need, and what procedure you will have to do to change it.