Measure your existing pins as accurately as possible and use those measurements to order your new pins. They should be easy to match up that way. If not, hit up a local Napa. They have the most detailed specification records when it comes to selling their parts. They should be able to help.
Don't listen to Luk. Use the pins.
The pins you linked to are what I used in my Ford Racing billet steel flywheel on my 5.0 truck. They're good quality pins. Well made. Not sure if they'll fit your application though.
GB