talked with the company today that rebuilt the motor, the build sheet is gone, and this is the email i got back from the manager, he says

That engine was sold as a 73-80 truck engine with a cast crank externally balanced. The blocks were all the same so the 69 was probably all we had at the time. Also that engine was purchased in April of 2007.

so if the motor was built as a truck motor, what will i need to change out to make it a car motor?
i have a buddy that has a set of trw forged pistons 10 to 1 and i have a forged crank, wld it be better for me to swap all this out?

thanks