[Martyn L. Schorr]

Hi:
The simple answers to your complex question: Except for rare situations, all Baldwin-Motion cars started out being ordered with big block engines. If you brought a car to Motion Performance for a big-block conversion or for a new big-block engine, choice would be made based on customer needs, budget and Joel Rosen's recommendations. That means anything from a stock/tuned big-block to an L88. Motion Performance was a very busy speed shop, lots of cars getting new street and race engines.
Hope this helps,
Marty