Originally Posted by lt1silverhawk
Thanks for the response. So you answered the main question, and that is all the companies did always use the Ford blocks as the foundations. The different displacements and power outputs is to be expected.
Since you did bring it up, what is the standard angle for the Ford blocks, vs the oddball 30 degrees (I hope I worded all of that correctly)
Also, which parts will usually not
When you get into FAMILYS of blocks and different displacements, you get into casting differences - such as cylinder walls and crankshafts. Then there are accessory holes and possibly transmission bell housings. What you need to do is pick an engine home vehicle then go from there.