Back in the late seventies, I had an old 413 block, a friends son wanted to take on an engine building project for a vocational mechanics class. I gave him the block, he & his instructor figured out how large to bore it to put non Mopar pistons in it. After they finished it, the son brought the engine back to me as they built it. We put it in an old 64 Satellite that I had & drove it around, it was a screamer, much more so than the old low compression 413's. With the dads blessing, I sold him the car & I believe he still has it. I see it occasionally, I just don't know where the son lives now & unfortunately his dad passed away so I have no way of contacting him. To this day, I still don't know what all they put in the old 413 block.
