1970 Dart Swinger FINALLY UNDERWAY

Now that I've got more room in the garage I spent a little time tonight tearing down the engine. Later on I'll be uploading some concepts I've drawn up for a front air dam/diffuser that will blend into the valence, since I'm trying to build this for pro-touring/autocross.

Questions though, does anyone have any information on my block casting number? It's a 360-3 which from what I understand is somehow different from the regular 360's

Got a real great picture of the cylinders, you can really see the crosshatch on all 8 check it out!!

One of the pistons has some unusual wear on off the sides of the skirt, you can see it on the cylinder walls as well. It's smooth and not scored but it looks odd to me. What could have caused this?

In good news I have one of the "CFD" (Central Foundry Division) casting cranks, which from what I understand is a better casting than the other foundry chrysler sourced their cranks from.





Main bearings are nice and clean, normal wear pattern.





Heres that piston I was mentioning, again ideas why it was marked like that?