Machining a block, how it´s going???

yep exactly.. the 358 crank in the 360 wil hit piston skirts.. the 360 pistons har slightly shorter .. the 360 piston is also lower deck due to the decreasing compression after year 69 - 70.. i used the 360 .030 piston in my twin turbo 340 some years ago.. unforged for better handling of heat.. they worked super no problems at all, until the 904 tranny spragg gave up.. mmm with an old broken 360 crank radiused to 340 mains ofc.. yea the 6.25 rod lenght is same on all the mopar sb.. so swaping 3.58 , 4 or 3.31 stroke pistons wil make a big bang in any case lol