Trouble getting a slant six in the car

Thanks man. Me and my brother were given these cars when we were little and they just sat out the back yard for years. When we were little my mom and dad each had a dart swinger. My dads was a 71 and my moms was a 72 so he worked in that stuff a lot. Put a 340 in my moms, but it had cooling issues after that lol. But as we got older he didn’t wanna do that stuff anymore or teach us much so they’re cars just sat there. Now that we’re young adults we’re trying to figure this stuff out so it means a lot that guys like you guys in the forum are so willing to help out. I really want my kids to experience these old cars like we did someday
You obviously have the drive and ambition and interest and great attitude. All of that will get you a long way.