Best Year for Mopar 360 LA Engines

The reality is regardless of what you read there is no better year. If you have a block that's not cracked, and you're building for less than 425hp and stock stroke, any year is fine. If you're building a 4" stroke, or something that will exceed the 425hp, you should get any year sonic tested to make sure it's not core shifted. If it's thick enough, it's the best year. Some 1971 blocks were cast with 340 cores. Providing those cores were set by someone that paid any attention, the blocks should be thicker cylinder walls. that guy didn't work much from what I've seen/tested. That's for early '71 castings only. By '72 360s had thier own cores. Again, if there's no core shift, any block will be thick. However Mopars really suck for casting core shift and about 50% require sleeves to correct one or two cylinders worth of problems for high hp packages.