I recently purchased a 1970 scout 800, build page here: http://www.binderplanet.com/forums/index.php?threads/self-sabotage-1970-800a.139661/. I have the AMC i6 and assumed it was the 232 because that is what comes in scout 800’s but I removed the oil pan and the crank has 258 written on in grease pen. How do I differentiate between the 232 and the 258? The only marking I can find cast into the block is 3199962, which can be found on both the 232 and 258. Has someone swapped out the motor or just the crank? Can a 258 crank fit in a 232? What other mods would be required? I’m so confused, any guidance would be appreciated.