When I get back to Detroit I'll pull out some of my factory service manuals I've had forever and even show you what they state. I really don't know if every 68-71 340's had forged but the ones I took apart did. That's one reason you could rev them to 6500 all day long. I beat the crap out of them back then and never had a piston problem. Spun a few bearings but that was about it. Burt a valve on one with over 200k on it. Yea I maintained them well. Still have a few left, thank goodness. ps the new forged pistons are a lot better than 1970 TRW slugs they will not knock. But it's your stuff do it your way and have fun. Up, up and away! 340's and Hemis forever!
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