RE Pistons?

["MO ( Steve Mick)" <micher@xxxxxxxxxxxxxxx>]

For some reason I can not get a reply to go through, so I have to send a new
message. To my best knowledge ( and I sure don't know it all ! )  I can't
bore a 413 to a 440 piston.  I can go to 426, but cylinder walls would be
thinner than I would be comfortable with.  I haven't measured bore yet, but
there is no oversize stamp on top of my pistons. Engine reported to have
only 68,000 miles.. And they are dished pistons which are very low
compression
 Can someone tell me if the Mopar factory used cast or forged pistons on new magnum 383 and 440? What is your opinion on cast pistons  below 10:1 comp. And 6000 RPM ? Thanks for your input......................MO........SW IOWA


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