http://kb-silvolite.com/forged.php?action=search&mfg=CHRYSLER&EngSize=390&RodLen=6.123

these are forged ...can be found on ebay for just over 350 a set...

Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)