I have modern 5.7 HEMI long block for sale....no intake, accessories, or front cover. The motor was a factory warranty for a bad bearing (my friend is a mechanic at the dealer). I bought it to use as a mock up for my project until I bought my 6.1 HEMI. The long block also has heads from a different motor...one of the heads has a collapsed valve seat.
The motor could be easily rebuilt or used as a mock up.
$400 obo