world alum. block

on the main studs in the aluminum block, are they are the same as the stock block. and is there a part number to just replace the studs without the nuts?
cant find it in the search, i know i have read it before. thanks

call a.r.p.800-826-3045looks like# 145-5603

try this https://board.moparts.org/ubbthreads/show...amp;Search=true