use whatever you can for a smallblock chevy as stated have your crank double keyed and get an ati supr damper for a mopar with a chevy bolt pattern for pulley you can buy the lower pulley with 2 v belt pulley grooves for alt and power steering if you like like brad said brackets need to be overkill thick or you may have belt shredding issues we haven`t gotten far enough for pics so can`t help much there