Bracket is made from billet alum. and is .500" thick which mounts off the three pan rail holes on the front of the block. Holes in bracket are .500" to fit with bearing support or starter bracket dowel on the standoffs.
Typically on a 8.3 you only need one side for crank trigger ignition so the bracket has been mirror machined so you can flip it from side to side or if running dual magnetos purchase two brackets. Bracket is designed to be used with 7.00" in diameter crank trigger degree rings.
Fits Arias or Miner 8.3 Hemi engine blocks. Brackets are sold separate.
RBS can supply a complete set up if the customer needs for crank trigger ignition.