Bracket is made from billet alum. and is .500" thick which mounts off the two 7/16" bolt holes on the front of the block. Typically on a BBC you only need one side for crank trigger ignition so when ordering please specify driver or passenger side from drop down menu.
The driver and passenger side does have a mount to allow the use of a timing pointer.
Fits Donovan, KB 500, World, CN, Dart and most aftermarket BBC engine blocks. Brackets are sold separate.
RBS can supply a complete set up if the customer needs for crank trigger ignition.
Racer must choose trigger mount for the 1, 3, 5, 7 or 2, 4, 6, 8, side of the engine and aluminum or black anodized finish from the drop down menu.