BBC unblown crank mount starter bracket assm. This bracket assm. allows you to put the starter on board and crank one or even two engines locked crank to crank. The bracket is made from billet alum. and uses struts to attach to the engine block with billet alum. standoffs spacing out the starter face plate giving the starter perfect concentricity to the crankshaft for a quick and easy start. Includes mounting hardware for the block, heat treated engine starter jaw, and jaw spacer. This is perfect for injected motors with no supercharger and where weight savings are a must. Fits 396, 402, 427, 454 and most other aftermarket big block chevy engine blocks. Specify dampner or crank hub when ordering. RBS can set up for crank trigger ignition system using this bracket. Bracket is made by RCD.