Installs on the long snout of the dry sump LS7 crankshaft to provide the correct offset spacing for using a standard LS oil pump, the stock style wet sump front cover and stock front accessory drive components. When using this spacer, make sure to use the correct balancer that will matches the alignment of the rest of your front accessory drive components.
Installs between the harmonic balancer and the crankshaft bolt.
NOTE: Will NOT work with the LS9 crankshaft.
Use ONLY with GM LS7/LS3 Dry Sump Crank Bolt or the ARP LS7 Crank Bolt.