BDS 4.250" blower snout coupler. Snout coupler is made from billet heat treated steel and can be used with 5/16" bolts on a standard GM gear or the GM 8V gear pattern. The bore for the gear register is 1.250" and the overall length is 4.250". This coupler can be used with all 1.125" 48 spline blower drive shafts.
Finish is black oxide and grade 8 coupler bolts are included.