Top upper alternator bracket-is original 1 yr only 1970 Big Block-Chevelles-Novas-Camaros etc-$70 Second picture is a close up of this 1970 bracket Bottom upper alternator works for many various years and is N.OS and for Big blocks $60 Lower big block alternator bracket is N.O.S in gm packaging $45 Shipping Extra Keep on Cruising! Dave
Lower is #14015389 the NOS upper I bought from Gm years ago and never used-should fit 68-75 the part tag is gone-hope this helps.
Keep on Cruising!
Dave
Some 1970 big blocks had the hole, some didn't. I think the solid ones are tougher to find. A buddy punched a hole in his non-hole bracket, devaluing it.
The solid ones are one year only 1969 big block-I had it on my original 69 BB camaro-i know all chevelles -camaros-novas big block had the hole-in 1970-
Keep on cruising!
Dave