[KevinW]

I have these parts I picked up at last years swap meet. I know the alt bracket on the left is for a SB and I am assuming the smog bracket on the left is a SB as well. But the right side parts are what I am not sure of. The smog pump is dated 71, (white fan). Since the parts are bigger than the SB, I assume they are for a BB? If so, are they Camaro parts or some other car? thanks

 

[Unreal]

Kevin,
Not positive, but I think the one smog pump bracket on the left is for b/b. I'm going from memory, but I think the back part on mine is more trapazoidal like that one, rather than curved like the one on the right. However, I don't remember any holes in the bottom. I'll check when I get home tonight. Whichever is correct, it was the same for several years. The alternator bracket on the right is a b/b for sure. It was a 69 only as it had the insert spacer for the smog bolt. Later years had an offset stamped into the bracket similar to the s/b alternator bracket on the left.

You didn't ask, but b/b smog bracket=$25-35. b/b alternator bracket= $60-80.

 

[KevinW]

Gary, thanks! Yes, the BB stuff will go on ebay eventually I took the smog bushing out of the BB one to save for my SS.

 

[rszmjt]

Kevin, Actually the brackets on the rite side are Big Block, and the ones on the left are S.B. The B.Block lower bracket is still availiable from GM with a change up part number 14015390, it is $15.09 retail and $11.47 wholesale. the one you have is a early issue probably 69/70, it can be recognized by the square nut on the back of the bracket. Later releases have a hex nut welded in place.
FYI the small block lower bracket is a 71 up. It is recognized by the hole in the lower section. 69/70 S.B. Brackets did not have this hole.
Hope this helps. Mike.

 

[Unreal]

Kevin, Taking the bushing hurts the value of the b/b one, but enhances the value of the one you really care about.
Mike, Thanks for getting it straight. You've heard about old age and memory!
I also think the later b/b alternator bracket, with the offset is still available. I never checked, but I seem to see quite a few "NOS" ones with later GM packaging on ebay.

 

[KevinW]

Thanks guys, but I got a little confused about which one is the "lower" bracket (lower alt or lower smog?) Mike on the bracket with the holes, I am assuming you meant the lower smog bracket? If so, I have 2 of them and will see if the other one has the holes too. Thanks!

 

[rszmjt]

Kevin, By Lower, I actually meant the smog bracket, I should have clarified. The lower smog bracket with out the holes is the hard one to find it seems, guess a person could allways weld up the holes to make it correct for a 69. The holes by the way were to bolt in a clip that retained the positive battery cable on later cars.
Hope this helps. Mike.

 

[KevinW]

Mike, that does help! Unfortunately, both of the lower smog brackets I have have the holes. I guess I will get the welder out