70 Z28 Brake booster
 

Iso 1970 z28 brake booster for a third week of june car.

What is the number stamped on the tab

164. I believe It's a aftermarket one in there now.

I think I have a most of a 70 Camaro booster. Let me look.....Joe

164 would be a very good julian date for an 06C car...the number on the back of the tab for 1970 Camaro would be 0426. If that is the coding on your booster, I'd say at least the back 1/2 is original.

Found it. It's a 0426 but the date code is 37. I little too early....Joe

My 04B 70Z has a 30 date, but they ran these in batches and FIFO and JIT wasn't yet in vogue so IMO a 37 may not be out of reach.

Same number as 70 FB

Yes it is the correct back half 0426.

The front half of yours is the Delco Moraine on the lower left upside down looking at it from the front? Mine is on the right looking from the front and is upright.