69 z/28 heatriser
 

What is the GM part number for the exhaust heat riser valve for a 69z/28? thanks

I have it listed in my notes as 3887023. Maybe somebody can confirm this. It's always nice to have a few opinions just to make sure.

Yes,#3887023.Used on nearly everything notable back then. :burnout:

Thanks

Here's a couple pics of mine. Oct 68 build 69 Z.

You can't rely on the number cast on the weight to definitively identify a heat riser. That weight was used on some big block heat risers too. Maybe not all of them, but some.