2 1/2 inch heat riser

[DonSSDD]

I found 2 used units, one is for the driver side, one for the passenger side I assume since they are opposite to each other. What GM had a heat riser on the driver side?

JUst curious.

Don

[DonSSDD]

Here is a picture- they are identical castings, but the flapper etc is just mounted on the other side.

http://pic20.picturetrail.com/VOL164/2040090/3952594/263750893.jpg