This is a nice pair of used aluminum spacers for all Corvair Rochester carburetor models H and HV for all years 1960 through 1969, primary and secondary. They replace the plastic ones that were added to all engines in 1962. They were found on some 1961 engines for unknown reasons, and it is likely that these are the survivors from those years. They are 1/16" thicker than the plastic ones and come in at 1/4". They provide that slightly taller intake for a slight improvement in flow and cooling and are a for sure recommendation for folks who like to race or autocross.

I am providing a set of 4 gaskets for an easy installation. 

Shipping is your choice at checkout. These come with a lifetime warranty, of course. You get 2 spacers and 4 gaskets when you select "1" at purchase. If you have a 140 engine, just select "2".