Hello, you have a 4-53 Detroit Diesel blower there. It pumps 139 cubic inches per revolution. These work great on old Ford flatheads, and engines up to about 350 c.i.d.

We build components for the blower you have, and can locate items from time to time for small block Chevy's and such that would work with this blower. Right now, we do not have any Chevy part for this blower (at the time of this post).

We do however build billet bearing plates and carb adaptors for this blower and 6-53 blowers.

Anyone who wants to know what size they may have, can visit our site also and click on the "Blowers - 101" link in the menu.

I have a page there that I built to help out with figuring out sizes without going through the part number maze GM created with all of their blowers.

Here is my site

http://www.fordflathead.com

Good usefull info for all blowers of all sizes there.

Thanks, Lain