R3 Pully

The answer is in the first part of this article from:

R3 Option: Special production order from Paxton (Granatelli brothers).

304.5 CID, 9.5-1 compression, Dual belt driven Paxton supercharger (8 in. crank pulley, 4 in. blower pulley), special cam, heads, pistons, tube connecting rods, cast exhaust headers, non-sealed AFB carb in a large cast pressure box. This car also had solid inner suspension bushings for tighter handling. Only 9 were sold as production orders, however there are cars in which these engines were installed afterwards by owners, etc. There was an interesting option offered with these, called a Carb-u-meter, which was installed in the dash console. This included a vacuum guage and 2 carburator adjustment screws to fine tune the engine while driving. There were only 9 made, all 64's, the first was R5089. They seldom change hands, but we hear $30,000 to $50,000 figures mentioned. However, Paxton Products had several of these blueprinted, hand-assembled R3 engines left over when Studebaker ceased production. They sold them retail for about $1660 for a couple of years. There are probably 20 or so factory-built R3 engines running around in various Avanti, Hawk and Lark bodies. There are probably another 50 or so engines which have been built up to R3 specs and use the R3-style carb box. Nine Production R3 built & delivered - serial number r5089 turquoise 4 spd, r5237 black 4 spd,r5394 white4 spd,r5532 turq 4 spd r5546 gold 4 spd,r5593 grey auto,r5625 black auto, r5642 white auto,r5643 white auto. The last 2 cars were in fact the last Avantis built by Studebaker in Nov 1963. Joe Erdelac owned the last one and it is in a museum collection after he donated it. At some point in my collection of stuff, I have seen the original locations (Destinations) of shipping for these cars, that i,s the dealer location, R5089 is in the basement of Joliet Studebaker where it's been sitting apart for over 20 years. The owner has acquired nearly another complete car in NOS parts to restore the R3, but has not done anything. He offered the car to me two years ago, than backed out when his son objected to the sale. (BTW, it was built with a 4:88 rear !) The following are the original locations of the r-3 Avantis: ( R5642 - Moline IL) ( R5089 - Downers Grove, IL) ( R5593 - Yuma, AZ) ( R5237 - Seattle, WA) ( R5394 - Kingston, PA) ( R5546 - Ft. Wayne, IN) ( R5643 - Jackson, MI) ( R5625 - Toledo, OH ) ( R5532 - Vauxhall, NJ ) The one Daytona (64vi9585) was sent to Albany NY