1935 Duesenberg Model SJN

The most desirable of all the Model Js is the SJN which combines the supercharged SJ engine with the lower and wider bodywork from the JN. Only two of these models were made and each is the most celebrated of the type.

Our feature example is J564 and was built by Rollston as their flagship offering. It is similar to the four other Rollston Convertible Coupes but is unique with its four external door hinges.

At the time of writing J564 is a thoroughly original car showing just 16,500 miles on the odometer. It has been carefully used by William Parfet and displayed all the major American Concours.

The second SJN is J533 which is a long-time exhibit of the Nethercutt Collection. In 2011 it debuted from an extensive restoration that changed the outward color from black to silver. It later won Best of Show at the 2013 Amelia Island Concours d’Elegance.

Story by Richard Michael Owen

1935 Duesenberg Model SJN Gallery

See full 1935 Duesenberg Model SJN Gallery

 

In Detail

type	Limited Production Car
built at	USA
coachbuilder	Rollston
production	2
engine	Lycoming Straight-8
position	Front, Longitudinal
aspiration	Centrifugal, Gear Driven Supercharger
valvetrain	DOHC, 4 Valves per Cyl
displacement	6878 cc / 419.72 in³
bore	95.25 mm / 3.75 in
stroke	120.65 mm / 4.75 in
power	238.6 kw / 320 bhp @ 4200 rpm
specific output	46.53 bhp per litre
torque	576.2 nm / 425 ft lbs @ 2400 rpm
redline	5200
body / frame	Custom Body over Steel Frame
driven wheels	RWD
front brakes	Drums w/Hydrualic Assist
rear brakes	Drums w/Hydrualic Assist
front wheels	F 48.3 x 17.8 cm / 19 x 7 in
rear wheels	R 48.3 x 17.8 cm / 19 x 7 in
steering	Ross Cam and Lever
f suspension	Rigid Axle w/Semi-Elliptic Springs, Double-Acting Hydraulic-Lever Shock Absorbers
r suspension	Live Axle w/Semi-Elliptic Springs, Double-Acting Hydraulic-Lever Shock Absorbers
transmission	Warner Hy-Flew 3-Speed Manual
gear ratios	2.485:1, 1.397:1, 1.000:1