1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 22Get this manual
Specifications ALPINEVALMONT
1973 MODEL4
VAlMONTAlPINE
440R Valmont Two 67.5mm 61mm 436.6cc 10: 1
440ER Valmont Two 67.5mm 61mm 436.6cc 10:1
440R Alpine Two 67.5mm 61mm 436.6cc 10:1
440ER Alpine Two 67.5mm 61mm 436.6cc 10:1
640ER Alpine Two 76mm 70mm 635.1cc 9:1
Noof Cylinders Bore Stroke Displacement Compression Ratio :Carburetor (Tillotson) Starting Overall length Overall Width Height wo Windshield Weight (Jbs) Bearing area Ground Pressure p.s.i Track Width StdGear Ratio