The Official Studebaker Reference Guide 1955 Lowey Commander Hardtop President Coupe Starting Serial Number: 16G6 Champion... G-1316501   Ser. 16G8 Commander... 8380601   Ser. 6H President... 7150001 Location: On plate on left front door post. Starting Motor Serial Number: 16G6-Champion... 1138001   16G8-Commander... V-312701   6H-President... P-101 Location: 6 and straight 8 - Upper left side of cylinder block.   V8 - Top side front of cylinder block. Production Information: Champion 50,368   Commander 58,792   President 24,666 General Specifications: Model Wheelbase (In.) Tread (front) Tread (rear) Length Width Height Shipping Weight (lb.) Tire Size (In.) 16G6-Champion n/a n/a n/a 204 n/a n/a n/a 6.40-15 16G8-Commander n/a n/a n/a 240 n/a n/a n/a 6.70-15 6H-President n/a n/a n/a 206 n/a n/a n/a 7.10-15 General Engine Specifications: Model # of Cyl - Bore & Stroke # of Main Bearings Type of Lifter Used Displacement Taxable H.P. Developed H.P. Max. Torque Compression Oil Pressure Champion 6 Cyl. 6 - 3 x 4 3/8 4 Mech. Adj. 185 21.6 101 @ 4000 152 @ 1800 7.5 40 Commander - V8 * 8 - 3 9/16 x 2 13/16 5 Mech. Adj. 259 40.6 140 @ 4500 202 @ 2800 7.5 40 President - V8 8 - 3 9/16 x 3 1/4 5 Mech. Adj. 259 40.6 185 @ 4500 258 @ 3000 7.5 40 * After engine numbers 8397201; 8843001; 8958101; the engine was changed to the same engine of the President, except HP is only 162@4500 & torque is 250@2800. Engine Tune-Up Specifications: Model Plug Type Plug Gap Dwell Point Gap Ign. Timing Compression Inlet Tappet (hot) Exhaust Tappet (hot) Fuel Pressure Min. Engine Idle 16G6 Champion J7 .030 39 .020 2B 140 .016 .016 4 3/4 550 16G8 Commander H11 .035 31 .013 8B 130 .026 .026 4 3/4 550 6H President H11 .035 31 .013 4B 130 .026 .026 4 3/4 550 Table of Contents | Chapter 5 - Studebaker Cars - Postwar