A Studebaker Reference Guide

1955 Truck
E Series

1955 truck.jpg - 4863 Bytes


Truck Model Engine Used Engine Model Crankcase Cap. Qts. Cooling Cap. Qts.
E5 own 1E 5 10 1/2
E6 own 4E 6 15 1/2
E7 own 2E 6 20 1/4
E10 own 1E 5 10 1/2
E11 own 4E 6 15 1/2
E12 own 2E 6 20 1/4
E13 - 21 own 2E 6 20 1/4
E13 - 31 own 2E 6 20 1/4
E14 - 21 own 4E 6 15 1/2
E14 - 31 own 4E 6 15 1/2
E15 - 21 own 1E 5 10 1/2
E15 - 31 own 1E 5 10 1/2
E16 own 4E 6 15 1/2
E16B own 4E 6 15 1/2
E17 own 4E 6 15 1/2
E17B own 4E 6 15 1/2
E28 own 3E 6 20 3/4
E28B own 3E 6 20 3/4
E38 own 5E 6 20 3/4
E38B own 5E 6 20 3/4

Serial Number Plate Location: On seat riser, left side

Engine Number Location: 6 cyl - At the top left side front corner of the cylinder block. 8 cyl - On top, front end of cylinder block next to oil filler tube.

Production Information: n/a

General Engine Specifications:
Engine Model # of Cyl - Bore & Stroke Displacement Compression Max Brake H.P. Max Torque H.P. Oil Pressure Lbs.
1E 6 - 3 x 4.375 185 7.50 92@3800 152@1800 40
2E 8 - 3.5625 x 2.812 224 7.50 140@4500 202@2800 40
3E, 5E 8 - 3.5625 x 3.250 259 7.50 141@3800 225@2400 40
4E 6 - 3.3125 x 4.750 246 7.50 106@3400 204@1400 40

Engine Tune-Up Specifications:
Model Firing Order Spark Plug Type Spark Plug Gap Valve Seat Angle Intake Tappet Exhaust Tappet Valve Spring Pressure lb @ inch
1E 153624 Champ. J7 .030 45 .018C Note#1 .018C Note#1 130 @ 1 3/4
2E 18436572 Note#2 Champ. H10 .035 45 .024H .024H 110 @ 1 11/16
3E, 5E 18436572 Note#2 Champ. H10 .035 45 .024H .024H 110 @ 1 11/16
4E 153624 Champ. J7 .030 45 .018C .018C Note#1 130 @ 1 3/4
Note#1: If valve covers are marked .016, disregard and set at .016
Note#2: Cyl numbering: Left bank: 1-3-5-7, right bank: 2-4-6-8.

Piston, Rings & Bearings:
Model Wristpin Dia. Piston Clearance Comp. Ring Gap Oil Ring Gap Crankpin Dia. Rod Bearing Clearance Main Journal Dia. Main Bearing Clearance Crank Endplay
1E .750 .002 Note#3 .007 .007 1.81175 - 1.81275 .0005 - .002 3.0623 - 3.0628 .0005 - .0025 .003 - .006
2E .875 .002 Note#3 .008 .008 1.99925 - 2.00025 .0005 - .002 2.4995 - 2.5000 .0005 - .0025 .003 - .006
3E, 5E .875 .002 Note#3 .008 .008 1.99925 - 2.00025 .0005 - .002 2.4995 - 2.5000 .0005 - .0025 .003 - .006
4E .875 .002 Note#3 .008 .008 2.18675 - 2.18775 .0005 - .002 2.8745 - 2.8750 .0005 - .0025 .003 - .006
Note#3: Using a 1" feeler a pull of 11 to 16 lbs on a spring scale should be necessary to withdraw the feeler past the piston.

Engine Tightening Specifications:
Torque specifications are for clean and lightly lubricated threads only. Dry or dirty threads produce increased friction which prevents accurate measurement of tightness.
Model Spark Plug Cyl Head Bolts Intake Manifold Exhaust Manifold Rocker Arm Shaft Rocker Arm Cover Connecting Rod Cap Main Bearing Cap Flywheel to Crankshaft Vibration Damper or Pulley
1E, 6-170 Note#4 25-30 46-50 25-30 25-30 None None 28-32 88-93 33-35 130-140
1E, 6-170 Note#5 25-30 46-50 25-30 25-30 13-17 20 in. lbs. 28-32 85-95 33-35 130-140
1E, 6-185 25-30 46-50 18-22 18-22 None None 50-55 88-93 33-35 130-140
2E 25-30 55-65 26-30 25-30 55-60 8-10 in. lbs. 52-54 85-95 33-35 130-140
3E, 5E 25-30 55-65 26-30 25-30 13-17 8-10 in. lbs. 52-54 85-95 33-35 130-140
4E, 6-245 25-30 55-65 25-30 25-30 None None 52-54 85-95 33-35 130-140
All measurements are in ft. lbs. unless otherwise listed.
Note#4: Side valve engine.
Note#5: Overhead valve engine.

Table of Contents | Chapter 6 - Studebaker Trucks