Atomic Four Engine - Parts

Tune-up Parts and Common Spares

SPARK PLUGS

gap: 0.035 Hotter plugs
Champion J8C or RJ8C RJ12C
AC #R45 or #M45
Autolight 295 308
NGK B6S or BR6S


WIRES

Belden 700708 (kit, put on your own ends)
Belden 700999 (custom wire set at Annapolis NAPA store)
Carol 32570 (82 Datsun)
Cooper Automotive "PowerPath" #700705 (longest wire is a slight stretch).
Pep Boys Auto Parts #1924 (for all 1974 Volvo 4 cyl. engines)

DISTRIBUTOR CAP

Delco Distributor Prestolite Distributor
Standard Motor Products DR-437 Standard Motor Products AL-25
Borg Warner C167 Echlin AL91
Delco D322R
GM 1962446
GP DR93
Echlin RR181

ROTOR

Delco Distributor Prestolite Distributor
Standard Motor Products DR-314 Standard Motor Products AL-102
Delco 423R Echlin AL-58
GM 800056
GP DR106
Borg Warner D152P
Echlin RR182R

CONDENSOR

Delco Distributor Prestolite Distributor
Standard (Blue Streak) DR-90X Standard (Blue Streak) AL-106
Borg Warner G126 Echlin AL-38
Delco D203
GM 1928111
GP DRC3S
Echlin RR176

POINTS

timing: just starting to open at TDC
Gap: 0.025 0.018 - 0.020
dwell: 31 to 34 degrees 38 degrees
Delco Distributor Prestolite Distributor
Standard (Blue Streak) DR-2240X Standard (Blue Streak) AL5661X
Delco D108P Echlin CS-709
GM 1954557
Borg Warner A109V
GP DR695
Echlin CS788P

Water pump impeller (for Oberdorfer M202-3):
Oberdorfer #B6593
Barco #815
Sherwood #295628

General Specifications

Model Designation UJ, UJR
Engine Type Four Cylinder, Vertical, 4 Cycle, L-Head
Bore and Stroke 2 9/16" x 3 1/8"
Total Piston Displacement 64.46
Compression Ratio 6.3:1
Engine Rotation Counter-Clockwise (From Flywheel end)
Firing Order No. 1 on Flywheel End 1-2-4-3
Reduction Gear Ratio 2.04:1
Maximum Operating Angle Approximately 15 degrees
Fuel Regular Grade Gasoline
Lubrication Oil SAE 30

@ RPM 600 1000 1500 2000 2500 3000 3500
Brake Horsepower: 5 7.3 11.9 16.2 20 25 30

Suggested Oil Levels Installation Angle Amount Full Amount Low
(Quarts) 0 degrees 5.75 5
5 degrees 4.75 4
10 degrees 3.5 2.75
14 degrees 2.75 2.25