GENERAL SPECIFICATIONS
|
Model Designation:
Commander
V8: 56B
Power Hawk V8: 56B
Parkview V8: 56B
|
| Wheel base:
Commander & Parkview: 116-1/2; Power Hawk: 120-1/2 |
| Valve Location: In
head |
| Bore and
Stroke: 3-9/16
x 3-1/4 |
| Piston displacement, Cubic
Inches: 259.2 |
| Compression
ratio: 7.80 |
| Maximum
Brake Horsepower: 170
@ 4500 RPM |
| Maximum
Torque Lbs.Ft. @ RPM: 260
@ 2800 RPM |
| Normal
Oil Pressure Pounds: 40 |
TUNE UP SPECIFICATIONS
|
| Spark Plug
Make: Champion H11 |
| Spark Plug
Gap, Inch: .035 |
| Firing
Order: 18436572 (front
to rear: left bank: 1-3-5-7; right bank 2-4-6-8) |
| Ignition
Timing: IGN on Vib.
Damp. |
| Engine
Idle Speed, RPM: 500 |
| Cylinder
Head Torque Lbs.Ft.: 60 |
| Compression
Pressure & Cranking Speed: 120
Min. |
| Voltage & Polarity: 12
volts, negative ground |
PISTON AND RING SPECIFICATIONS
|
Fitting
Pistons with Scale:
Shim Thickness to use: .002
(1 inch wide feeler); |
| Pounds
Pull on Scale:: 11
to 16 |
Ring End
Gap: (Fit rings in tapered
bores for clearance shown in tightest portion of
ring travel.)
Compression: .008
Oil: .008 |
| Clearance
in Groove: Compression:
.002-.0025; Oil: .0015-.002 |
| Wristpin
Diameter, Inch: .875 |
VALVE SPECIFICATIONS
|
Operating
Clearance:
Intake:
.024 Hot Exhaust: .024 Hot |
| Valve Seat
Angle, degrees: 45 |
Valve Timing: (BTDC
= before top dead center; ATDC = after top dead
center)
Intake
opens: 11 degrees BTDC
Exhaust
Closes: 14 ATDC |
Valve Spring
Pressure Pounds at Inches Length:
Inner
Spring: 50 @ 2-1/32 |
| Valve Stem
Clearance: Intake: .0015-.0035; Exhaust:
.0015-.0035 |
| Clearance
for Timing Intake: .030 |
ENGINE BEARING SPECIFICATIONS
|
Connecting Rod Bearings:
Journal
Diameter, Inches: 1.99925-2.00025
Bearing Clearance, Inch: .0005-.00215
Rod End Play, Inch: .007-.012
Rod Bolt Tension: Lbs.Ft.: 52-54 |
Main Bearings:
Journal
Diameter, Inches: 2.4995-2.5000
Bearing clearance: .0006-.0027
Shaft End Play: .003-.006 (Thrust
on front bearing)
Main Bolt Tension: Lbs.Ft.: 88-93 |
CAPACITY DATA
|
Cooling
System:
Without
heater: 17-1/4 quarts
With
heater: 18-1/2 quarts
|
| Fuel Tank: 18
gallons |
| Engine
Oil: 5 quarts |
| Transmission: w/out
overdrive: 2.4 pint; with overdrive: 3.4 (Classic:
3.7); w/Auto. trans.: 9 quarts |
| Rear Axle: 3
pints |
DELCO-REMY DISTRIBUTOR SPECIFICATIONS
|
| Distributor part number: 1110864
(distributor rotates counter-clockwise when viewed
from top) |
| Cam Angle,
degrees: 26-33 |
| Breaker Point opening, Inch: .016 |
| Condenser
Capacity: .20-.25 Mfds. |
| Breaker Arm Spring Tension: 17-21
Oz. |
Centrifugal
Advance: (degrees at
RPM of distributor)
Advance starts:
1 degrees @ 400
Full Advance: 12 degrees @ 1125 |
Vacuum
Advance Data:
Inches of Vacuum
to Start Plunger Movement: 4-6
Inches of Vacuum for Full Plunger Travel:
10-1/2 - 11-1/2
Maximum Vacuum Advance, Dist. Degrees:
8 |
DELCO-REMY GENERATOR SPECIFICATIONS
|
| Generator
Number: 1102003
(generator rotates clockwise, 6 volts, positive
ground) |
| Generator
output: 30 amps @
2150 RPM |
| Brush Spring
Tension: 28 oz. |
| Field Current: 1.48
- 1.62 at 12 volts |
DELCO-REMY
REGULATOR SPECIFICATIONS
|
| Regulator
Number: 1119123 |
Cutout
Relay:
Voltage
to close points: 12.2
Reverse Current to Open Points:
Armature Air Gap: .020 |
| Voltage
Regulator Setting: 14.3
volts |
| Current
Regulator Setting: 30
amps |
| Current
and voltage armature air gap, Inch: .075 |
DELCO-REMY STARTING MOTOR SPECIFICATIONS
|
| Part number: 1107650,
1107651 (starter rotates clockwise) |
| Bush Spring
Tension, Ounces: 35 |
| No Load
Test: 75
amps, 10.3 volts @ 6900 RPM |
| Torque
Test: 435 Amps, 5.8
volts, Torque, Lbs.Ft.: 10.5 |
WHEEL ALIGNMENT SPECIFICATIONS
|
Caster,
Degrees
Limits: -1
to -2-1/2
Desired: -1-3/4 |
Camber,
Degrees
Limits: 0
to +1
Desired: +1/2 |
| Toe-In,
Inches: 1/16 to 1/8 |
Toe-Out
on Turns, Degrees: (If
toe-out is incorrect, when other adjustments are
correct, look for bent steering arms.)
Outer wheel: 20
Inner Wheel: 22-1/2
to 23-1/2 |
Kingpin
Angle, or Steering Axis Degrees: (If
king pin or spindle support angle are incorrect,
but camber is correct, look for bent suspension
arms or steering knuckle support)
6 @ 0 Camber |
