GENERAL SPECIFICATIONS
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| Model Designation: Invicta V8 - 4600; Electra V8 - 4700; Electra V8 "225" - 4800 |
| Wheel base: Invicta: 123; Both Electras: 126.3 |
| Valve Location: In
head |
| Bore and
Stroke: 4.1875
x 3.64 |
| Piston displacement, Cubic
Inches: 401 |
| Compression
ratio: 10.25 |
| Maximum
Brake Horsepower:
325 @ 4400 |
| Maximum
Torque Lbs.Ft. @ RPM:
Le Sabre V8 w/Performance Option: 445 @ 2800 |
| Normal
Oil Pressure Pounds: 40 |
TUNE UP SPECIFICATIONS
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| Spark Plug
Make: AC 44S |
| Spark Plug
Gap, Inch: .032 |
| Firing
Order: 12784563 (front
to rear: Left bank: 2-4-6-8; Right bank: 1-3-5-7) |
| Ignition
Timing: Mark: 12 BTDC
Mark Location:
Vib. Damper [Note: When setting timing, adjust idle to 400 RPM so that vacuum and centrifugal advance mechanisms are not in operation.] |
| Engine
Idle Speed, RPM:
485 |
| Voltage & Polarity: 12
volts, negative ground |
PISTON AND RING SPECIFICATIONS
|
Fitting
Pistons with Scale:
Shim thickness .003
Pounds on Scale: 7 to 13 |
Ring End
Gap:
Compression: .015
Oil: .015
[Note: Fit rings in tapered bores for clearance given in tightest portion of ring travel] |
| Wristpin
Diameter, Inch: .9995 |
VALVE SPECIFICATIONS
|
Operating
Clearance:
Intake: 0 Exhaust:
0 |
| Valve Seat
Angle, degrees: 45 |
Valve Timing: (BTDC
= before top dead center; ATDC = after top dead
center
Intake
opens: 33 degrees
Exhaust
Closes: 44 ATDC |
Valve Spring
Pressure Pounds at Inches Length:
Inner
Spring: 76 @ 1.35; Outer Spring: 96
@ 1.16 |
| Valve Stem
Clearance: Intake: Top .001-.003; Bottom .0025-.0045; Exhaust:
.003-.005 |
ENGINE BEARING SPECIFICATIONS
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Connecting Rod Bearings:
Journal
Diameter, Inches: 2.249-2.250
Bearing Clearance, Inch: .0002-.0023
|
Main Bearings:
Journal
Diameter, Inches: 2.498-2.499
Bearing clearance: .0005-.0021
Shaft End Play: .004-.008 (Thrust
on Bearing No. 5)
|
CAPACITY DATA
|
Cooling
System:
Without
heater:
16.5
With heater: 18.5 |
| Fuel Tank: 20
gallons |
| Engine
Oil: 4 quarts (5 quarts with filter change) |
| Automatic Transmission: 12 quarts |
| Rear Axle: 6-1/2
pints |
1960 Buick 364 (210 hp) V8 Engine Specs
1960 Buick 364 (235 hp) V8 Engine Specs
1960 Buick 364 (250 hp) V8 Engine Specs
1960 Buick 364 (300 hp) V8 Engine Specs
1960 Buick 401 (325 hp) V8 Engine Specs
1960 Buick 364 & 401 V8 Engine Specs:
Distributor Specs
1960 Buick 364 & 401 V8 Engine Specs:
Generator Specs
1960 Buick 364 & 401 V8 Engine Specs:
Regulator Specs
1960 Buick 364 & 401 V8 Engine Specs:
Starting Motor Specs
1960 Buick 364 & 401
Engine Tightening Specs
1960 Buick 364 & 401
Wheel Alignment Specs
Return to Buick Engine Specs Index
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