Team Buick     Buick
  Forums | Classifieds   




 
 
General Specifications for the 1966 Buick 300 and 340 Cubic Inch Engines The following information has been directly complied from original Buick service manuals for the respective year of vehicle manufacture. These specifications should also be correct for the 1966 model year.

        contributed by Aaron

Bolt Torque Specifications
AREA: Torque Lb. Ft.
Spark Plugs 25-35
Crankshaft bearing caps to cylinder block 95-120
Connecting rods 30-40
Cylinder head to cylinder block 65-80
Harmonic balancer to crankshaft 140 MINIMUM
Fan driving pulley to harmonic balancer 18-25
Flywheel to crankshaft (both auto and manual) 50-65
Oil pan to cylinder block 09-13
Oil pan drain plug 25-35
Oil pump cover to timing chain cover 08-12
Oil pump pressure regulator retainer 25-30
Oil screen housing to cylinder block 06-09
Oil pan baffle to cylinder block 09-13
Oil galley plugs 20-30
Filter assembly to pump cover 10-15
Timing chain cover to block 17-23
Water pump cover to timing chain cover 06-08
Fan driven pulley 17-23
Thermostat housing to intake manifold 17-23
Intake manifold to cylinder head 45-55
Exhaust manifold to cylinder head 10-15
Carburetor to intake manifold 10-15
Fuel pump to cylinder block 17-23
Motor mount to cylinder block 50-75
Fuel pump eccentric to timing chain sprocket to camshaft 40-55
Rocker arm cover to cylinder head 03-05
Rocker arm shaft bracket to cylinder head 25-35
Delcotron (alternator) bracket to cylinder head 30-40
Delcotron (alternator) bracket to water pump timing chain cover 18-25
Delcotron (alternator) mounting bracket thru Delcotron to cylinder head at pivot location 30-40
Starting motor to block 30-40
Starting motor brace to block 09-13
Starter motor brace to starting motor 09-13
Distributor hold down clamp 10-15
Manual lower flywheel housing plate (inspection cover) 09-13
Flywheel housing to cylinder block 30-40
Fuel filter to cylinder head 10-15
300-340

GENERAL SPECIFICATIONS

  Wildcat 310
(300 Cu, In.)
Wildcat 350
(340 Cu In.)
Wildcat 375
(340 Cu. In)
Code number prefix ML MA MB
Export code number prefix MM MC N/A
Engine type 90° V8 90° V8 90°V8
Bore and stroke 3.750 x 3.400 3.750 x 3.850 3.750 x 3.850
Piston Displacement 300 Cu. In. 340 Cu In. 340 Cu. In.
Carburetor type 2 barrel 2 barrel 4 barrel
Compression ratio 9.0:1 9.0:1 10.25:1
Gasoline requirements regular regular premium
Brake horsepower @ RPM 210/4600 220/4000 260/4000
Maximum torque @ RPM 310/2400 340/2400 365/2800
Taxable horsepower 33.748 45.0 45.0
Octane requirements motor 85 85 90
Octane requirements research 93 93 99
Cylinder numbers front to rear
Left bank 1-3-5-7 1-3-5-7 1-3-5-7
Right bank 2-4-6-8 2-4-6-8 2-4-6-8
Firing Order 1-8-4-3-6-5-7-2 1-8-4-3-6-5-7-2 1-8-4-3-6-5-7-2



Piston and pin specifications:
Piston
Material Cast aluminum alloy
Type Divorced skirt
Finish Cam ground
Piston Pins
Material Extruded SAE-1018
Type Pressed in rod

Crankshaft specifications:
Material Pearlitic malleable iron
Bearings 5 replaceable steel backed
Bearing material #1, #2, #3, and #4 M/400 #5 M/100 Durex
Bearing taking thrust load #3

Camshaft specifications:
Material Cast alloy iron
Bearings Steel backed Babbitt
Number of bearings 5
Drive Chain
Number of links 54
Crankshaft sprocket Sintered Iron
Camshaft sprocket Nylon coated aluminum

Lubrication system specifications:
Type of lubrication
Main bearings Pressure
Connecting rods Pressure
Piston pins Splash
Camshaft bearings Pressure
Timing chain Splash and nozzle
Cylinder walls Splash and nozzle
Oil pump type Gear driven
Normal oil pressure 33lbs. @ 2400 RPM
Oil pressure sending unit Electrical
Oil intake Stationary
Oil filter system Full flow
Filter type Throw away element and can
Crankcase capacity
Less filter 4qts.
With filter 5qts.

ENGINE DIMENTIONS AND FITS
General:
Piston Clearance limits
Top land .0265-.0345
Skirt- Top .0005-.0011
Skirt- Bottom .0005-.0021
Ring groove depth
#1 compression ring .1855-.1930
#2 compression ring .188-.1955
#3 Oil ring .188-.1955
Ring width
#1 compression ring .0785-.0789
#2 compression ring .0770-.0780
#3 Oil ring .1810-.1870
Ring gap
#1 compression ring .010-.020
#2 compression ring .010-.020
#3 Oil ring .015-.035
Piston pin length 3.060
Diameter of pin .9394-.9397
Clearance
In piston .0001-.0004
In rod .0007-.0015 Press
Direction and amount off set in piston .040 Toward high thrust side
*All measurements are in inches unless otherwise specified

Camshaft specifications:
Bearing journal diameter
#1 1.785-1.786
#2 1.755-1.756
#3 1.725-1.726
#4 1.695-1.696
#5 1.665-1.666
Journal clearance in bearings .005-.0035 (#2, #3, #4, & #5)

Connecting rod specifications:
Bearing length .737
Bearing clearance (Limits) .0020-.0023
End play- Total for both rods .006-.014

 

Connecting rods:
Material Pearlitic malleable iron
Rod bearing Removable steel backed M/400

Ring specifications:
#1 compression Cast iron-chrome plated
#2 compression Cast iron-lubrited
Oil control Steel-uncoated
Oil ring expander Steel humped ring
Ring locations Above pin

Valve specifications:
Intake valve material SAE 1041 steel
Exhaust valve material GM-N82152 (21-4N)
Valve lifter mechanism Hydraulic
Valve spring Single helical

Cooling system specifications:
System type Pressure
Radiator cap relief pressure 15 PSI
Thermostat Choke type opening at 180°
Water pump
Type Centrifugal
GPM @ RPM 14 @ 100
Drive V-Belt
Bearings Double row
By-pass recirculation type External

Cooling system capacities:
  (300 Cu. In.) (340 Cu. In.)
With heater 12.7qts. 12.7qts.
W/O heater 12.2qts. 12.2qts.
With air conditioning (all except 300 station wagon) 14.0qts. 14.7qts.
With air conditioning (Station Wagon) 14.7qts. 14.7qts.

Fan diameter and number of blades:
Less AC 18” x 4
With AC 18” x 7
Fan Drive
Less AC Water pump shaft
With AC Torque and temperature sensitive clutch

Valve system specifications:
Rocker arm ratio 1.6 to 1
Rocker arm clearance on shaft .0017-.0032
Valve lifter diameter .8422-.8427
Valve lifter clearance in crankcase .0015-.003
Valve lifter leak down rate 12 to 60 sec. In test fixture
Intake valve
Head diameter 1.8175-1.8075
Seat angle 45°
Stem diameter (top) .3415-.3412 (bottom) .3405
Clearance in guide .0012-.0032 & .0003 max taper
Valve spring
Valve closed- Pounds @ length 64 ± 5 @ 1.727
Valve open- Pounds @ length 164 ± 6 @ 1.340
Exhaust Valve
Head diameter 1.380-1.370
Seat angle 45°
Stem diameter (top) .3402-.3412 (bottom) .3397-.3407
Clearance in guide (top) .0015-.0035 (bottom) .0021-.004
Valve spring
Valve closed- Pound @ length 64 ± 5 @ 1.727
Valve open- Pound @ length 164 ± 6 @ 1.340

Crankshaft specifications:
Endplay at thrust bearing .004-.008
Main bearing journal diameter, 300 2.4995
Main bearing journal diameter3 340 2.9995
Crankpin journal diameter 2.0000
Main bearing overall length
#1 .864
#2 .864
#3 1.057
#4 .864
#5 .864
Main bearing to journal clearance .0004-.0015

Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
340 3.750 3.850 6.387 1.6590 0.9740 4.240
350 3.800 3.850 6.358 1.6514 0.9870 4.240


» Google!

 
copyright 2006, TeamBuick.com all right reserved
Team Buick - Forum - Classifieds - Journals - Garage - Archive - Top