INFORMATION
CONCERNING
MAINTENANCE
289
AND 427 V.8. HIGH PERFORMANCE ENGINES
289 HIGH PERFORMANCE ENGINE SPECIFICATIONS
GENERAL
EXHAUST VALVES
Type
8-cylinder 90° Vee,
Material
21-4N Forged Steel
Overhead Valve Aluminized
Displacement 289 Cubic Inches
Overall Length 4·863"
Bore and Stroke 4·00" x 2·87"
Overall Head
1'442"-1·4S7"
Compression Ratio 10·S:1
Diameter
Brake Horsepower 271 @ 6000 r.p.m.
Angle of Seat and 44°
(
Maximum Torque
312Ibs./ft.
@
Face
3400 r.p.m. Lift 0·477'
Valve Lifters
Solid
Spring Pressure and
83·S-92·S
Ibs.
@
Carburettor One 4-venturi
Length
1·77"(valve closed)
Fuel Super Premium 234·5-259·Slbs. @
Cylinder Block Precision Cast Iron 1'32" (valve open)
Material
PISTONS
Cylinder Head Precision Cast Iron
Material Material
Extruded Alumin-
Oil Filter
Rotunda 6000 Mile
ium Cam Ground
Type, Part Number
Weight
21·09 oz.
CIAZ-6731-A
(RI-A) PISTON RINGS
No.1 Compression
Cast Iron Alloy,
CRANKSHAFT
Straight Face,
Material Precision-Molded
Chrome Plated
Alloy Cast Iron
No.2 Compression
Cast Iron Alloy,
Main Bearings
(S)
Steel-Back Copper-
Straight Face, Sera-
Lead Alloy
per Groove, Phos-
Replaceable Inserts
ph ate Coated
Main Bearing Jour-
2·2482"-2,2490"
No.3 Oil Control
Multi-Piece, Two
nal Diameter
Rails and One Spa-
Thnust Beari ng No.3
cer Expander, Steel
Crankpin Journal 2'1228"-2'1236"
Rails, Chrome Pla-
Diameter
ted, Oxide Coated
Expander-Blued
CAMSHAFT
Steel
Width-No.1 0,0774"-0'0781 "
Material
Precision-Molded
No.2 0,0930"-0'0940"
Special Alloy Iron
Gap-e-Nos. 1 and 2
0'010"-0'020"
Bearings
(S)
Steel-Back Babbitt
No.3
0'0 IS"-0'055"
Inserts
Camshaft Gear Cast Iron
PISTON PINS
Material
Type
Press-Fit in Rod
Material
S.A.E. SOlS Alloy
VALVE SYSTEM
Steel, Heat Treated
Operating Tappet
0'018 (hot). Hot
Length
3,010'-3'040'
Clearance
setting to be made
Diameter
0,9119"-0,9124"
after a minimum of
CONNECTING RODS
30 minutes
@
1200
r.p.rn. (no load)
Material
S.A.E.I 041-Forged
Intake Valve Opens
0'008@ 46° BTDC
Steel, with separate-
Intake Valve Closes 0·010 @ 84° ABDC
ly forged Caps
Duration
324'
Weight 20'776-21'OS9
(
Exhaust Valve Opens
0'008 @ 94° BBDC
Length S'IS35-S'IS65
Exhaust Valve Closes
0'010 @ 36° ATDC
Duration 324'
CONNECTING ROD BEARINGS
Valve Opening 96°
Material Steel-Back Copper-
Lead Alloy Inserts
INTAKE VALVES
Overall Length 0-716"-0'726'
Material
S.A.E. 1047 Alum-
Clearance Limits 0'0009'-0'0029"
inized Steel
Overall Length 4'863"
GENERAL
Overall Head
1'662"-1·667" Firing Order I-S-4-2-6-3-7-8
Diameter
Valve Clearance
0'022 cold-0'OI8 hot
Angle of Seat
44'
Carn Lobe Life 0'298
Lift
0·477"
(normal)
Spring Pressure and
83·S-92·Slbs.
@
Carn Lobe Wear O'OOS
Length 1·77" (valve closed)
Limit
234·S-2S9·Slbs.
@
Valve Lift (theor-
0'477
1·32" (valve open)
etical zero lash)
52
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