N Gin E - Chevrolet 1973 Overhaul Manual

GENERAL DATA:
Type
Displacement (cu. in.)
Horsepower @ rpm
Torque @ rpm
Bore
Stroke
Compression Ratio
Firing Order
CYLINDER BORE:
Diameter
Production
Out of
Round
Service
Thrust Side
Produc­
tion
Taper Relief Side
Service
PISTON:
Production
Clearance
Service
PISTON RING:
Top
C
Produc­
Clear­
0
tion
ance 2nd
M
Groove
P
R Service
E
Top
S
Produc­
S
tion
Gap 2nd
I
0
Service
N
Production
Groove
Clearance
0 Service
I
L Production
Gap
Service
PISTON PIN:
Diameter
Production
Clearance
Service
Fit in Rod
In Line
250 292
100 @ 3600 120 @ 3600
175 @2000 215 @ 2000
3-7/8
3.53 4.12
8.25:1
8.0:1
1 - 5 - 3 - 6 -2 -4
3.8745 -3.8775
.0005 Max.
.0005 Max.
.0005 - .0015 .0026 - .0036
.0025 Max. .0045 Max.
.0012 - .0027
.0020 - .0040
.0012 - .0032
.010 - .020
.005 Max. .005 - .0055
ENGINE
SECTION 6
307
115 @3600 130 @4000
205 @ 2000 220 @ 2200
3-7/8
3.25
8.5:1
1 - 8 - 4 - 3 - 6 - 5 - 7 - 2
3.8745 -3.8775
.002 Max.
.0005 Max.
.005 Max.
.0012 - .0018
.0032 Max.
.0012 - .0027
.0012 - .0032
Hi Limit Production + .001
.010 - .020
Hi Limit Production + .01
.005 Max.
Hi Limit Production + .001
.015 - .055
Hi Limit Production + .01
.9270 - .9273
.00015 - .00025
.001 (Max.)
.0008" - .0016" Interference
SPECIFICATIONS 39
V8
350 454
155 @4000 240 @ 4000
255 @ 2400 355 @ 2800
4 4 1/4
3.48 4
8.25:1
8.5:1
3.9995 -4.0025 4.2495 -4.2525
.001 Max.
.001 Max.
.0007 - .0013 .0018 - .0028
.0027 Max. .0035 Max.
.0012 - .0032 .0017 - .0032
.010 - .020
.013 - .025
.002 - .007 .0005 - .0065
.010- .030
.9895 - .9898
.00025 - .00035
OVERHAUL MANUAL
250 @ 4000
365 @ 2800