Chevrolet Corvette 1963 Repair & Tune-Up Manual page 101

Ring Gap Specifications
All measurements are given in inches
Engine
Displace-
ment (cu
Top
Year In.)
Compression
327
1963- 0 . 0 1 3-
68 0.023
350
1969- 0 . 0 1 0-
0 . 0 2 0 ®
71
1 9 6 5 - 396, 0 . 0 1 0-
74 427,
0.020
454
350
1973- 0 . 0 1 0-
76 0.020
350
1977
0 . 0 1 0-
0.020
1978- 305, 0 . 0 1 0-
84 350 0.020
® 250, 300 hp 350 cu in.
Top—0.013-0.023
2nd—0.013-0.025
® 250, 255 hp 350 cu in.—0.013-0.023 ®
180 hp—0.013-0.025 ® 185,195 hp—
0.010-0.025
Ring Side Clearance
Specifications
All measurements are given in inches
Engine
Displace-
ment (cu. Top
In.) Compression
Year
327
1963- 68 0.0012-
0.0032®
1969- 77 305, 0.0012-
350
0.0032
1978- 84 305, 0.0012-
350 0.0032
1965- 74 396,
0.0017-
427, 0.0032
454
©250, 275hp327cu. in.:
Top—0.0012-0.0027
2nd—0.0012-0.0032
© For 1969-73 engines only
2. Remove the two solenoid retaining
screws.
3. Twist the solenoid clockwise to remove
the solenoid flange key from the keyway in
the housing. Remove the solenoid.
4. To reinstall the unit, pkce the return
spring on the plunger and pkce the solenoid
body on the drive housing. Push the solenoid
inward and turn counterclockwise to engage
ENGINE AND ENGINE REBUILDING
Bottom
Oil
Compression
Control
SMALL-BLOCK ENGINES
0 . 0 1 3- 0 . 0 1 5-
1963-
0.025 0.065
0.013- 0 . 0 1 5-
0 . 0 2 5 ®
0.065
0 . 0 1 0- 0.010-
0.020
0.040
0 . 0 1 3- 0 . 0 1 5-
0.025© 0.065
1981
0 . 0 1 0- 0.015-
0 . 0 2 3 ® 0.065
1982-
0 . 0 1 0- 0 . 0 1 5-
84
0 . 02 3 ® 0.065
1965-
Bottom Oil
Compression Control
0.0012- 0 . 0 0 0-
0.0050
0.0027®
0.0012- 0.000-
0.0027 0.0050®
0.0012- 0 . 0 0 2-
CD Range is from production minimum to service maxi-
0.0032 0.0080
mum © Limited production L88 engines only
0.0017- 0 . 0 0 5-
0.0065
0.0032
the flange key. Install and tighten the sole-
noid retaining screws and the screw and
washer which secure the strap terminal.
Design
The success of the Corvette is largely due to
the lengthy option lists that permit an owner
to literally tailor his car to a specific type of
driving or competition. For this reason, the
engines that power the 1963-1984 models
Piston Clearance Specifications
Displacement Year
(cu. in)
327
305, 350 (exc. '69
350 hp, LT1 or L82
engs.)
350 (1969
only)
350 (LT1 &
L82)
350
350
Engine
BIG-BLOCK ENGINES
396 425
74
427
390, 400
430®
454
ENGINE MECHANICAL
95
pistoiMo-Dore
Advertised Clearance
Horsepower (In.)®
0.0005-
all 80 0.0025
various 0.0007-
0.0027
350 0.0020-
0.0036
various 0.0036-
0.0061
all 0.0046-
0.0061
0.0025-
all
0.0045
0.0036-
0.0065
0.0024-
0.0045
0.0058-
0.0080
0.0040-
435
0.0065
0.0018-
245,
0.0035
275
345,
0
360,
.
390
0
024-
0.0049
0
460
.
0040-
0.0065