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| 27.720 Corvettes were built in 1966. 9.958
Coupe and 17.762 Convertibles. |
| The Vehicle Identification Numbers, VIN were
194376S100001 through 194376S127720 |
| For convertibles, fourth digit is a 6 |
|
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| Type |
Basic |
Basic |
Basic |
Basic |
| Cubic Inch |
327 |
327 |
427 |
427 |
| HP @ RPM |
300 @ 5000 |
350 @ 5800 |
390 @ 5200 |
425 @ 5600 |
| Torque RPM |
360 @ 3200 |
360 @ 3600 |
460 @ 3600 |
460 @ 4000 |
| Comp. Ratio |
10.5:1 |
11.0:1 |
10.25:1 |
11.0:1 |
| Bore / Stroke |
4.00 x 3.25 |
4.00 x 3.25 |
4.25 x 3.76 |
4.25 x 3.76 |
| Carburator |
4bbl Holley |
4bbl Holley |
4bbl Holley |
4bbl Holley |
| In Manifold |
N/A |
N/A |
N/A |
N/A |
| Valve Lifters |
N/A |
N/A |
N/A |
N/A |
| Exhaust |
N/A |
N/A |
N/A |
N/A |
| Oil Capacity2 |
4 Qt |
4 Qt |
5 QT |
5 QT |
| Spark Plugs |
Type 44 |
Type 44 |
Type 43N |
Type 43N |
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| 2. Add 1 Qt if you put a
new oil filter. |
|
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| 3858174 |
327 CID |
| 3892657 |
327 CID - Late production |
| 3869942 |
427 CID |
| 3855961 |
427 CID - Early production |
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| 3782461 |
327 CID - 300 HP / 350 HP |
| 3873858 |
427 CID - 425 HP / 450 HP |
| 3872702 |
427 CID - 390 HP |
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| 327 Cubic
Inch Engine |
CODE |
| 350 HP - Manual transmission - Air injection |
HD |
| 300 HP - Manual transmission |
HE |
| 300 HP - Manual transmission - Air injection |
HH |
| 300 HP - Automatic transmission |
HO |
| 350 HP - Manual transmission - Power steering |
HP |
| 300 HP - Automatic transmission - Air injection |
HR |
| 350 HP - Manual transmission |
HT |
| 350 HP - Manual transmission - Air injection - Air condition
- Power steering |
KH |
| 427 Cubic Inch Engine |
CODE |
| 425 HP - Manual transmission |
IK |
| 390 HP - Manual transmission |
IL |
| 390 HP - Manual transmission - Air injection |
IM |
| 425 HP / 450 HP - Manual transmission |
IP |
| 390 HP - Automatic transmission |
IQ |
| 390 HP - Automatic transmission - Air injection |
IR |
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| Ratio
and Type |
CODE |
| 3.36 |
AK |
| 3.08 Positraction |
AL |
| 3.36 Positraction |
AM |
| 3.55 Positraction |
AN |
| 3.70 Positraction |
AO |
| 4.11 Positraction |
AP |
| 3.08 Positraction |
AR |
| 3.70 with 4-speed |
AS |
| 3.08 Positraction with 427 CID |
AT |
| 3.36 Positraction with 427 CID |
AU |
| 3.55 Positraction with 427 CID |
AZ |
| 3.70 Positraction with 427 CID |
FA |
| 4.11 Positraction with 427 CID |
FB |
| 4.56 Positraction with 427 CID |
FC |
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| Color |
CODE |
| Tuxedo Black |
900 |
| Ermine White |
972 |
| Rally Red |
974 |
| Nassau Blue |
976 |
| Laguna Blue |
978 |
| Trophy Blue |
980 |
| Mosport Green |
982 |
| Sunfire Yellow |
984 |
| Silver Pearl |
986 |
| Milano Maroon |
988 |
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| © Tommy Ledberg |