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| FLYWHEELS QUICK
REFERENCE CHART |
|
Part Number |
Outside Diameter |
Year |
Crank Flange Bolt Pattern |
Clutch Diameter |
Starter Ring Gear Teeth |
Notes |
|
14085720 |
12-3/4" |
1955-85 |
3.58" |
10.4" |
1 5 3 |
Lightweight nodular iron flywheel. Weighs approximately 15
pounds. For two-piece crank seal. |
|
3986394 |
14" |
1970-80 |
3.58" |
11" |
1 6 8 |
For externally balanced 400ci small-block V8 only. Use with
balancer P/N 6272225. |
|
3991469 |
14" |
1955-85 |
3.58" |
10.4", 11" |
1 6 8 |
For two-piece crank seal. |
|
10105832 |
1 4 " |
1986-up |
3.00" |
11", 11.85" |
1 68 |
For one-piece crank seal. |
|
14088646 |
12-3/4" |
1986-up |
3.00" |
10" |
1 5 3 |
Lightweight nodular iron flywheel. Weighs approximately 16
pounds. For one-piece crank seal. |
|
14088650 |
12-3/4" |
1986-up |
3.00" |
10.4" |
1 5 3 |
Standard weight flywheel for one-piece crank seal. |
| CHEVROLET
SMALL-BLOCK V8 AND V6/90DEG AUTOMATIC TRANSMISSION FLEXPLATES
QUICK REFERENCE CHART |
|
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|
Part |
Outside |
|
Crank Flange |
Converter |
Starter Ring |
|
|
Number |
Diameter |
Year |
Bolt Pattern |
Bolt Pattern* |
Gear Teeth |
Notes |
|
471598 |
14" |
1970-85 |
3.58" |
10.75", 11.50" |
1 6 8 |
For internally balanced engine with two-piece
crank seal. |
|
471578 |
14" |
1970-80 |
3.58" |
10.75", 11.50" |
1 6 8 |
For externally balanced 400ci small-block only.Use
with balancer P/N 6272225.
|
|
471529 |
123/4" |
1969-85 |
3.58" |
9.75", 10.75" |
1 5 3 |
For internally balanced engine with two-piece
crank seal. |
|
14088765 |
123/4" |
1986-up |
3.00" |
10.75" |
1 53 |
For one-piece crank seal. Used with 5.7-liter
HO engine. |
|
12554824 |
1 4 " |
1986-up |
3.00" |
11.50" |
1 68 |
Heavy-duty flexplate with increased thickness
for one-piece crank seal. |
|
14088761 |
1 4 " |
1986-up |
3.00" |
10.75", 11.50" |
1 6 8 |
For one-piece crank seal. |
|
Torque converters for TH350 and TH400 transmissions
are produced with both 10.75" and 11.50" diameter
converter bolt patterns. To identify the correct pattern, measure
from the converter center to an attaching bolt hole and then
multiply this dimension by 2. |
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