| Base Number |
1639HC |
| Bore (in) |
3.8 |
| Bore (mm) |
96.5 |
| Bore Diameter |
3.8 |
| Compression Ratio |
8 |
| Crown (cc) |
+15.5cc |
| Crown Type |
DISH |
| Eng. Disp. In. |
307 |
| Eng. Disp. Liters |
5 |
| Engine Family |
Oldsmobile V8 |
| Engine Manufacturer |
Oldsmobile |
| Hazardous Material Code |
N |
| Includes Ring Set |
3800AM8.020 |
| Life Cycle Status Code |
Available to Order |
| Lock |
128 |
| Oe Assembly |
22527480R, 22527479L |
| Oil Ring Thickness |
0.1875 |
| Oversize |
0.02 |
| Oversized |
Yes |
| Oversizes |
STD .020 .030 .040 .060 |
| Pin Configuration |
Offset |
| Pin Number |
0908x300B |
| PIN TYPE |
Floating |
| Piston Head Type |
Dish |
| Piston Material |
Cast 390 Hypereutectic Alloy |
| Piston Pin Outside Diameter |
0.98 |
| Piston Rings Included |
Yes |
| Ring Pack |
5/64, 5/64, 3/16 |
| Second Compression Ring Thickness |
0.0781 |
| Sold As |
Complete Piston and Ring Kit |
| Top Compression Ring Thickness |
0.0781 |
| Top Land |
0.24 |
| Year From |
1985 |
| Year Range |
1985-1990 |
| Year To |
1990 |
| GTIN |
00800745301253 |
