| 350 / 400 STANDARD FLAT TOP
These classic, race winning JE flat top pistons work with most aftermarket 23º heads. They have extra deep valve pockets and a low-friction skirt design.
These pistons are designed to use 1/16, 1/16, 3/16 rings or 1/16, 1/16, 3mm rings, see footnote J.
Includes:
Contact Reduction Grooves
Double Spiro Locks #927-042-CS
Double Pin Oilers
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350 Series
Std Bore: 4.000
Ring package designed for: 1/16, 1/16, 3/16 Rings |
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| Part # |
Cubic
Inches |
Bore |
Stroke |
Rod
Length |
Block
Height |
Compression
Distance |
 |
| Head Cubic Centimeters |
| 58cc |
64cc |
76cc |
| Compression Ratio |
|
|
Dome
Volume |
Gram
Weight |
Footnote |
Oversize |
|
| 181907 |
357 |
4.030 |
3.500 |
6.250 |
9.000 |
1.000 |
11.2 |
|
10.3 |
|
9.1 |
-5.0 |
369 |
A,B |
0.030 |
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| 181908 |
359 |
4.040 |
3.500 |
6.250 |
9.000 |
1.000 |
11.2 |
10.3 |
9.1 |
-5.0 |
370 |
A,B |
0.040 |
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| 181909 |
359 |
4.040 |
3.500 |
6.200 |
9.000 |
1.050 |
11.2 |
10.3 |
9.1 |
-5.0 |
379 |
A,B |
0.040 |
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| 181915 |
355 |
4.020 |
3.500 |
6.000 |
9.000 |
1.250 |
11.2 |
10.3 |
9.1 |
-5.0 |
397 |
A |
0.020 |
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| 181916 |
357 |
4.030 |
3.500 |
6.000 |
9.000 |
1.250 |
11.2 |
10.3 |
9.1 |
-5.0 |
399 |
A |
0.030 |
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| 181917 |
358 |
4.035 |
3.500 |
6.000 |
9.000 |
1.250 |
11.2 |
10.3 |
9.1 |
-5.0 |
403 |
A |
0.035 |
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| 181918 |
359 |
4.040 |
3.500 |
6.000 |
9.000 |
1.250 |
11.2 |
10.3 |
9.1 |
-5.0 |
406 |
A |
0.040 |
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| 181919 |
362 |
4.060 |
3.500 |
6.000 |
9.000 |
1.250 |
11.2 |
10.3 |
9.1 |
-5.0 |
412 |
A |
0.060 |
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| 207511 |
364 |
4.070 |
3.500 |
6.000 |
9.000 |
1.250 |
11.2 |
10.3 |
9.1 |
-5.0 |
416 |
A |
0.070 |
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| 181920 |
383 |
4.030 |
3.750 |
5.700 |
9.000 |
1.425 |
11.9 |
11.1 |
9.7 |
-5.0 |
424 |
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0.030 |
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| 181924 |
358 |
4.030 |
3.500 |
5.700 |
9.000 |
1.550 |
11.2 |
10.3 |
9.1 |
-5.0 |
439 |
A |
0.030 |
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| 181925 |
358 |
4.035 |
3.500 |
5.700 |
9.000 |
1.550 |
11.2 |
10.3 |
9.1 |
-5.0 |
442 |
A |
0.035 |
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| 181926 |
359 |
4.040 |
3.500 |
5.700 |
9.000 |
1.550 |
11.2 |
10.3 |
9.1 |
-5.0 |
449 |
A |
0.040 |
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| 181927 |
362 |
4.060 |
3.500 |
5.700 |
9.000 |
1.550 |
11.2 |
10.3 |
9.1 |
-5.0 |
459 |
A |
0.060 |
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350 Series
Std Bore: 4.000
Ring package designed for: 1/16, 1/16, 3.0mm Rings |
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| Part # |
Cubic
Inches |
Bore |
Stroke |
Rod
Length |
Block
Height |
Compression
Distance |
|
| Head Cubic Centimeters |
| 58cc |
64cc |
76cc |
| Compression Ratio |
|
|
Dome
Volume |
Gram
Weight |
Footnote |
Oversize |
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| 181910 |
355 |
4.020 |
3.500 |
6.125 |
9.000 |
1.125 |
11.2 |
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10.3 |
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9.1 |
-5.0 |
384 |
A,J,M |
0.020 |
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| 181911 |
357 |
4.030 |
3.500 |
6.125 |
9.000 |
1.125 |
11.2 |
10.3 |
9.1 |
-5.0 |
391 |
A,J |
0.030 |
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| 181912 |
358 |
4.035 |
3.500 |
6.125 |
9.000 |
1.125 |
11.2 |
10.3 |
9.1 |
-5.0 |
390 |
A,J,M |
0.035 |
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| 181913 |
359 |
4.040 |
3.500 |
6.125 |
9.000 |
1.125 |
11.2 |
10.3 |
9.1 |
-5.0 |
394 |
A,J |
0.040 |
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| 181914 |
362 |
4.060 |
3.500 |
6.125 |
9.000 |
1.125 |
11.2 |
10.3 |
9.1 |
-5.0 |
398 |
A,J |
0.060 |
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| 181911 |
383 |
4.030 |
3.750 |
6.000 |
9.000 |
1.125 |
11.9 |
11.1 |
9.7 |
-5.0 |
391 |
J |
0.030 |
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| 181913 |
385 |
4.040 |
3.750 |
6.000 |
9.000 |
1.125 |
11.9 |
11.1 |
9.7 |
-5.0 |
394 |
J |
0.040 |
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| 181914 |
388 |
4.060 |
3.750 |
6.000 |
9.000 |
1.125 |
11.9 |
11.1 |
9.7 |
-5.0 |
398 |
J |
0.060 |
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400 Series
Std Bore: 4.125
Ring package designed for: 1/16, 1/16, 3/16 Rings |
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| Part # |
Cubic
Inches |
Bore |
Stroke |
Rod
Length |
Block
Height |
Compression
Distance |
|
| Head Cubic Centimeters |
| 58cc |
64cc |
76cc |
| Compression Ratio |
|
|
Dome
Volume |
Gram
Weight |
Footnote |
Oversize |
|
| 242886 |
428 |
4.125 |
4.000 |
6.000 |
9.000 |
1.000 |
13.1 |
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12.2 |
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10.7 |
-5.0 |
391 |
B |
STD |
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| 194339 |
434 |
4.155 |
4.000 |
6.000 |
9.000 |
1.000 |
13.3 |
12.3 |
10.8 |
-5.0 |
407 |
B |
0.030 |
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| 194340 |
436 |
4.165 |
4.000 |
6.000 |
9.000 |
1.000 |
13.3 |
12.4 |
10.9 |
-5.0 |
411 |
B |
0.040 |
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| 207512 |
440 |
4.185 |
4.000 |
6.000 |
9.000 |
1.000 |
13.5 |
12.5 |
11.0 |
-5.0 |
420 |
B |
0.060 |
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| 181938 |
401 |
4.125 |
3.750 |
6.000 |
9.000 |
1.125 |
12.3 |
11.4 |
10.1 |
-5.0 |
418 |
B |
std |
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| 181939 |
405 |
4.145 |
3.750 |
6.000 |
9.000 |
1.125 |
12.4 |
11.5 |
10.1 |
-5.0 |
422 |
M,B |
0.020 |
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| 181940 |
407 |
4.155 |
3.750 |
6.000 |
9.000 |
1.125 |
12.5 |
11.6 |
10.2 |
-5.0 |
426 |
B |
0.030 |
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| 181941 |
409 |
4.165 |
3.750 |
6.000 |
9.000 |
1.125 |
12.5 |
11.6 |
10.2 |
-5.0 |
431 |
B |
0.040 |
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| 181942 |
380 |
4.155 |
3.500 |
6.000 |
9.000 |
1.250 |
11.7 |
10.9 |
9.6 |
-5.0 |
445 |
A |
0.030 |
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| 181943 |
381 |
4.165 |
3.500 |
6.000 |
9.000 |
1.250 |
11.7 |
10.9 |
9.6 |
-5.0 |
447 |
A |
0.040 |
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| 181944 |
380 |
4.155 |
3.500 |
5.850 |
9.025 |
1.425 |
11.7 |
10.9 |
9.6 |
-5.0 |
472 |
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0.030 |
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| 181944 |
407 |
4.155 |
3.750 |
5.700 |
9.000 |
1.425 |
12.5 |
11.6 |
10.2 |
-5.0 |
472 |
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0.030 |
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Did you know? - we also offer a complete line of pistons for this particular application in our SRP product line? Click here to check them out. |
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- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.
Tech and Installation Tips
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Valve Relief Diagram