351W FLAT TOPS
These pistons are designed to be compatible with nitrous applications, and will accommodate larger valves and long duration, tight lobe separation cams. All block deck heights have been adjusted to reflect zero deck clearance and precision CNC ring grooves accept 1/16, 1/16, 3/16 rings.
Includes:
Pin #912-2750-14-51S (123g), note D
Pin #927-2750-15-51S (130g), note C
Double spiro locks (#927-042-CS)
Contact Reduction Grooves
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351W SERIES
Std Bore: 3.900"-5.7L, 4.000"-6.0L
Ring package designed for: 1/16, 1/16, 3/16 Rings
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| Part # |
CID |
Bore |
Stroke |
Rod
Lgth. |
Block
Ht. |
Comp.
Ht. |
| Head Cubic Centimeters |
| 56cc |
60cc |
64cc |
| Compression Ratio |
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Dome
Vol. |
Gram
Wt. |
Footnote |
Oversize |
Recom.
Ring Set |
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351W STROKER
Std Bore: 3.900"-5.7L, 4.000"-6.0L
Ring package designed for: 1/16, 1/16, 3/16 Rings
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| Part # |
CID |
Bore |
Stroke |
Rod
Lgth. |
Block
Ht. |
Comp.
Ht. |
| Head Cubic Centimeters |
| 56cc |
60cc |
64cc |
| Compression Ratio |
|
Dome
Vol. |
Gram
Wt. |
Footnote |
Oversize |
Recom.
Ring Set |
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| 188705 |
406 |
4.020 |
4.000 |
6.250 |
9.500 |
1.250 |
12.9 |
12.3 |
11.7 |
-5.0 |
434 |
M,C |
0.020 |
J10008-4020-5 |
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| 188704 |
408 |
4.030 |
4.000 |
6.250 |
9.500 |
1.250 |
12.9 |
12.3 |
11.7 |
-5.0 |
438 |
C |
0.030 |
J10008-4030-5 |
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| 170232 |
408 |
4.030 |
4.000 |
6.200 |
9.480 |
1.280 |
12.9 |
12.3 |
11.7 |
-5.0 |
464 |
C |
0.030 |
J10008-4030-5 |
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| 232459 |
410 |
4.040 |
4.000 |
6.200 |
9.480 |
1.280 |
12.9 |
12.3 |
11.7 |
-5.0 |
472 |
C |
0.040 |
J10008-4040-5 |
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| 170233 |
393 |
4.030 |
3.850 |
6.200 |
9.480 |
1.355 |
12.5 |
11.9 |
11.3 |
-5.0 |
482 |
C |
0.030 |
J10008-4030-5 |
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SVO/DART BIG BORE RACE BLOCKS
Std Bore: 4.125
Ring package designed for: 1/16, 1/16, 3/16 Rings
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| Part # |
CID |
Bore |
Stroke |
Rod
Lgth. |
Block
Ht. |
Comp.
Ht. |
| Head Cubic Centimeters |
| 56cc |
60cc |
64cc |
| Compression Ratio |
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Dome
Vol. |
Gram
Wt. |
Footnote |
Oversize |
Recom.
Ring Set |
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| 232474 |
428 |
4.125 |
4.000 |
6.200 |
9.480 |
1.280 |
13.5 |
12.8 |
12.2 |
-5.0 |
490 |
B,C |
STD |
J10008-4125-5 |
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| 207419 |
427 |
4.125 |
4.000 |
6.125 |
9.475 |
1.350 |
13.5 |
12.8 |
12.2 |
-5.0 |
497 |
B,C |
STD |
J100F8-4125-5 |
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| 207419 |
414 |
4.125 |
3.875 |
6.200 |
9.488 |
1.350 |
13.1 |
12.5 |
11.9 |
-5.0 |
497 |
C |
STD |
J100F8-4125-5 |
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| 207419 |
411 |
4.125 |
3.850 |
6.200 |
9.475 |
1.350 |
13.0 |
12.4 |
11.8 |
-5.0 |
497 |
C |
STD |
J100F8-4125-5 |
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| 207419 |
406 |
4.125 |
3.800 |
6.250 |
9.500 |
1.350 |
12.8 |
12.2 |
11.6 |
-5.0 |
497 |
C |
STD |
J100F8-4125-5 |
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| 207419 |
401 |
4.125 |
3.750 |
6.250 |
9.475 |
1.350 |
12.7 |
12.0 |
11.5 |
-5.0 |
497 |
C |
STD |
J100F8-4125-5 |
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Tech and Installation Tips
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Valve Relief Diagram
- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.