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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
351W STROKER
Std Bore: 3.900"-5.7L, 4.000"-6.0L
Ring package designed for: 1/16, 1/16, 3/16 Rings

Click here to see matching JE Pro Seal Head Gaskets!
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
188704 418 4.030 4.100 6.200 9.500 1.250 13.2 12.6 12.0 -5.0 438 C 0.030 J10008-4030-5
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
170232 408 4.030 4.000 6.200 9.480 1.280 12.9 12.3 11.7 -5.0 464 C,M 0.030 J10008-4030-5
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


SVO/DART BIG BORE RACE BLOCKS
Std Bore: 4.125
Ring package designed for: 1/16, 1/16, 3/16 Rings

Click here to see matching JE Pro Seal Head Gaskets!
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
232474 428 4.125 4.000 6.200 9.480 1.280 13.5 12.8 12.2 -5.0 490 C STD J10008-4125-5
207419 427 4.125 4.000 6.125 9.475 1.350 13.5 12.8 12.2 -5.0 497 C STD J100F8-4125-5
338242 430 4.135 4.000 6.200 9.480 1.280 13.5 12.8 12.2 -5.0 NEW B,C,M 0.010 J100F8-4135-5
338243 432 4.145 4.000 6.200 9.480 1.280 13.5 12.9 12.3 -5.0 NEW B,C,M 0.020 J100F8-4145-5
338244 434 4.155 4.000 6.200 9.480 1.280 13.5 12.9 12.3 -5.0 NEW B,C,M 0.030 J100F8-4155-5
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
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
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
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

- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.


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