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SMALL BLOCK CHEVY
BIG BLOCK CHEVY
FORD
MOPAR
BUICK
NHRA
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 SERIES
Std Bore: 3.900"-5.7L, 4.000"-6.0L
Ring package designed for: 1/16, 1/16, 3/16 Rings

 Tech and Installation Tips
 Valve Relief Diagram
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
170852 357 4.030 3.500 5.956 9.480 1.774 11.5 10.9 10.4 -5.0 550 M,D 0.030 J10008-4030-5
170853 359 4.040 3.500 5.956 9.480 1.774 11.5 10.9 10.4 -5.0 565 M,D 0.040 J10008-4040-5

351W STROKER
Std Bore: 3.900"-5.7L, 4.000"-6.0L
Ring package designed for: 1/16, 1/16, 3/16 Rings
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
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
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 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
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
170845 393 4.030 3.850 5.956 9.480 1.600 12.5 11.9 11.3 -5.0 523 D 0.030 J10008-4030-5
170846 395 4.040 3.850 5.956 9.480 1.600 12.5 11.9 11.3 -5.0 525 D 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
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 B,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 B,C STD J100F8-4125-5
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

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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