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NITROUS SERIES DOME

The ring lands, crown, and bottom band of these pistons are specifically designed for nitrous applications. The valve reliefs accommodate most oversized valves and long duration, wide lobe separation cams. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. HNS (Hardened Nitrous Series) rings are available for this series, change ring prefix to J820F8.

Includes:
Pin #927-2950-15-51S (140g)
Contact reduction grooves
Double spiro locks #927-042-CS
Double pin oilers
350 Series
Std Bore: 4.000
Ring package designed for: 1/16, 1/16, 3/16 Rings

Click here to see matching JE Pro Seal Head Gaskets!

Tech and Installation Tips
Valve Relief Diagram
Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
58cc 64cc 76cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
232509 383 4.030 3.750 6.000 9.000 1.125 13.3 12.2 10.6 3.0 478 B,S 0.030 J100F8-4030-5
232510 384 4.040 3.750 6.000 9.000 1.125 13.3 12.2 10.6 3.0 485 B,S,M 0.040 J100F8-4040-5
232511 388 4.060 3.750 6.000 9.000 1.125 13.4 12.3 10.7 3.0 493 B,S,M 0.060 J100F8-4060-5
173583 357 4.030 3.500 6.000 9.000 1.250 13.8 12.6 10.7 10.0 503 A,B,M 0.030 J10008-4030-5
173584 359 4.040 3.500 6.000 9.000 1.250 13.9 12.7 10.8 10.0 508 A,B,M 0.040 J10008-4040-5
194885 362 4.060 3.500 6.000 9.000 1.250 14.0 12.8 10.9 10.0 521 A,B,M 0.060 J10008-4060-5


400 Series
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!

Tech and Installation Tips
Valve Relief Diagram
Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
58cc 64cc 76cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
232508 400 4.125 3.750 6.000 9.020 1.145 13.9 12.8 11.1 3.0 524 B,S,M STD J100F8-4125-5
173586 407 4.155 3.750 6.000 9.000 1.125 13.9 12.8 11.1 3.0 529 B,S 0.030 J10008-4155-5
194952 409 4.165 3.750 6.000 9.000 1.125 14.0 12.8 11.0 3.0 530 B,S 0.040 J10008-4165-5
173588 380 4.155 3.500 6.000 9.000 1.250 14.0 12.8 11.0 8.0 544 A,B,M 0.030 J10008-4155-5
194886 381 4.165 3.500 6.000 9.000 1.250 14.0 12.8 11.0 8.0 551 A,B,M 0.040 J10008-4165-5

- 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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