Wiseco Forged Piston Kits - Nissan

RPM - RON'S PRECISION MACHINE, INC.
69 E. 580 N.
Santaquin, Utah 84655
1-801-754-5338 or Toll free 1-866-700-5877
Contact us anytime 24-7

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Call toll free to purchase at: 1-866-700-5877

Shelf-Stock Forged Pistons. Sold complete with pistons, rings, wrist pins and circlips. (piston kits)

  • ArmorGlide® SKIRT COATING INCREASES POWER AND REDUCES PISTON ROCK.
  • STRUTTED FORGING FOR IMPROVED STRENGTH
  • 2618 AEROSPACE ALLOY FOR SUPERIOR STRENGTH

 


NISSAN SPORT COMPACT SERIES
Nissan CA18DET 1.8L 16V (Oil Squirters may require modification)
Wrist pins included: S641 20mm - .787 x 1.986

 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K630M83 $731.51 83.00 3.268 Std. 3.291
83.6mm		 5.231
132.87mm		 1.171
29.75mm		  51.0

 FT
 .059
1.5mm		 .014
.36mm		 8.061
204.75mm		  8.4 8300XX $39.02 303 1, Q
K630M835 $731.51 83.50 3.289 0.020  8.5 8350XX $39.02 309
K630M84 $731.51 84.00 3.307 0.040  8.6 8400XX $39.02 312

Nissan FJ20
Wrist pins included: S625 $18.78 22mm - .866 x 2.500
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K574M895 $814.00 89.50 3.524 0.020 3.219
80mm		 5.512
140mm		 1.267
32.18mm		  49.5 -16.7cc .050
1.3mm		 +.007
+.18mm		 8.346
212mm		  8.0 8950XX $39.02 383 1, 3
K574M90 $814.00 90.00 3.543 0.040 9000XX $39.02 386


Nissan SR20DE & SR20DET
180SX/200SX 2.0L 16V
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
Wrist pins included: S625 $18.78 22mm - .866 x 2.500
K556M86AP $925.92 86.00 3.386 Std. 3.386
86mm		 5.364
136.25mm		 1.260
32mm		  45.0 -12cc .036
.91mm

0
 8.317
211.25mm		  9.0 8600XX $39.02 328 1,2,
3
K556M8625AP $925.92 86.25 3.396 0.010  9.0 8625XX $39.02 330
K556M865AP $925.92 86.50 3.405 0.020  9.1 8650XX $39.02 333
K556M87AP $925.92 87.00 3.425 0.040  9.2 8700XX $39.02 345
Wrist pins included: S625 $18.78 22mm - .866 x 2.500
K557M86 $831.47 86.00 3.386 Std. 3.386
86mm		 5.364
136.25mm		 1.260
32mm		  45.0

FT
 .036
.91mm

0
 8.317
211.25mm		  10.9 8600XX $39.02 330 1,2,
3
K557M865 $831.47 86.50 3.405 0.020  11.0 8650XX $39.02 336
K557M87 $831.47 87.00 3.425 0.040  11.1 8700XX $39.02 344
Wrist pins included: S618 22mm - .866 x 2.000
KE233M87 $901.73 87.00 3.425 0.040 3.386
86mm		 5.364
136.25mm		 1.260
32mm		  45.0  4cc .036
.91mm

0
 8.317
211.25mm		  12.0 8700XX $39.02 344

1, 2, E


Nissan SR20 & SR20DET 92mm Stroker 2.0L
Wrist pins included: S751 $18.78 22mm - .866 x 2.362
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's  

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K655M86 $778.82 86.00 3.386 Std. 3.622
92mm		 5.364
136.25mm		 1.140
28.95mm

45.0
 -17cc .036
.91mm		 .002
.05mm		 8.317
211.25mm		  8.9 8600XX $39.02 316 1,2,
3
K655M865 $778.82 86.50 3.405 0.020  9.0 8650XX $39.02 321
K655M87 $778.82 87.00 3.425 0.040  9.0 8700XX $39.02 327
K655M89 $778.82 89.00 3.504 0.120  9.4 8900XX $37.68 350


Nissan KA24DE 240SX 2.4L 16V 1991-98
Wrist pins included: S624 $18.78 21mm - .827 x 2.500
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K586M89AP $943.60 89.00 3.504 Std. 3.780
96mm		 6.496
165mm		 1.336
33.94mm		  46.0 -22cc .045
1.1mm		 .003
.08mm		 9.724
247mm		  8.9 8900XX $37.68 352 1, 3
K586M895AP $943.60 89.50 3.524 0.020  9.0 8950XX $39.02 358
K586M90AP $943.60 90.00 3.543 0.040  9.0 9000XX $39.02 363
K586M905AP $943.60 90.50 3.563 0.060  9.1 9050XX $39.02 370
K587M89 $830.14 89.00 3.504 Std. 3.780
96mm		 6.496
165mm		 1.336
33.94mm		  46.0 -9cc .045
1.1mm		 .003
.08mm		 9.724
247mm		  10.5 8900XX $37.68 360 1, 3
K587M895 $830.14 89.50 3.524 0.020  10.6 8950XX $39.02 364
K587M90 $830.14 90.00 3.543 0.040  10.7 9000XX $39.02 369
K587M905 $830.14 90.50 3.563 0.060  10.8 9050XX $39.02 374


Nissan QR25DE Sentra 2.5L 16V
Wrist pins included: S623 $18.78 20mm - .787 x 2.500
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K670M8900AP $925.92 89.00 3.504 Std. 3.937
100mm		 5.630
143mm		 1.260
32mm		  55.0 -19.5cc .040
1.0mm		 .020
.50mm		 8.878
225.5mm		  8.4 8900XX $37.68 331 1, 3
K670M8950AP $925.92 89.50 3.524 0.020  8.5 8950XX $39.02 340
K670M9000AP $925.92 90.00 3.543 0.040  8.6 9000XX $39.02 345
K671M8900AP $925.92 89.00 3.504 Std. 3.937
100mm		 5.630
143mm		 1.260
32mm		  55.0 -1.8cc .040
1.0mm		 .020
.50mm		 8.878
225.5mm		  10.4 8900XX $37.68 358 1, 3
K671M8950AP $925.92 89.50 3.524 0.020  10.5 8950XX $39.02 367
Foot Notes (far right column)
1 - Most Wiseco Pistons have offset pins. (Pins must be offset, same as OEM, for quietest operation).
2 - Due to compression height that may protrude above the deck, it is recommended that a
1.00mm thick head gasket is used.
3 - Optional pin upgrade available.
D - Weight reduction possible.
E - With valve pockets unlike K557M Series.
Q - Oil Squirter modification required.

Nissan RB25DET Skyline 2.5L 24V
Wrist pins included: S624 $18.78
21mm - .827 x 2.500
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K578M8625AP $1,287.71 86.25 3.396 0.010 2.823
71.7mm		 4.783
121.5mm		 1.240
31.5mm		  66.5 14cc  .040
1.0mm		 +.013
.33mm		 7.421
188.5mm		  8.4 8625XX $39.02 405 1, 2, 3
K578M865AP $1,287.71 86.50 3.405 0.020  8.4 8650XX $39.02 401
K578M87AP $1,287.71 87.00 3.425 0.040  8.5 8700XX $39.02 406



Nissan RB26DETT Skyline 2.6L 24V
Wrist pins included: S624 $18.78
21mm - .827 x 2.500
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K591M86AP $1,287.71 86.00 3.386 Std. 2.901
73.68mm		 4.783
121.5mm		 1.181
30mm		  66.5  14cc .045
1.1mm		 .006
.15mm		 7.421
188.5mm		  8.1 8600XX $39.02 334 1, 3
K591M8625AP $1,287.71 86.25 3.396 0.010  8.1 8625XX $39.02 342
K591M865AP $1,287.71 86.50 3.405 0.020  8.2 8650XX $39.02 348
K591M87AP $1,287.71 87.00 3.425 0.040  8.3 8700XX $39.02 348
K591M8725AP $1,287.71 87.25 3.435 0.050  8.3 8725XX $39.02 338
K591M875AP $1,287.71 87.50 3.445 0.060  8.4 8750XX $39.02 360


Nissan VG30DETT 300ZX 3.0L 24V 1990-96
Wrist pins included: S625 $18.78 22mm - .866 x 2.500
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K549M87AP $1,287.71 87.00 3.425 Std. 3.270
83mm		 6.071
154mm		 1.260
32mm		  49.5 -9cc .045
1.2mm		 .005
.12mm		 8.971
227.86mm		  8.4 8700XX $39.02 325 1. 3
K549M8725AP $1,287.71 87.25 3.435 0.010  8.4 8725XX $39.02 330
K549M875AP $1,287.71 87.50 3.445 0.020  8.5 8750XX $39.02 335
K549M88AP $1,287.71 88.00 3.464 0.040  8.6 8800XX $39.02 344


Nissan VQ35DE 3.5L 24V V6
• 350Z Maxima, Altima, and Infiniti G35 2004-06
Wrist pins included: S625 $18.78
22mm - .866 x 2.500
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K605M955AP $1,287.71 95.50 3.760 Std. 3.205
81.4mm		 5.676
144.2mm		 1.168
29.67mm		  57.0 -10cc .024
.60mm		 .018
.46mm		 8.464
215mm		  8.8 9550XX $39.02 354 1, 3
K605M96AP $1,287.71 96.00 3.780 0.020 9600XX $39.02 360
K606M955 $1,193.27 95.50 3.760 Std. 3.205
81.4mm		 5.676
144.2mm		 1.168
29.67mm		  57.0  7cc .024
.60mm		 .018
.46mm		 8.464
215mm		  11.0 9550XX $39.02 375 1, 3
K606M96 $1,193.27 96.00 3.780 0.020 9600XX $39.02 379


Nissan VQ37VHR 3.7L 24V V6
• G37, 370Z
Wrist pins included: S710 $18.78
22mm - .866 x 2.500
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K643M955 $1,193.27 95.50 3.760 Std. 3.385
86mm		 5.881
149.4mm		 1.198
30.43mm		 50.5cc -15.5cc .024
.60mm		 .026
.66mm		 8.797
223.4mm

 9.0
 9550XS $30.98 365

1
K643M96 $1,193.27 96.00 3.780 0.020 9600XS 372


Nissan VR38DETT 3.8L 24V V6
• Nissan GTR HD2 Asymmetric Skirt
• 9.5:1cr
• Gas Ported
• Includes .225” wall tool steel pins: S790 $30.94
23mm - .905 x 2.250
 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K681M955AP $1,452.45 95.50 3.760 Std. 3.480
88.4mm		 6.496
165mm		 1.350
34.3mm		 64.2cc  -1.8cc  .030
.76mm		 .020
.50mm		 9.606
244mm		  9.5 9550XX $39.02 445

1
K681M9558AP $1,452.45 95.58 3.763 0.003 9550XX $39.02 446


Nissan VR38DETT 3.8L 24V V6

• Nissan GTR HD2 Asymmetric Skirt
• 9.5:1cr
• Stroker
• Gas Ported
• Includes .225” wall tool steel pins: S790 $30.94 23mm - .905 x 2.250

 Kit Part #
 Your Cost

 
Bore
mm/Inch

Over
Size

Stroke

Rod Length

Comp.
Ht. 

Head
cc's

Volume 

Gasket
Thickness 

Deck
Clearance

 Block
Height

 Comp.
Ratio

 Ringset
(Included)

 Avg.
Wt

Foot-
Note
K680M955AP $1,452.45 95.50 3.760 Std. 3.717
94.4mm		 6.496
165mm		 1.350
34.3mm		 64.2cc  -6.3cc .030
.76mm		 .020
.50mm		 9.606
244mm		  9.5 9550XX $39.02 432

1
K680M9558AP $1,452.45 95.58 3.763 0.003 9550XX $39.02 432
Foot Notes (far right column)
1 - Most Wiseco Pistons have offset pins. (Pins must be offset, same as OEM, for quietest operation).
2 - Due to compression height that may protrude above the deck, it is recommended that a
1.00mm thick head gasket is used.
3 - Optional pin upgrade available.
4 - Utilizes extra deep valve pockets to expand the range of I-Vtec with big cams and milled heads
6 - These pistons have an oil ring groove that is lower than OE. Will not work with sleeves
with access hole if the oil ring is not pinned in place.
B - Build to order.
C - Stroker Kit for B25 stroker Crank.
D - Weight reduction possible.
E - With valve pockets unlike K557M Series.
G - Only with 2.5L connecting rods
H - Based on Volvo rod 23mm. Ford OEM 21mm.
P - Piston guided rod, washer required.
Q - Oil Squirter modification required.
R - Pin 20mm, OEM = 20.65mm (13/16)

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