Wiseco Professional Series
Chevrolet LS LT LSX Forged Pistons

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 OR use your e-mail program and type in ron@rpmrons.com to send an e-mail with what you need








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Professional Series
HARD CORE, RACE PROVEN PARTS OFF-THE-SHELF

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

LS 5.3L / 327ci ---- LS7 7.0L / 427ci

GEN V Direct Injected L83 5.3L

GEN V Direct Injected LT1 6.2L

LS Standard Stroke • 3.622 Stroke

LS • 4.000” Stroke ---- LS • 4.100/4.125” Stroker

 

Wiseco Professional Series Forged Pistons

CHEVROLET LSX








• ArmorGlide® Skirt Coating
• Designed for use with stock rod
• .180” wall pins & wire locks
• Anti-detonation & pressure seal grooves
• 2618 High Strength Alloy
• C/R at 0 deck with .051” gasket
• Premium 1.0mm, 1.2mm, 2.8mm XX Rings Included
LS 5.3L / 327ci “Drop In” Replacements
• NA/Boost/Nitrous
• .945” Pin
.945” Pin Diameter, designed for use with stock rod
.945” Pin Diameter, designed for use with stock rod
  Kit Part #  Your Cost  Bore  Comp.
Ht.		 Stroke  Rod Length  0 Deck
at 		 Std. Deck Ht  Avg.
Wt. 		 Volume 

 Compression Ratio At:
58cc--62cc--66cc--70cc

  Pin Part # included
 Std. Tension Rings
1.0, 1.2, 2.8mm
(Included) 		 Valve Pocket 
K0041XS $1,231.04 3.780 1.321 3.622 6.098 9.230 9.240 440 6+ 11.6 10.9 10.4 9.9 S785 $41.65
.945 x 2.250

9600XX $39.02 (x8)

LS1, 2, 3, 6, 92 (cathedral)

K0041X1 $1,231.04
 3.790 442

9625XX (x8)

K0041X2 $1,231.04
 3.800 444

9650XX $39.02 (x8)
K0042XS $1,231.04 3.780 1.321 3.622 6.098 9.230 9.240 411 -10.7 9.4 9.0 8.6 8.3 S785 $41.65
.945 x 2.250

9600XX $39.02 (x8)

LS1, 2, 3, 6, 92 (cathedral)

K0042X1 $1,231.04
 3.790 417

9625XX (x8)
K0042X2 $1,231.04 3.800 424

9650XX $39.02 (x8)
LS 5.3L / 327ci • NA/Nitrous • 927” Pin
• ArmorGlide® Skirt Coating • Designed for use with aftermarket rod
• .150” wall pin & Spirolox® • C/R at 0 deck with .051” gasket
• 2618 High Strength Alloy • Anti-detonation & pressure seal grooves
.927” Pin Diameter, designed for use with aftermarket rod
  Kit Part #  Your Cost  Bore  Comp.
Ht.		 Stroke  Rod Length  0 Deck
at 		 Std. Deck Ht  Avg.
Wt. 		 Volume 

 Compression Ratio At:

58cc--62cc--66cc--70cc

  Pin Part # included
 Std. Tension Rings
1/16 1/16, 3mm
(Sold Separate) 		 Valve Pocket 
3.622” Stroke

K474M96 $1,013.74
 3.780 1.300 3.622 6.098 9.209 9.240 410

-2.2 Flat

Top
 10.5 10.0

9.6

9.1


SS643
.927 x 2.250

3785HF $30.90 (x8)

LS1,2,6
K474M965 $1,013.74 3.800 6.125 9.236 420

3805HF $30.90 (x8)
4.000” Stroke

K473M96 $1,013.74
 3.780 1.110 4.000 6.098 9.208 9.240 370

-7
 10.8 10.3

9.8

9.5
S643 $18.78
.927 x 2.250

3785HF $30.90 (x8)

LS1,2,6
K473M965 $1,013.74 3.800 6.125 9.236 376

3805HF $30.90 (x8)
Optional K1 Rod for LS Series: 6.098” Part # 012AE25610
Optional K1 Rod for LS Series: 6.125” Part # 012AE25613
Optional K1 Rod for LS Series: 6.125” Part # 012AE25613ST (4.000” + Stroker rod)
K1 Crank for LS Series: 4.000” Stroke Part # 012FAE400__*
* Add -24 or -58 to LS Part Number to indicate 24 or 58 Tooth Reluctor Ring

Chevrolet LSX
LS7 7.0L / 427ci

• ArmorGlide® Skirt Coating
• Designed for OE Titanium Rod & Pin Diameter
• .148” wall pins and Spirolox®
• Anti-detonation & pressure seal grooves
• 2618 High Strength Alloy
• C/R at 0 deck with .051” gasket
• Premium 1.2mm, 1.2mm, 3.0mm
GFX Rings Included

LS7 7.0L / 427ci • NA/Nitrous • 9252” Pin

 Kit Part #
Your Cost		 Bore Comp.
Ht.		 Stroke Rod   0 Deck
at		 Std. Deck Ht.

 

Avg.
Wt.

Volume

 Comp. Ratio At: 70CC Comp. Ratio
At. 72cc		  
Pin Part #
(Included)
Ringset
(Included)

Valve Pocket

K0004X125 $1,271.55

4.125 
 1.175 4.000 6.067 9.242 9.240 488 

2.5 

11.5 

11.3 

S761 $13.31
.9252 x 2.250 
  4127GFX $44.43 (x8)

 LS7

K0004X130 $1,271.55

4.130
 490   4137GFX $44.43 (x8)

Direct Injected LT1 6.2L
• ArmorGlide® Skirt Coating • ArmorPlating™ thermal protection
• .200” wall pin & Spirolox® • Anti-detonation & pressure seal grooves
• 2618 High Strength Alloy • Premium GFX Rings
• C/R at 0 deck with .051” gasket
3.622” Stroke
  Kit Part #
Your Cost		  Bore Comp.
Ht. 		 Stroke  Rod  0 Deck
at 		 Std. Deck Ht  Avg.
Wt. 		 Volume  Comp. Ratio At: 59cc  Pin Part #
(Included) 		 Ringset
(Included) 		 Valve Pocket 
                         
K0232XS $1,447.05 4.065 1.304 3.622 6.125 9.240 9.240

-12

10.5

S718 $34.94

.927 x 2.250

4067GFX $44.43 (x8)
  LT1
K0232X05 $1,447.05 4.070

4072GFX $44.43 (x8)
K0232X1 $1,447.05 4.075

4072GFX $44.43 (x8)
K0233XS $1,447.05 4.065 1.304 3.622 6.125 9.240 9.240

-2

11.7

S718 $34.94

.927 x 2.250

4067GFX $44.43 (x8)
 LT1
K0233X05 $1,447.05 4.070

4072GFX $44.43 (x8)
K0233X1 $1,447.05 4.075

4072GFX $44.43 (x8)
4.000” Stroke  
K0234XS $1,447.05 4.065 1.115 4.000 6.125 9.240 9.240

-20

10.5

S718 $34.94

.927 x 2.250

4067GFX $44.43 (x8)
  LT1
K0234X05 $1,447.05 4.070 465

4072GFX $44.43 (x8)
K0234X1 $1,447.05 4.075

4072GFX $44.43 (x8)
K0234X6 $1,447.05

4.125

10.75

4127GFX $44.43 (x8)
K0235XS $1,447.05 4.065 1.115 4.000 6.125 9.240 9.240

-10

11.7

S718 $34.94

.927 x 2.250

4067GFX $44.43 (x8)
  LT1
K0235X05 $1,447.05 4.070 492

4072GFX $44.43 (x8)
K0235X1 $1,447.05 4.075

4072GFX $44.43 (x8)
K0235X6 $1,447.05

4.125

12.0

4127GFX $44.43 (x8)


CHEVROLET LT

GEN V Direct Injected L83 5.3L

• ArmorGlide® Skirt Coating
• .200” wall pin & Spirolox®
• 2618 High Strength Alloy
• Premium 1.5mm, 1.5mm, 3.0mm GNX Rings Included
• Anti-detonation & pressure seal grooves
• C/R at .012 deck with .051” gasket

  Kit Part #
Your Cost		  Bore Comp.
Ht. 		 Stroke  Rod  0 Deck
at 		 Std. Deck Ht  Avg.
Wt. 		 Volume  Comp. Ratio At: 58cc  Pin Part #
(Included) 		 Ringset
(Included) 		 Valve Pocket 
 K0378XS $1,298.59  3.780

1.319  

3.622 

6.098 

9.240 

9.240 
  

-8.5cc 

9.5 

S785 $41.65 .945 x 2.250 
 3780GNX $45.85 Gen V L83  
 K0378X1 $1,298.59 3.790    3796GNX $44.43 Gen V L83
 K0378X2 $1,298.59 3.800    3800GNX  Gen V L83 
 K0379XS $1,298.59 3.780 

1.319 

3.622 

6.098 

9.240 

9.240 
  

-.5cc 

10.5 

S785 $41.65 .945 x 2.250 
 3780GNX $45.85 Gen V L83 
 K0379X1 $1,298.59 3.790    3796GNX $44.43 Gen V L83 
 K0379X2 $1,298.59 3.800  463  3800GNX  Gen V L83 
 K0380XS $1,298.59 3.780 

1.292 

3.622 

6.125 

9.240 

9.240 
 433 

-8.5cc 

9.5 

S718 $34.94 .927 x 2.250   
 3780GNX $45.85 Gen V L83 
 K0380X1 $1,298.59 3.790   

3796GNX $44.43

 Gen V L83 
 K0380X2 $1,298.59 3.800    3800GNX  Gen V L83 
 K0381XS $1,298.59 3.780 

1.292 

3.622 

6.125 

9.240 

9.240 
 455 

-.5cc 

10.5 
 S718 $34.94 .927 x 2.250  3780GNX $45.85 Gen V L83 
 K0381X1 $1,298.59  3.790      3796GNX $44.43 Gen V L83 
 K0381X2 $1,298.59  3.800      3800GNX Gen V L83 


GEN V Direct Injected LT1 6.2L
• ArmorGlide® Skirt Coating
• ArmorPlating™ thermal protection
• .200” wall pin & Spirolox®
• Anti-detonation & pressure seal grooves
• 2618 High Strength Alloy
• C/R at 0 deck with .051” gasket
• Premium 1.2mm, 1.2mm, 3.0mm GFX Rings Included

  Kit Part #
Your Cost		  Bore Comp.
Ht. 		 Stroke  Rod  0 Deck
at 		 Std. Deck Ht  Avg.
Wt. 		 Volume  Comp. Ratio At: 59cc  Pin Part #
(Included) 		 Ringset
(Included) 		 Valve Pocket 
 K0232XS $1,447.05  4.065

1.304 

3.622 

6.125 

9.240 

9.240 
 528 

-12cc 

10.4 

S718 $34.94 .927 x 2.250 
 4067GFX $44.43 (x8) 

Gen V LT1 
 K0232X05 $1,447.05 4.070  532  4072GFX $44.43 (x8)  
 K0232X1 $1,447.05 4.075  538  4072GFX $44.43 (x8) 
 K0233XS $1,447.05 4.065 

1.304 

3.622 

6.125 

9.240 

 9.240
 552 

-2cc 

11.7  

S718 $34.94 .927 x 2.250 
 4067GFX $44.43 (x8) 

Gen V LT1 
 K0233X05 $1,447.05 4.070  555  4072GFX $44.43 (x8) 
 K0233X1 $1,447.05 4.075  558  4072GFX $44.43 (x8) 
 K0234XS $1,447.05 4.065 

1.115 

4.000 

6.125 

9.240 

9.240 
 462 

-20cc
 

10.5 

S718 $34.94 .927 x 2.250 
 4067GFX $44.43 (x8) 

Gen V LT1 
 K0234X05 $1,447.05 4.070  465  4072GFX $44.43 (x8) 
 K0234X1 $1,447.05 4.075  468  4072GFX $44.43 (x8) 
 K0234X6 $1,447.05 4.125    10.75  4127GFX $44.43 (x8) 
 K0235XS $1,447.05 4.065 

1.115 

4.000 

6.125 

9.240 

9.240 
 490 

-10cc 

11.7 

S718 $34.94 .927 x 2.250 
 4067GFX $44.43 (x8) 

Gen V LT1 
 K0235X05 $1,447.05 4.070  492  4072GFX $44.43 (x8) 
 K0235X1 $1,447.05 4.075  495  4072GFX $44.43 (x8) 
 K0235X6 $1,447.05 4.125    12  4127GFX $44.43 (x8) 


CHEVROLET LSX









LS Standard Stroke • NA/Boost/Nitrous • 3.622 Stroke
LS Standard Stroke • 3.622 Stroke
• ArmorGlide® Skirt Coating
• Pin Upgrade Recommened over 700HP (Pin P/N S718)
• .150” wall pin & Spirolox®
• Anti-detonation & pressure seal grooves
• 2618 High Strength Alloy
• C/R at 0 deck with .051” gasket
• Premium Standard Tension 1.2mm, 1.2mm, 3.0mm GFX Rings Included

.945” Pin Diameter, designed for use with stock rod
 Kit Part #  Your Cost  Bore  Comp.
Ht.		  Stroke  Rod Length   0 Deck
at		  Std. Deck Ht  Avg.
Wt. 		 Volume 

 Compression Ratio At:
65cc--67cc--68cc--70cc
 Pin Part # included Ringset
Included 		 Valve Pocket 
.945” Pin Diameter, designed for use with stock rod
 K366X05 $1,125.78  3.903  1.335 3.622  6.098  9.244  9.240  450  -2.2
F.T.		 10.3  10.1  10.0  9.7  S627 $18.78
945x2.500 		 3905GFX $44.43 (x8)  LS1,2,6 
 K0044XS $1,231.04 4.000 

1.311 

3.622 

6.098 


9.220

9.240 
 502 

9+
 11.6  11.3  11.2  10.9  S785 $41.65 .945x2.250  4007GFX $39.02 (x8)  LS1, 2, 3, 6, 92  
 K0044X05 $1,231.04 4.005  507  11.6  11.3  11.2  10.9  S785 $41.65 .945x2.250  4007GFX $39.02 (x8)  LS1, 2, 3, 6, 92  
 K0044X1 $1,231.04 4.010  508  11.6  11.3  11.2  10.9  S785 $41.65 .945x2.250  4014GFX $39.02 (x8)  LS1, 2, 3, 6, 92  
 K0044X2 $1,231.04 4.020  509  11.6  11.3  11.2  10.9  S785 $41.65 .945x2.250  4022GFX $39.02 (x8)  LS1, 2, 3, 6, 92  
 K0045XS $1,231.04 4.000 

1.311 

3.622 

6.098 

9.220 

9.240 
 480 

-9.7 

9.4 

9.2 

9.1 

8.9  

S785 $41.65
.945 x2.250 
 4007GFX $39.02 (x8) 

LS1, 2, 3, 6, 92  
 K0045X05 $1,231.04 4.005  486  4007GFX $39.02 (x8) 
 K0045X1 $1,231.04 4.010  490  4014GFX $39.02 (x8) 
 K0045X2 $1,231.04 4.020  491  4022GFX $39.02 (x8) 
 .927” Pin Diameter, must use K1 or aftermarket rod
 K447X3903 $1,271.55 3.903 

1.300 

3.622 

6.098
6.125 

9.209
9.236 

9.240  
 492 

12+ 

12.4 

11.9   
 11.8  11.5 

S643 $18.78
.927 x2.250 
 3905GFX $44.43 (x8) 

LS1,2,6 
 K447X1 $1,271.55 4.010   

12.9 

12.5

12.4 

12.0 
 4014GFX $39.02 (x8) 
 K447X05 $1,271.55 4.005  535  4007GFX $39.02 (x8) 
 K447X3 $1,271.55 4.030  545  4032GFX $39.02 (x8) 
 K447X7 $1,271.55 4.070    4072GFX $44.43 (x8) 
 K447X75 $1,271.55 4.075    4072GFX $44.43 (x8) 
 K398X3903 $1,088.03 3.903 

1.304 

3.622 

6.098
6.125 

9.213
9.240 

9.240 
 423 

-3.2
F.T. 
 10.1  9.9  9.8  9.5 

S643 $18.78
.927 x2.250 
 3905GFX $44.43 (x8) 

LS1, 2, 3, 6, 92  
 K398X3905 $1,088.03 3.905  424 

10.7 

10.4 

10.3  

10.1 
 3905GFX $44.43 (x8) 
 K398XS $1,088.03 4.000  465  4007GFX $39.02 (x8) 
 K398X05 $1,088.03  4.005  467 4007GFX $39.02 (x8) 
 K398X1 $1,088.03 4.010  471  4014GFX $39.02 (x8) 
 K398X3 $1,088.03 4.030  478  4032GFX $39.02 (x8) 
 K398X7 $1,088.03 4.070  488  4072GFX $44.43 (x8) 
 K398X75 $1,088.03 4.075  492  4072GFX $44.43 (x8) 
 K398X8 $1,088.03 4.080  496  4080GFX $39.06 (x8) 
 K0005X125 $1,271.55 4.125 

1.300 

3.622 

6.098
6.125 

9.209
9.236 

9.240 
 515 

-1
Dome 

11.4 

11.1 

11.0 

10.7 

S643 $18.78
.927 x2.250 
 4127GFX $44.43 (x8) 

LS1, 2, 3, 6, 7, 92 
 K0005X130 $1,271.55 4.130  519  4137GFX $44.43 (x8) 
 K0005X155 $1,271.55 4.155  526  4158GFX $44.43 (x8) 
 K0005X185 $1,271.55 4.185  551  4188GFM $44.43 (x8) 
 K444X3903 $1,271.55 3.903 

1.300 

3.622 

6.098
6.125 

9.209
9.236 

9.240 
 433 

-11 
 9.3  9.1  9.0  8.8 

S643 $18.78
.927 x 2.250 
 3905GFX $44.43 (x8) 

LS1, 2, 3, 6, 92  
 K444XS $1,271.55 4.000  477 

9.8 

9.6 

9.5 

9.3 
 4007GFX $39.02 (x8) 
 K444X05 $1,271.55 4.005  478   4007GFX $39.02 (x8) 
 K444X3 $1,271.55 4.030  492  4032GFX $39.02 (x8) 
 K444X35 $1,271.55 4.035  496  4037GFX $44.43 (x8) 
 K444X7 $1,271.55 4.070   502  4072GFX $44.43 (x8)
 K444X75 $1,271.55  4.075  506  4072GFX $44.43 (x8)
K392X3905 $1,271.55  3.905

1.300 

3.622 

6.098
6.125 

9.209
9.236 

9.240 
 445 

-25 
 8.1  8.0  7.9  7.8 

S643 $18.78
.927 x 2.250 
 3905GFX $44.43 (x8) 

LS1, 2, 3, 6, 92  
 K392XS $1,271.55 4.000  448 

8.5 

8.4 

8.3 

8.2 
 4007GFX $39.02 (x8) 
 K392X05 $1,271.55 4.005  451  4007GFX $39.02 (x8) 
 K392X3 $1,271.55 4.030  502   4032GFX $39.02 (x8)
 K392X7 $1,271.55  4.070  518  4072GFX $44.43 (x8)
 K393X100 $1,271.55  4.100

1.304 

3.622 

6.098
6.125 


9.213
9.240  

9.240 
 505 

-25 

8.8 

8.7 

8.6 

8.4 

S643 $18.78
.927 x 2.250 
 4102GFX $44.43 (x8) 

LS1, 2, 3, 6, 7, 92 
 K393X125 $1,271.55 4.125  515  4127GFX $44.43 (x8) 

CHEVROLET LSX

LS • 4.000” Stroke
• ArmorGlide® Skirt Coating
• Pin Upgrade Recommened over 700HP (Pin P/N S718)
• .150” wall pin & Spirolox®
• Anti-detonation & pressure seal grooves
• 2618 High Strength Alloy
• C/R at 0 deck with .051” gasket
• Premium 1.2mm, 1.2mm, 3.0mm GFX Rings Included

LS • 4.000” Stroker • NA/Boost/Nitrous • .927” Pin
.927” Pin Diameter, designed for use with aftermarket rod
LS • 4.000” Stroker • NA/Boost/Nitrous • .927” Pin
o ArmorGlide® Skirt Coating
o 2618 High Strength Alloy o Anti-detonation & pressure seal grooves o .150" wall pin & Spirolox®
o C/R at 0 deck with .051" gasket o Pin upgrade recommended over 700HP o Designed for use with aftermarket rod
 Kit Part #  Your Cost  Bore  Comp.
Ht.		  Stroke  Rod Length   0 Deck
at		  Std. Deck Ht  Avg.
Wt. 		 Volume 

 Compression Ratio At:
65cc--67cc--68cc--70cc
 Pin Part # included Ringset
Included 		 Valve Pocket 
K448X3903 $1,271.55 3.903 1.110 4.000 6.098
6.125

9.208 9.235
 9.240 438

5+
 12.2 11.9 11.8 11.5 S643 $18.78
.927 x2.250

3905GFX $44.43 (x8)

LS1, 2, 3, 6, 92

K448X05 $1,271.55
 4.005 477 12.9 12.5 12.4 12.0

4007GFX $39.02 (x8)

K448X3 $1,271.55
 4.030 489

4032GFX $39.02 (x8)

K448X7 $1,271.55
 4.070 496

4072GFX $44.43 (x8)
K464X3903 $1,271.55 3.903 1.110 4.000 6.098
6.125		 9.208
9.235		 9.240 430

-3

Dome

 11.1 10.8 10.7 10.5 S643 $18.78
.927 x2.250

3905GFX $44.43 (x8)

LS1, 2, 3, 6, 92

K464X05 $1,271.55
 4.005 468 11.7 11.4 11.3 11.0

4007GFX $39.02 (x8)

K464X1 $1,271.55
 4.010

4014GFX $39.02 (x8)

K464X3 $1,271.55
 4.030 481

4032GFX $39.02 (x8)

K464X35 $1,271.55
 4.035 487

4037GFX $44.43 (x8)

K464X65 $1,271.55
 4.065 495

4067GFX $44.43 (x8)

K464X7 $1,271.55
 4.070 496

4072GFX $44.43 (x8)

K464X75 $1,271.55
 4.075 498

4072GFX $44.43 (x8)

K463X125 $1,271.55

4.125
 1.110 4.000 6.098
6.125		 9.208
9.235		 9.240 468

-2.8

Dome

 12.1 11.8 11.7 11.4 S643 $18.78
.927 x2.250

4127GFX $44.43 (x8)
 LS1, 2, 3, 6, 7, 92

K463X130 $1,271.55

4.130
 484

4132GFX $44.43 (x8)

K463X135 $1,271.55

4.135
 485

4137GFX $44.43 (x8)

K463X155 $1,271.55

4.155
 485 12.5 12.2 12.1 11.8

4158GFX $44.43 (x8)

K463X185 $1,271.55

4.185
 500

4188GFM $44.43 (x8)

K463X200 $1,271.55
 4.200 498

4203GFM $44.43 (x8)
K394X3903 $1,271.55 3.903 1.115 4.000 6.098
6.125		 9.213
9.240		 9.240 391

-8 R/

Dome

 10.5 10.2 10.1 9.9 S643 $18.78
.927 x2.250

3905GFX $44.43 (x8)

LS1, 2, 3, 6, 92
K394X3905 $1,271.55 3.905 397

3905GFX $44.43 (x8)

K394XS $1,271.55
 4.000 458 11.0 10.7 10.6 10.4

4007GFX $39.02 (x8)

K394X05 $1,271.55
 4.005 460

4007GFX $39.02 (x8)

K394X1 $1,271.55
 4.010 462

4014GFX $39.02 (x8)

K394X2 $1,271.55
 4.020 465

4022GFX $39.02 (x8)

K394X3 $1,271.55
 4.030 468

4032GFX $39.02 (x8)

K394X7 $1,271.55
 4.070

4072GFX $44.43 (x8)

K394X75 $1,271.55
 4.075

4072GFX $44.43 (x8)

K394X8 $1,271.55
 4.080

4080GFX $39.06 (x8)

K395X125 $1,088.03

4.125
 1.115 4.000 6.098
6.125		 9.213
9.240		 9.240 451

-8

Flat Top

 11.4 11.2 11.1 10.9 S643 $18.78
.927 x2.250

4127GFX $44.43 (x8)
 LS1, 2, 3, 6, 7, 92

K395X130 $1,088.03

4.130
 472

4132GFX $44.43 (x8)

K395X135 $1,088.03

4.135
 476

4137GFX $44.43 (x8)

K395X155 $1,088.03

4.155
 485 11.7 11.4 11.3 11.1

4158GFX $44.43 (x8)

K395X185 $1,088.03

4.185
 497

4188GFM $44.43 (x8)
K445X3903 $1,271.55 3.903 1.110 4.000 6.098
6.125		 9.208
9.235		 9.240 396

-15
 9.7 9.5 9.4 9.2 S643 $18.78
.927 x2.250

3905GFX $44.43 (x8)

LS1, 2, 3, 6, 92

K445XS $1,271.55
 4.000 437 10.2 10.0 9.9 9.7

4007GFX $39.02 (x8)

K445X05 $1,271.55
 4.005 439

4007GFX $39.02 (x8)

K445X2 $1,271.55
 4.020 434

4022GFX $39.02 (x8)

K445X3 $1,271.55
 4.030 437

4032GFX $39.02 (x8)

K445X35 $1,271.55
 4.035 442

4037GFX $44.43 (x8)

K445X7 $1,271.55
 4.070 454

4072GFX $44.43 (x8)

K445X75 $1,271.55
 4.075 457

4072GFX $44.43 (x8)

K445X8 $1,271.55
 4.080

4082GFX $44.43 (x8)

K446X125 $1,271.55

4.125
 1.110 4.000 6.098
6.125

9.208

9.235

 9.240 442

-18
 10.4 10.2 10.1 10.0 S643 $18.78
.927 x2.250

4127GFX $44.43 (x8)
 LS1, 2, 3, 6, 7, 92

K446X130 $1,271.55

4.130
 450

4132GFX $44.43 (x8)

K446X135 $1,271.55

4.135
 453

4137GFX $44.43 (x8)

K446X155 $1,271.55

4.155
 456

4158GFX $44.43 (x8)
 K456XS $1,271.55 4.000 

1.110 

4.000 

6.098
6.125 

9.208
9.235 

9.240 
 432 

-20 

9.7 

9.6 

9.5 

9.3 

S643 $18.78
.927x2.250 
 4007GFX $39.02 (x8) 

LS1,2,3,6,93 
 K456X05 $1,271.55 4.005  433  4007GFX $39.02 (x8) 
 K456X2 $1,271.55 4.020  428  4022GFX $39.02 (x8) 
 K456X3 $1,271.55 4.030  435  4032GFX $39.02 (x8) 
 K456X35 $1,271.55 4.035  438  4037GFX $44.43 (x8) 
 K456X7 $1,271.55 4.070  441  4072GFX $44.43 (x8) 
 K452X125 $1,271.55 4.125 

1.110 

4.000 

6.098
6.125 

9.208
9.235 

9.240 
 446 

-20 

10.2 

10.1 

10.0 

9.8  

S643 $18.78
.927x2.250 
 4127GFX $44.43 (x8) 

LS1, 2, 3, 6, 7, 92 
 K452X130 $1,271.55 4.130  447  4132GFX $44.43 (x8) 
 K452X135 $1,271.55 4.135  448  4137GFX $44.43 (x8) 
 K452X155 $1,271.55 4.155  455  4158GFX $44.43 (x8) 
 K452X165 $1,271.55 4.165  465  4168GFX $44.43 (x8) 
 K443X125 $1,271.55 4.125 

1.140 

4.000 

6.098
6.100 
 9.238
9.240

9.240 
 446 

-23 

10.0 

9.8 

9.7 

 9.6

S643 $18.78
.927x2.250 
 4127GFX $44.43 (x8) 

LS1, 2, 3, 6, 7, 92 
 K443X155 $1,271.55 4.155  458  4158GFX $44.43 (x8)  
 K443X200 $1,271.55 4.200  463  4203GFM $44.43 (x8) 
 K0035X125 $1,271.55 4.125 

1.110 

4.000 

6.098
6.125 

9.208
9.235 

9.240 
 444 

-25 

9.6 

9.4 

9.3 

9.2 

S643 $18.78
.927x2.250 
 4127GFX $44.43 (x8) 

LS1,2,3,6,93 
 K0035X130 $1,271.55 4.130  445  4132GFX $44.43 (x8) 
 K0035X135 $1,271.55 4.135    4137GFX $44.43 (x8) 
 K0035X155 $1,271.55 4.155  455  4158GFX $44.43 (x8) 
 K396X3903 $1,271.55 3.903 

1.115 

4.000 

6.098
6.125 

9.213
9.235 

9.240 
 415 

-32   
 8.3  8.2  8.1  8.0 

S643 $18.78
.927x2.250 
 3905GFX $44.43 (x8)
 

LS1, 2, 3, 6, 92  
 K396XS $1,271.55 4.000   432 

8.8  

8.7 

8.6 

8.5 
 4007GFX $39.02 (x8)  
 K396X05 $1,271.55 4.005  431  4007GFX $39.02 (x8)
 K396X3 $1,271.55 4.030  445  4032GFX $39.02 (x8) 
 K396X7 $1,271.55 4.070  460  4072GFX $44.43 (x8) 
 K397X100 $1,271.55 4.100 

1.115 

4.000 

6.098
6.125 

9.213
9.235 

9.240 
 420 

-32  

9.1

8.9 

8.8 

8.7 

S643 $18.78
.927x2.250 
 4102GFX $44.43 (x8) 

LS1, 2, 3, 6, 7, 92 
 K397X125 $1,271.55 4.125  430   4127GFX $44.43 (x8) 
 K397X130 $1,271.55 4.130  450  4132GFX $44.43 (x8) 
 K397X135 $1,271.55 4.135  450  4137GFX $44.43 (x8) 
 K397X155 $1,271.55 4.155  460  4158GFX $44.43 (x8) 

Optional K1 Rod for LS Series: 6.098” Part # 012AE25610
Optional K1 Rod for LS Series: 6.125” Part # 012AE25613
Optional K1 Rod for LS Series: 6.125” Part # 012AE25613ST (4.000” + Stroker rod)
* Add -24 or -58 to LS Part Number to indicate 24 or 58 Tooth Reluctor Ring

CHEVROLET LSX

LS • 4.000/4.125” Stroker
• ArmorG lide® Skirt Coating
• Pin Upgrade Recommened over
700HP (Pin P/N S718)
• .150” wall pin & Spirolox®
• Anti-detonation & pressure seal grooves
• 2618 High Strength Alloy
• Wrist pin included: Part # S643 $18.78 .927 x 2.250
• Valve Pocket: LS1, 2, 3, 6, 92

Chevrolet LSX • 4.100 / 4.125 Stroke
LS • 4.100/4.125” Stroker • NA/Boost/Nitrous • .927” Pin
 Kit Part #  Your Cost  Bore  Comp.
Ht.		  Stroke  Rod Length   0 Deck
at		  Std. Deck Ht  Avg.
Wt. 		 Volume 

 Compression Ratio At:
65cc--66cc--68cc--70cc
 Pin Part # included Ringset
Included 		 Valve Pocket 
K451X3903 $1,271.55 3.903 1.050 4.100
4.125		 6.125

9.225 9.237
 9.240 420

3+
 12.2 11.9 11.7 11.4 S643 $18.78
.927 x 2.250

3905GFX $44.43 (x8)

LS1, 2, 3, 6, 92

K451XS $1,271.55
 4.000 457 12.8 12.5 12.3 12.0

4007GFX $39.02 (x8)

K451X05 $1,271.55
 4.005 458

4007GFX $39.02 (x8)

K451X3 $1,271.55
 4.030 466

4032GFX $39.02 (x8)

K451X7 $1,271.55
 4.070 472

4072GFX $44.43 (x8)

K462X125 $1,271.55

4.125
 1.050 4.100
4.125		 6.125 9.225
9.237		 9.240 463

-2.8

Dome

 12.4 12.1 12.0 11.7 S643 $18.78
.927 x 2.250

4127GFX $44.43 (x8)
 LS1, 2, 3, 6, 7, 92

K462X130 $1,271.55

4.130
 468

4132GFX $44.43 (x8)

K462X155 $1,271.55

4.155
 478

4158GFX $44.43 (x8)

K462X185 $1,271.55

4.185
 490 13.0 12.7 12.5 12.2

4188GFM $44.43 (x8)

K462X200 $1,271.55
 4.200 480

4203GFM $44.43 (x8)
K450X3903 $1,271.55 3.903 1.050 4.100
4.125		 6.125 9.225
9.237		 9.240 423

-11
 10.3 10.1 10.0 9.8 S643 $18.78
.927 x 2.250

3905GFX $44.43 (x8)

LS1, 2, 3, 6, 92

K450XS $1,271.55
 4.000 418 11.0 10.8 10.7 10.5

4007GFX $39.02 (x8)

K450X05 $1,271.55
 4.005 420

4007GFX $39.02 (x8)

K450X3 $1,271.55
 4.030 429

4032GFX $39.02 (x8)

K450X7 $1,271.55
 4.070 430

4072GFX $44.43 (x8)
K454X3903 $1,271.55 3.903 1.050 4.100
4.125		 6.125 9.225
9.237		 9.240

-14
 10.0 9.8 9.8 9.5 S643 $18.78
.927 x 2.250

3905GFX $44.43 (x8)

LS1, 2, 3, 6, 92

K454XS $1,271.55
 4.000 10.7 10.5 10.3 10.0

4007GFX $39.02 (x8)

K454X05 $1,271.55
 4.005 420

4007GFX $39.02 (x8)

K454X3 $1,271.55
 4.030 435

4032GFX $39.02 (x8)

K454X7 $1,271.55
 4.070 435

4072GFX $44.43 (x8)

K455X125 $1,271.55

4.125
 1.050

 

4.100
4.125

 6.125

 

9.225
9.237

 9.240 425

-22
 10.4 10.2 10.1 10.0 S643 $18.78
.927 x 2.250

4127GFX $44.43 (x8)
 LS1, 2, 3, 6, 7, 92

K455X155 $1,271.55

4.155
 440

4158GFX $44.43 (x8)

K449X05 $1,271.55
 4.005 1.050 4.100
4.125		 6.125 9.225
9.237		 9.240 406

-30
 9.2 9.1 9.0 8.8 S643 $18.78
.927 x 2.250

4007GFX $39.02 (x8)

LS1, 2, 3, 6, 92

K449X3 $1,271.55
 4.030 414

4032GFX $39.02 (x8)

K449X7 $1,181.14
 4.070 425

4072GFX $44.43 (x8)
* Add -24 or -58 to LS Part Number to indicate 24 or 58 Tooth Reluctor Ring

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