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OMC Pistons 235 HP - 275 HP

Wiseco forged pistons are superior in strength  due to the inherent nature of both the aluminum alloy and the forging extrusion manufacturing process.

A PRO Piston is made of the highest quality alloys. Pro Pistons are made from high silicon aluminum alloy and meets or exceeds oem specifications. The Pro pistons are our most economical piston line.
The Pro-V Piston is made of the same alloys as the pro piston adding a gray moly coating. Moly reduces friction during the critical break-in period and Helps dissipate heat as well.
*All pistons are sold with wrist pins, rings, and clips (unless noted).
**All piston kits include one piston only.
Model Cyl. Piston Size Bore Size Wiseco Pro Parts Pro-V cart.gif (2032 bytes)
3.3L Ficht 225/250HP 2000-2004 6 STDPort 3.654 3180PS  - -

STDStar 3.654 3180SS  - -

020Port 3.674 3180P2  - -

020Star 3.674 3180S2  - -

030Port 3.684 3180P3  - -

030Star 3.684 3180S3  - -

040Port 3.694 3180P4  - -

040Star 3.694 3180S4  - -

235HP  1980-85, Crossflow 3-5/8",

2.6 liter 1982-86 Crossflow (Big Bore) will not fit G.T. models.

6 STD 3.625 3121PS  - -

- - 2763STD 

020 3.645 3121P2  - -

- - 2763020 

030 3.655 3121P3  - -

- - 2763030 

040 3.665 3121P4  - -

235HP  1978-79, Crossflow, 3-1/2"

 

OMC V4/ V6 Crossflow Commercial

New product for high load applications

measures .800 " (.20 MM ) From bottom of wrist pin hole to bottom of piston skirt. ***Early models used an offset wrist pin measuring  .660 " (Bottom of pin to bottom of piston skirt) and use #3174 pistons ****

6 STD 3.500 3173PS  - -

- - 1300V 

- 1300  -

.020 3.520 3173P2  - -

- - 1320V 

- 1320  -

.030 3.530 3173P3  - -

- - 1330V 

- 1330  -

.040 3.540 - -   -
- - 1340V 

- 1340  -

.044 3.544 3173P4  - -

.064 3.564 3173P6  - -

250HP,  1991-95, Looper (Big Bore);

275HP 1988 Looper (Big Bore)

8

 

8

STD Port 3.500 3119PS  -

- 1900P 

- 1900PV 

STD Starboard 3.500 3119SS  -

- 1900S 

- 1900SV 

020 Port 3.520 3119P2  -

- 1920PV 

020 Starboard 3.520 3119S2  -

- 1920SV 

030 Port 3.530 3119P3  -

- 1930P 

- 1930PV 

030 Starboard 3.530 3119S3  -

- 1930S 

- 1930SV 

044 Port 3.544 3119P4  -

044 Starboard 3.544 3119S4  -

064 Port 3.564 3119P6  -

064 Starboard 3.564 3119S6  -

275HP,  1985-87, Looper (Small Bore) 8 STD Port 3.500 3118PS  -  

- 1800P   

-   1800PV 

STD Starboard 3.500 3118SS  -  

- 1800S   

-   1800SV 

020 Port 3.520 3118P2  -  

- 1820P   

-   1820PV 

020 Starboard 3.520 3118S2  -  

- 1820S   

-   1820SV 

030 Port 3.530 3118P3  -  

- 1830P   

-   1830PV 

030 Starboard 3.530 3118S3  -  

- 1830S   

-   1830SV 

044 Port 3.544 3118P4  -  

044 Starboard 3.544 3118S4  -  

064 Port 3.564 3118P6  -  

064 Starboard 3.564 3118S6  -