![Load image into Gallery viewer, K1-6470-4060-506-Mopar Viper/SRT FXK1 Series -0cc Flat Top No Notch Mopar Viper/SRT-Forged-Piston-Set- 4.06 inch bore](http://dssracing.com/cdn/shop/files/VIPFX-MFTHR_b02f921c-6c0e-4b74-b8b8-40b9aea088c8_400x@2x.jpg?v=1709585764)
![Load image into Gallery viewer, K1-6470-4060-506-Mopar Viper/SRT FXK1 Series -0cc Flat Top No Notch Mopar Viper/SRT-Forged-Piston-Set- 4.06 inch bore](http://dssracing.com/cdn/shop/files/FX1_efb9a837-713b-4d32-9057-1746d226e12b_400x@2x.jpg?v=1709585764)
![Load image into Gallery viewer, K1-6470-4060-506-Mopar Viper/SRT FXK1 Series -0cc Flat Top No Notch Mopar Viper/SRT-Forged-Piston-Set- 4.06 inch bore](http://dssracing.com/cdn/shop/files/pistonbox_6075ec45-8b8e-492d-8ffa-69426ba6902d_400x@2x.jpg?v=1709585764)
![Load image into Gallery viewer, K1-6470-4060-506-Mopar Viper/SRT FXK1 Series -0cc Flat Top No Notch Mopar Viper/SRT-Forged-Piston-Set- 4.06 inch bore](http://dssracing.com/cdn/shop/files/FXKKitBlack_fmtcopy_a4aee0de-9ba7-4205-a734-fe125a1b4064_400x@2x.png?v=1709585764)
Engine Brand: Viper
Engine Family: Mopar Viper/SRT
Engine Size: 506
With/Without Rings: Includes Rings
Cylinder Bore Size: 4.060 in - 103.04 mm
Ring Width: 1.2/1.2/3MM
Compression Height: 1.220
Pin Diameter: .945
Connecting Rod Length: 6.242 in
Crankshaft Stroke: 3.960 in
Piston Series: 1 - FX Series
Alloy: Forged 4032
Cylinder Head: Mopar Viper/SRT
TDC Assembly Height: 9.442
Piston Top Aprox. Comp. Ratio:
Chamber | Comp Ratio |
---|---|
64cc | 12.6 to 1 |
74cc | 11.19 to 1 |
84cc | 10.09 to 1 |
Engine Brand: Viper
Engine Family: Mopar Viper/SRT
Engine Size: 506
With/Without Rings: Includes Rings
Cylinder Bore Size: 4.060 in - 103.04 mm
Ring Width: 1.2/1.2/3MM
Compression Height: 1.220
Pin Diameter: .945
Connecting Rod Length: 6.242 in
Crankshaft Stroke: 3.960 in
Piston Series: 1 - FX Series
Alloy: Forged 4032
Cylinder Head: Mopar Viper/SRT
TDC Assembly Height: 9.442
Piston Top Aprox. Comp. Ratio:
Chamber | Comp Ratio |
---|---|
64cc | 12.6 to 1 |
74cc | 11.19 to 1 |
84cc | 10.09 to 1 |
The DSS FX, X-Groove Feature
![](http://dssracing.com/cdn/shop/files/Screen_Shot_2023-02-02_at_12.58.44_PM_1780x_e2888a05-9892-4c89-88c1-e71433dd4633_750x.gif?v=1680360352)