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WISECO PRO SERIES LS PISTON - 4.125 - 4.000 - 6.125 - DISH - -32cc - K397X125

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WISECO PRO SERIES LS PISTON - 4.125 - 4.000 - 6.125 - DISH - -32cc - K397X125

Wiseco pulled out all of the stops when the introduced their Professional Series piston kits. These pistons accommodate the reluctor ring on stroker cranks without having to notch the pin bosses. Offset pins like OE and skirt shapes are specifically designed for street applications, making these the best piston kits available. They've been successfully tested in the highest horsepower applications. Professional Series kits also utilize ArmorGlide skirt coating—which is the result of testing, development, and benchmarking through Wiseco's in-house dyno program. The outcome is minimized friction, maximized horsepower, and improved wear resistance. Not only is ArmorGlide a high-tech lubricant that reduces friction, but it also allows the piston to be fitted tighter within the bore than a non-coated piston. Anti-detonation and pressure seal grooves give you a better ring seal, reducing noise from the piston rock and delivering better performance. Order the pistons tailored for your application.

Bore (in):4.125 in.

Bore (mm):104.775mm

Piston Style:Flat top, with two valve reliefs

Piston Material:Forged aluminum

Compression Height (in):1.115 in.

Piston Head Volume (cc):+32.00cc

Wrist Pin Style:Press-fit or floating

Pin Lock Rings Included:Yes

Pin Diameter (in):0.927 in.


File Fit:Yes

Top Ring Thickness:1.2mm

Top Ring Material:Steel

Top Ring Facing Material:Gas nitrided

Second Ring Thickness:1.2mm

Second Ring Material:Cast iron

Second Ring Facing Material:Phosphate coated

Oil Ring Thickness:3.0mm

Oil Ring Material:Chrome plated carbon steel

Additional Information

Length 18
Height 5
Width 10
Weight 20.0000
BTR SKU K397X125
Brand Wiseco
Part Type Pistons
Engine Type Gen III/Gen IV
Piston Volume -32cc
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