Wiseco Professional Series LS 4.00 Stroke Piston Set

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  • Regular price $875.95

Wiseco Forged Pro Series LS Pistons Kits for 4.00" stroke crankshafts

Bore sizes ranging from 3.903 to 4.125 chances are you will find a solid piston kit here for a 4.00" stroke LS engine.  HPR has extensive history with Wiseco and have found them to be one of the best piston manufacturers in the market today and our first pick for most builds.  All kits include piston pin, locks, and ring set unless noted otherwise.

Some of our forged pistons offer our new ArmorGlide™ skirt coating, which is the result of testing, development, and benchmarking through Wiseco’s rigorous in-house dyno program. The outcome is the ultimate in skirt coating toughness, lubrication, and bond technology working together to minimize friction, maximize horsepower, and provide 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 allowing a better ring seal and reduced noise from piston rock.

2618 Aerospace Alloy for Superior Strength to Weight Ratio
Fully Machined Crown Features
ArmorGlide Skirt Coating
StandardPrecision Ring Grooves
0.150" Wall Pins and Spirolox
Anti-detonation & Pressure Seal Grooves
GFX 1.2 / 1.2 / 3.0 mm ring set included
Designed to use 0.927" piston pin
For use with 6.125" Rod


*picture may not represent actual product

**ask your sales rep for details on compression with your heads

***some pistons are special order and may have a wait time.