Wiseco Pistons
Wiseco W6329 MLS Cylinder Head Gasket 88mm Bore .040 Thickness Toyota 5S-FE
Wiseco 6473ML96 Forged Piston SBC LS1 Vortec 5.3L 96mm Bore -7cc 22mm Pin
Wiseco 6473ML965 Forged Piston SBC LS1 Vortec 5.3L 96.5mm Bore Shelf Stock
Wiseco 6473MR965 Forged Piston SBC LS Vortec 5.3L 96.5mm -7cc Dish
Wiseco 6473MR96 Forged Piston SBC LS1 Vortec 5.3L 96mm Bore -7cc 10.25:1
Wiseco 3820A Low Tension Piston Ring Set 3.820 in. Bore 1/16 1/16 3/16
Wiseco W6432 MLS Head Gasket 98mm x .040" Sport Compact Performance
Wiseco W6320 Sport Compact MLS Cylinder Head Gasket 100mm x .040"
Wiseco 4047GFX GFX-Style Piston Ring Set 4.047 in. Bore Gas Nitrided File Fit Single Cylinder
Wiseco 4027GFX GFX Piston Ring Set 4.027 in. Bore 1.2mm Steel Nitride File-to-Fit Single Cylinder
Wiseco Pistons 4158GFX GF-Style Piston Ring Set 105.61mm (4.158in)
Wiseco 4067GFX GF-Style Piston Ring Set 4.067in Bore 1.2/1.2/3.0mm File-to-Fit
Wiseco 4132GFX GF-Style Piston Ring Set 4.132 in. Bore 1.2/1.2/3.0mm Single Cylinder
Wiseco 4203GFM GF-Style Piston Ring Set 4.203 in. Bore 1.2mm/1.2mm/3.0mm
Wiseco 4062GFX GFX Series Piston Ring Set 4.062 in. Bore 1.2mm/1.2mm/3mm
Wiseco 4037GFX GF-Style Piston Ring Set 4.037 in. / 102.54mm Bore File-Fit
Wiseco 4168GFX GFX Piston Ring Set 4.168 in. Bore 1.2/1.2/3.0mm Single Cylinder
Wiseco 4102GFX GF-Style Piston Ring Set 4.100 in. Bore Gas Nitrided File-Fit
Wiseco 4147GFX GFX Piston Ring Set Steel Nitrided Napier Style
Wiseco 3905GFX GFX-Style Piston Ring Set 3.905 in. Bore 1.2/1.2/3.0mm Single Cylinder
Wiseco 4007GFX GFX-Style Piston Ring Set 4.007 in. Bore 1.2/1.2/3.0mm File-Fit
Wiseco 4052GFX GFX Series Piston Ring Set 4.052 in. Bore 0.047 in. File-Fit Gas-Nitrided Steel
Wiseco 9350XX XX-Series Piston Ring Set Bore - 93.50mm 1.00/1.20/2.80mm
Wiseco Pistons: Over 80 Years of Forged Performance
When it comes to high-performance engine internals, few names carry as much weight as Wiseco. Founded more than 80 years ago and headquartered in Mentor, Ohio, Wiseco has grown from a passion-driven racing operation into one of the world's foremost manufacturers of forged pistons for both automotive and powersport applications. Their pistons are engineered, forged, and machined on cutting-edge equipment right in the United States — a commitment to domestic craftsmanship that enthusiasts and professional racers have come to rely on.
At the heart of Wiseco's lineup are their engine pistons — the product that built the brand's legendary reputation. Unlike cast pistons, Wiseco's forged pistons are produced under intense pressure, aligning the grain structure of the aluminum for superior tensile strength and thermal resistance. Whether the application is a high-revving dirt bike, a boosted street car, a snowmobile pushing through deep powder, or a drag motor chasing elapsed-time records, Wiseco engineers a piston to suit the specific demands of each engine. Their catalog spans both 2-stroke and 4-stroke platforms, covering hundreds of engine applications for motorcycles, ATVs, UTVs, personal watercraft, snowmobiles, and performance automobiles.
For riders and builders focused on the powersport world, Wiseco's dedicated powersport pistons category delivers that same forged-aluminum precision tuned specifically for the unique demands of off-road and on-water machines. From Supercross champions to mountain snowmobile riders, Wiseco's powersport piston technology has proven itself at every level of competition.
Wiseco doesn't stop at pistons alone. A proper engine build requires complementary components, and the brand delivers. Their engine piston ring compressors are purpose-built tools that simplify and protect the installation process, ensuring rings seat correctly without damage — a small but critical step in any successful rebuild. For builders tackling a complete overhaul, Wiseco's engine rebuild kits bundle precision-matched components together, taking the guesswork out of parts sourcing and compatibility. And for those who want to address every wear surface in one go, Wiseco's engine complete assembly overhaul kits provide a comprehensive solution that covers the full scope of an engine restoration.
What sets Wiseco apart isn't just manufacturing quality — it's their deep roots in motorsport culture. Much of the team behind Wiseco's doors are avid riders and racers themselves, which means product development is shaped by real-world feedback from the track and trail. That philosophy — built for racers, by racers — is woven into every component that leaves their Mentor, Ohio facility. Whether you're chasing a championship or simply want the confidence that comes with a freshly rebuilt engine, Wiseco delivers the performance and reliability that serious builders demand.