No hassle
Live in-stock
Save over
60% retail
You have no items in your shopping cart.
June Sale: $739.91
In Stock
May ship from manufacturer
Free Shipping
Part number: K240A6
Competitor Pricing
Product Details
Wiseco Pistons K240A6 in our Pistons Department
Products specifications
Bore 4.56
Bore (in) 4.560 in.
Bore (mm) 115.824mm
Comp Height 1.27
Comp Ratio @ 110cc 15:1
Comp Ratio @ 114CC 14.2:1
Comp Ratio @ 119CC 13.5:1
Comp Ratio @ 123CC 13:1
Compression Distance (in) 1.270 in.
Dome Volume 42.4 Hollow
Gram Weight 618
Notes Hollow dome with full round type skirt design.
Pin Diameter (in) 0.990 in.
Piston Head Volume (cc) -42.40cc
Piston Material Forged aluminum
Piston Ring Thickness 1/16 in. x 1/16 in. x 3/16 in.
Piston Style Dome, with single valve relief
Quantity Sold as a set of 8.
Rod 6.385 / 6.800
Stroke 4.250 / 4.250
Wrist Pin Style Press-fit or floating
Wiseco Pistons K240A6 2618 Alloy Forged Pistons
Open Chamber Dome
502 Dome
Light Weight Drag
Open Chamber
Fits 9.750 Deck
Set of 8 Pistons
Recommended RingSet: W100H8-4560-5
Rings Sold Separate
Includes Pins: S460
Full Round Skirt

World renowned for their work building race winning pistons, Wiseco utilizes experience from a diverse background of the most sophisticated engines in such venues as Formula 1, Indy Racing League (IRL), NHRA Pro Stock, Moto GP, AMA Superbike, AMA Motocross and Supercross to design and manufacture the highest technology pistons available.


  • Valve Pocket designs that allow maximum flow around valve, also allowing oversized valves and high lift cams to be utilized.
  • Piston Crown shapes designed to promote maximum Intake Charge efficiency through scavenging mixture ?Cross Flow? during intake and
    exhaust valve overlap. More fuel and air equals more horsepower!
  • Piston Domes designed for optimal quench during the compression/ combustion cycle, resulting in resistance to detonation and preignition.
    The end result is longer engine life and increased horsepower potential.
  • Precision machined ring grooves with proper orifice/accumulator volume feature calculated groove root diameters and axial widths, providing
    excellent surface finish and flatness, maximum ring seal and minimized blow-by and oil consumption.
  • World class, ISO Certified, forging facility that utilizes the latest technologies ? Featuring complex forged shapes, advanced materials, and feature-aligned grain flow technology.
  • Complex Piston skirt profiles that reduce power robbing friction, yet promote stability in the bore for optimum ring seal.

ArmorGlide Skirt Coating
Wiseco?s new ArmorGlide skirt coating is the result of testing, development, and benchmarking through our in-house dyno program. The outcome ? minimized friction, maximum 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. Better ring seal reduces noise from piston rock. ArmorGlide is being applied to selected pistons.

Add your review
Ordered some tires on Friday and got them on Monday. How much better shipping time can you get!! Best price I could find too.
Great price and fast shipping!! i would order parts again from here.. Thanks
Good supply and reasonable
Great price and fast shipping. Can't wait to try these pads out!
Show All Reviews
Return Policy
Returns are easy at THMotorsports
Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy