Wiseco K1608 HD Pan Shovelhead (3467X 4012P3) Piston :. Wiseco K1608 HD Pan Shovelhead (3467X 4012P3) Piston V Twin performance has been around since some of the earliest days of motorcycle racing and engine modification, and Wiseco has been there since the beginning. Applying over 80 years of experience, Wiseco has fine tuned its V Twin pistons for each specific engine platform to optimize performance and durability. From reliable rebuilds to all out race, Wiseco has the pistons for your V Twin build. Engineered, forged, and machined in the USA in Mentor, OH Improved tensile strength of forged material optimizes strength and service life Designed and built specifically for each V Twin engine platform Optimized compression ratio to fit your build and performance goals Wrist pin, rings and circlips included