Wiseco piston set is .020 oversize and is for a 3-7/16" bore . Pistons have a compression of 9:1 and includes rings.

VT No: 11-9727
Wiseco piston set is .020 oversize and is for a 3-7/16" bore . Pistons have a compression of 9:1 and includes rings.
**Note:Run engine at moderate speeds for at least 500 miles, avoiding excessive running in lower gears, in order to properly break-in new pistons and rings.
Fits:
FL 1941-1977
FX 1971-1977
UOM: 1 - KIT
Country of Origin: USA

Size: .020
Manufacturer: Wiseco
2018 Catalog pages: 531

2017 Catalog Page: 535

V-Twin Manufacturing Part Number: 11-9727
Manufacturer: Wiseco
Manufacturer Part Number: K1607

Harley-Davidson & Indian OEM Cross Reference Part Numbers:            

Replacement Items:
11-9755 - 74" FL-FLH Piston Ring .020 Oversize

Detailed Instructions: CLICK HERE!