Wiseco piston set is .010 oversize and is for 3-3/16" bore . Piston set has a compression of 10:1 and includes rings.

VT No: 11-9721
Wiseco piston set is .010 oversize and is for 3-3/16" bore . Piston set has a compression of 10:1 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:
XL 1972-1985
UOM: 1 - KIT
Country of Origin: USA

Manufacturer: Wiseco
2018 Catalog pages: 860

2017 Catalog Page: 860

V-Twin Manufacturing Part Number: 11-9721
Manufacturer: Wiseco
Manufacturer Part Number: K1601

Harley-Davidson & Indian OEM Cross Reference Part Numbers:            

Replacement Items:
11-9749 - 1000cc Piston Ring .010 Oversize

Detailed Instructions: CLICK HERE!