Description
S&S Cycle Standard HC Forged Piston Kit: 78-84 Harley-Davidson Big Twin OHV Models - 3-1/2"+.020" - 106-5521
Fitment: 78-84 Harley-Davidson Big Twin Models
These 3-1/2"+.020" standard bore pistons fit 78-84 80" Harley-Davidson big twin engines, producing 8:1 compression with stock unmodified cylinder heads.. The modern alloys used in these pistons, coupled with the advanced skirt profiles, allow them to be fit tighter resulting in low engine noise and long engine life. In the past, this could only be achieved with weaker cast pistons.
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
