3-1/2" +.020", 80" LC Forged Pistons for 1978-'84 HD® OHV Engines 7" headlights harley 5" square and

5" square and

Engine features 4-5/8" stroke X 4-1/8" bore at 10

*THIS KIT WILL CONVERT THE TREES TO TOURING STYLE

FTI41-FB+1-AS Length excluding threads (2

mounts sold separately for Indian Motorcycle applications

3-1/2" +.020", 80" LC Forged Pistons for 1978-'84 HD® OHV Engines 7" headlights harley 5" square andThese 3 1 2" +. 020" bore pistons fit 1979 '84 80" HD 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. S&S will fit these pistons to your existing cylinders (when purchasing new cylinders,