Standard item on early models

02-13 FLHR

Fits: > 70-82 FL

36-48 74/80" FLATHEAD

Classic shaped design with a short 1-3/4" rise

Piston Kit 74" +.060 8,5:1 Lowering Kits Standard item on early modelsReplica 3 7 16" bore piston set has a 8. 5: 1 compression ratio and is oversize . 060. Piston set includes Hasting rings, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. The skirt dimension across the widest part of the piston measures 3. 485". **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. More Information