Product information "74 inch FL-FLH Piston Set .040 Oversize"
11-9729 - 74 inch FL-FLH Piston Set .040 Oversize
Wiseco piston set is .040 oversize and is for a 3-7/16 inch bore . Piston set has a 9:1 compression 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 Models: FL 1941-1977 FX 1971-1977
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