F 350 4WD Super Duty V10-6.8L VIN Y (2006)
2. NOTE: For precision fit, new pistons are divided into 3 categories within each size range based on their relative position within the range. A paint
spot or specific grade size on the new pistons indicates the position within the size range.
Choose the piston with the correct paint color or specific grade size.
Piston - Ring End Gap
CAUTION: Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore.
CAUTION: Piston rings should not be transferred from one piston to another.
NOTE: Cylinder bore must be within specification for taper and out-of-round.
1. Use a piston without rings to push a piston ring in a cylinder to the bottom of ring travel.
2. Use a feeler gauge to measure the top piston ring end gap and the second piston ring end gap.
Piston - Ring-to-Groove Clearance
