Piston Ring: Labor Times

	Standard Hours	Manufacturer Warranty Hours	Skill Level	Notes
Replace	12.7	9.3	A	Includes: R&I Cylinder Head, Oil Pan & Plastigauge Bearings.
NOTE
With AC, Add	0.4	0.3	A
To R&R Connecting Rod Bearings, Add	0.6	0.5	A
To R&R Main Bearings, Add	1.6	1.3	A
To R&R Piston, Pin or Connecting Rod, Add
One	0.2	0.0	A
Each Additional	0.1	0.0	A
All	0.5	0.0	A
To Grind Valves, Add	3.8	3.2	A
To R&R Timing Chain, Add	1.1	0.0	A
To R&R Spark Plugs, Add	0.3	0.0	A
To R&R Cylinder Head, Add
Bare Assembly	1.9	1.6	A
Complete Assembly	0.8	0.5	A