ring gap on cp pistons on ford 4.6 with ther rings?

Answer 1

Piston ring end gap — compression (top and bottom) 0.23-0.49 mm (0.010-0.020 in)
Piston ring end gap — oil ring (steel rail) 0.05-0.66 mm (0.006-0.026 in) Piston ring groove width — compression (top) 1.520-1.550 mm (0.060-0.610 in)
Piston ring groove width — compression (bottom) 1.520-1.530 mm (0.060-0.0602 in)
Piston ring groove width — oil ring 6.996-7.224 mm (0.275-0.2844 in)
Piston ring width — compression 1.49-1.47 mm (0.0587-0.0579 in)

Answer 2

3 thou per inch of bore.