Mustang Cobra V8-281 4.6L DOHC VIN V MFI (1997)
Piston Ring: Specifications
End Gap
* Nominal
Top Ring ..................................................................................................................................................... 0.25-0.51 mm (0.009843-0.020079 inch)
Second Ring ................................................................................................................................................ 0.23-0.49 mm (0.009055-0.019291 inch)
Oil Ring Rail ............................................................................................................................................... 0.15-0.66 mm (0.005906-0.025984 inch)
Maximum
Top Ring ................................................................................................................................................................................ 1.00 mm (0.03937 inch)
Second Ring ........................................................................................................................................................................... 1.00 mm (0.03937 inch)
Oil Ring Rail .......................................................................................................................................................................... 1.15 mm (0.04528 inch)
Side Clearance, Minimum-Maximum
Top Ring ................................................................................................................................................... 0.0090-0.0235 mm (0.000354-0.000925 inch)
Second Ring .................................................................................................................................................... 0.030-0.080 mm (0.00118-0.003150 inch)
Oil Ring ................................................................................................................................................................................................................ Snug Fit
* Specification in 90.200 mm (3.551174 inch) diameter gauge.
