Pistons, Pins & Piston Rings (7.4L)
WARNING: This page does not describe the selected car, but rather 55 other vehicles, including the 1999 Oldsmobile Bravada, 1999 GMC Yukon, 1999 GMC Suburban, 1999 GMC Sonoma, and 1999 GMC Sierra. However, it is still accessible from the selected car via links, so may be relevant.
PISTONS, PINS & RINGS (7.4L)
| Application | In. (mm) | ||
|---|---|---|---|
| Piston Clearance | .0018-.0048 (.046-.219) | ||
| Pin Diameter | .9895-.9897 (25.133-25.137) | ||
| Piston Fit | .0002-.0007 (.005-.017) | ||
| Rod Fit | .0021-.0031 (.053-.079) Interference | ||
| Rings | |||
| No. 1 | |||
| End Gap | .01-.018 (.254-.457) | ||
| Side Clearance | .0012-.0029 (.031-.074) | ||
| No. 2 | |||
| End Gap | .016-.024 (.406-.609) | ||
| Side Clearance | .001-.0029 (.025-.074) | ||
| No. 3 (Oil) | |||
| End Gap | .01-.03 (.254-.76) | ||
| Side Clearance | .005-.0065 (.127-.165) | ||