Product informationFor sale here is a complete set of piston rings, suitable for 3.9l Rover V8 engines. We have standard bore and 20 thou oversize available, please ensure that you select the correct rings for your engine from the drop down menu above.
- The second ring is always directional, and sometimes the first ring is too. Our advice is to keep the packaging and instructions the rings come with as it will have the information you require. As a general rule, if a piston ring is directional it will have a dot or the word "TOP" stamped on it, which needs to point upwards but it's always best to check.
- Always measure piston ring gaps and make adjustments if necessary. Ring gaps are below:
1st ring 17 to 22 thou
2nd ring 17 to 22 thou
Oil ring 14 to 50 thou