Mahle MS 4.125in+ .005in 1/16in 1/16in 3/16in File Fit Rings

When you're rebuilding an engine and need to get the piston ring end gap just right, a file-fit ring set like this Mahle MS set is what you'll want. These rings are designed to be filed down to the exact clearance your engine requires, ensuring a solid seal between the piston and cylinder wall. This is crucial for proper compression, oil control, and overall engine performance.

Mahle is a well-known name in engine components, and this set is built to meet the demands of an engine rebuild. The ring dimensions are 1/16 inch for the top and second rings, and 3/16 inch for the oil control ring. They are also specified as +.005 inch, meaning they are intended for pistons that are slightly larger than standard bore size, or for applications where a slightly tighter initial fit is desired before filing. The standard tension means they'll provide good sealing pressure without being overly aggressive on the cylinder walls.

Remember that these are file-fit rings, so you'll need the proper tools and a steady hand to set the end gap correctly. It's a step that separates a good rebuild from a great one. Please note that this set is not CARB approved and cannot be shipped to California.