Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
Top Ring Groove
« Back to Glossary Index
Top ring groove insert A piston ring that has a nickel-iron or comparable metal insert cast into the piston heads. The top ring groove is cut into this metal. As the top ring grooves in aluminum pistons pound out of shape, this insert groove will prolong the useful life of the piston and ring.
« Back to Glossary Index
