Speedmaster Piston Ring Set Bore Plasma Moly Zero Gap

Speedmaster Plasma Moly Zero Gap piston ring sets are made for racing and high-performance engine builds. They give a strong cylinder seal, good oil control and consistent ring performance. Each set has a plasma-moly faced top ring, a second ring and a stainless steel oil ring. Sets are offered in a range of bore sizes and ring thicknesses, so you can match the set to your piston and cylinder combination.

Key Features:

• Plasma-moly top ring: a ductile iron, barrel-shaped top ring with a plasma-moly face. It seals against blow-by as the piston rocks in the bore.
• Tapered second ring: seals against the upper surface of the oil control ring for better oil control.
• Stainless steel oil ring: a 3-piece oil ring with stainless steel expanders that applies accurate tension without costing horsepower.
• Made in the USA: Speedmaster piston rings are made in the USA.
• Range of options: available in several bore sizes and ring thickness configurations.

Whether you are building a street/strip engine or a dedicated race motor, these Speedmaster piston ring sets help protect compression, control oil and keep the engine running consistently. Select the child item that matches your bore and ring groove specifications.