Perfect Circle's automotive piston rings offer OEM-type quality, premium materials, and trouble-free installation. They are manufactured under strict quality controls. Most applications offer a choice of premium or standard ring sets--premium ring sets contain either moly or chrome-faced top compression rings for long life under severe operating conditions. The 3-piece oil rings use a stainless steel expander between two chrome-faced steel rails to provide a high degree of conformability within the cylinder bore. Perfect Circle precision ground performance piston rings are built so that they can't be installed incorrectly--an important feature that can save you time and trouble. Other features, such as high-strength materials, special ring face contours, and torsional designs will help ensure optimum compression sealing and oil control. For your next overhaul or re-ring, use Perfect Circle piston rings to provide high quality, performance, and consistent reliability.

Whether you're repairing a modern computer controlled engine, or rebuilding an older engine, be sure to specify Perfect Circle piston rings - trusted by professional automotive technicians for over 100 year

Item Code	40564CP-030
Product Type	Ring Set
Manufacturer	Clevite-Perfect Circle
Application	UNIVERSAL STREET / RACE
Bore (inches)	4.030
Top-Ring Groove	5/64"
2nd-Ring Groove	5/64"
Oil-Ring Groove	3/16"
Ring Type	Moly
Fitment Type	Pre Fit
Oil Tension	Standard
Qty	8 Cylinder Set
Notes	Classic Moly - Conventional