Pit Stop USA is The Online Motorsports Superstore! Akerly & Childs uses over 50 years of experience in the racing industry to provide you with the engine components needed to meet the most extreme racing conditions. No matter what type of racing you are into, drag racing, circle track, tractor pulling or even marine/offshore Akerly & Childs have the products to help your engine produce maximum horsepower. Piston installation is as important a procedure as any other during engine assembly. That is why Akerly & Childs Xtreme ring compressors are manufactured with the engine builder in mind. All Akerly & Childs piston ring compressors are machined with a step at the bottom to clear block o-rings when used. Akerly & Childs Xtreme compressors are manufactured from aircraft quality 6061T6 heat treated aluminum and then hard anodized for long life. Akerly & Childs performance piston rings are engineered to provide the best possible sealing for maximum power output. To meet the needs of todayas harsh performance environment Akerly & Childs offers compression rings in multiple materials, widths and types. Material choices include cast iron, cast iron moly, ductile iron moly, HTD / High Tensile Ductile moly, tool steel and stainless steel. Akerly & Childs claimer piston ring sets feature a cast iron or cast moly filled top compression ring, while our premium standard gap and file fit sets feature a ductile iron or steel plasma-moly filled top ring. We feature Akerly & Childs products at low everyday prices.