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Mahle Original piston ring sets are designed to be installer-friendly. They are pre-lapped to seat immediately, virtually eliminating break-in time. Ring materials and coatings, as well as ring tension, are all optimized for reduced friction and extended life in each application. The compression rings feature a barrel-faced contact area for more efficient compression and CNC-controlled gap chamfer to optimize compression and reduce blow-by. Intermediate rings have a reverse twist design for better groove side sealing, and taper race machining to enhance contact. The CP-20 oil ring assemblies feature a 20 degree ear angle, an exclusive feature that provides the best possible side seal against the cylinder wall, and a special chemical polish on the oil ring expander offers enhanced oil drain back. Mahle Original piston ring sets provide unmatched quality and ease of installation, making them the rings of choice for today's engine builders.
( 53 )
$51.99
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$108.99
Clearance
CP Pistons CPK piston kits come complete with a piston, wrist pin, locks, rings, and gasket. The anti-detonation grooves, also known as contact reduction grooves, protect the top ring by disrupting detonation waves. These grooves also limit the piston/cylinder contact during high temperatures and rpm. The featured accumulator groove is a V-shape machined into the second ring to collect excess blowby between the top and second rings. The accumulator groove also collects residual gasses during combustion and alleviates top ring flutter, while increasing ring seal. Other features, such as double pin oilers, in conjunction with their dual fed reservoir, add twice the amount of oil from the cylinder wall to the wrist pin. CP wrist pins have fine grooves that are intrinsically engraved into the product surface at the time of machining. These grooves are transformed into micro-dimple indentations to act as oil reservoirs, and the oil that would normally drain away through the grooves on an untreated product still remains in the dimples. X-forgings minimize friction and reduce weight without compromising strength. CPK piston kits go above and beyond in both quality and dependability.
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$290.00
$99.50
Mahle Performance piston rings evolved from their pioneering use of piston ring simulation and computer development tools to develop rings that provide "free" horsepower by successfully minimizing friction. A large selection of coordinated piston ring sets is available in a variety of sizes, designs, materials, and coatings designed to exceed your high performance requirements. The difference is evident on the dyno and on the track. Features and benefits of Mahle Performance piston rings: * 1mm and 2mm steel top rings with patented HV385 supersonic thermal-spray process applied for superior bonding, increased durability, and increased scuff resistance * 1.5mm and 1/16 in. positive-twist, ductile iron, barrel-faced, plasma-moly inlaid top rings * Sport compact ring sets ranging from 81-100mm with steel-nitrided top rings * Traditional, reverse-twist, taper-faced (RBT) cast iron second rings * Tapered Hook Groove (THG) second rings that offer superior oil control when compared to traditional RBT rings * 3-piece style oil control rings in both standard and low tension * Standard-tension expanders are sold separately for select low-tension rings where increased oil control is necessary * CP-20 design oil rings that are easier to install; chemically polished for better oil drain-back with a 20 degree ear angle to ensure side seal around the ring
( 54 )
$78.92
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$115.74
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