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Sealed Power R9902-30 Plasma-Moly Piston Ring Set Bore - 4.030

Part of: Sealed Power Plasma-Moly Piston Ring Set Bore

Other options in this family: Sealed Power R-10607.75MM Sealed Power R-10606.75MM Sealed Power R-10607 Sealed Power E229K40 Sealed Power E229K30

Manufacturer

Picture for manufacturer Sealed Power

Part Number

R9902-30
6 reviews
Sale Price

$158.04

In Stock (7)

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Usually delivered within 2 days

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Product Details

The Sealed Power R9902-30 is a premium plasma-moly piston ring set designed for 4.030" bore applications, commonly used in 0.030" overbore V8 engine rebuilds. This high-performance ring set features advanced materials and construction engineered to deliver exceptional sealing, durability, and longevity in both performance and street applications.

Key Features:

  • Plasma-moly coated barrel-shaped top compression rings made from high-strength ductile iron for superior blowby resistance
  • Ring dimensions: 1/16" top ring, 1/16" second ring, 3/16" oil control ring
  • Tapered secondary compression rings that seal against the oil control ring's upper surface for excellent oil management
  • 3-piece oil ring assembly with stainless steel expander providing optimal tension without robbing horsepower
  • Plasma-moly facing material offers excellent oil retention and rapid break-in to cylinder bore surfaces
  • Standard gap design for drop-in installation on properly prepared cylinder bores
  • Set includes rings for one piston (8 sets required for complete V8 engine)

Sealed Power's plasma-moly piston rings are engineered to withstand the rigors of high-performance street use and racing while providing long service life. The porous plasma-molybdenum facing delivers exceptional scuff resistance, reduced friction, and reliable sealing even when pistons rock in their bores during extreme operating conditions.

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excellent service, i had to wait a few days for the order to be processesed, but only because i ordered on Friday afternoon, but love the site!

Great prices and fast shipping. What more are you looking for?

This was my first purchase from Autoplicity, and it was an excellent experience. They had the Motive brake bleeder adapter I needed at the best price I could find on the web. Shipping was prompt and the transaction was super smooth. Thanks!

Shipped out fast. Prices are very competitive. Couldn't ask for more.

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