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Hastings Cast Piston Ring Set : suit Polysherical/Sawtooth 303ci (.000" / 3.810" standard)

AU$159.00

Quick Overview

Whether you're building a standard or high performance engine, using quality parts will ensure your engine is reliable. View full item description
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Details


We offer only the best piston rings for our engine rebuilds. With years of experience building Chrysler engines, you can trust us to supply you with the best parts to build a reliable engine.

High quality Hastings Cast piston ring set.

Suit: 303ci poly small block introduced by Chrysler/Plymouth in 1956 and 1957

This piston ring set is suitable for 303ci engines that are built standard through to high performance using cast pistons. Race forged pistons require a thin-grove ring set.

Ring Specifications

  • Diameter: 3.810"  Standard
  • Top width: 5/64"
  • 2nd width: 5/64"
  • 3rd width: 3/16"


Hastings Piston Rings
Hastings is the pioneer of oil control ring technology. In 1956, we invented the multi-piece oil ring, followed by the Flex-Vent® expander—the design standard by which all other oil rings are compared today.
The Hastings oil control ring is energized by our Flex-Vent® expander, which provides uniform pressure through two steel rails assuring positive oil control. The three-piece design allows rails to be manufactured with a small cross-sectional area for better conformability to the bores of today’s low-tension, low-friction engines. Our oil rings come in four popular styles.

  • Three Piece Flex Vent
    The Flex-Vent oil ring is the benchmark for oil control ring price/performance. Its three-piece design allows rails to be manufactured with a small cross sectional area for better conformability to bore – even with today’s low-tension, low-friction designs.
  • Two Piece Coil Spring
    Although this design is not as conformable to the cylinder wall as three-piece designs, its rigid cast iron or steel body provides the durable axial structure required to function long term in compression fired diesel engines.
  • Two Piece Inner Spring
    Two-piece spring designs are made for improved tension and better conformability. However, it will not unitize in specific engine design applications or in applications that require severe extended running times. Used in some diesels engines, vintage applications, and compressors, this style is available chrome-plated for long service life.
  • One Piece
    The one-piece design makes for ease of installation and simplicity. It’s available chrome-plated for long service life. The style is used in some diesels engines, vintage applications, and compressors.

Additional Information

SKU 107.88945
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