Piston Rings - 4" to 5"

High quality 4” x 1/8” piston ring suitable for vintage engines with a 4” standard bore. These compression rings have a radial depth of 0.140”, please check your piston ring grove for suitability before ordering.

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High quality 4” x 3/16” piston ring suitable for vintage engines with a 4” standard bore. These oil control/scraper rings have a radial depth of 0.140”, please check your piston ring grove for suitability before ordering.

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High quality 4-1/8” x 1/4” piston ring suitable for vintage engines with a 4-1/8” (4.125”) standard bore. These compression rings have a radial depth of 0.170”, please check your piston ring grove for suitability before ordering.

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High quality 4-1/4” x 1/4” piston ring suitable for vintage engines with a 4-1/4” (4.250”) standard bore. These oil scraper rings (oil control ring) have a radial depth of 0.155”, please check your piston ring grove for suitability before ordering.

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High quality 4-1/2” x 3/16” piston ring suitable for vintage engines with a 4-1/2” standard bore. These compression rings have a radial depth of 0.150”, please check your piston ring grove for suitability before ordering.

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High quality 4-1/2” x 3/16” piston ring suitable for vintage engines with a 4-1/2” standard bore. These oil scraper/control rings have a radial depth of 0.150”, please check your piston ring grove for suitability before ordering.

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High quality 4-1/2” x 1/4” piston ring suitable for vintage engines with a 4.5” standard bore. These compression rings have a radial depth of 0.145”, please check your piston ring grove for suitability before ordering.

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