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Hastings | Cast Ring Set
High strength ductile iron top ring for heavy duty applications. Second ring is a torsional reverse twist design. Featuring the famous Flex-Vent 3-piece oil control ring. First introduced in 1956 and still widely preferred by professional engine builders.
Part Type: Piston Ring Set
Bore Size (in): 4.125"
Bore Size (mm): 104.775mm
Piston and Ring Oversize (in): Standard
Piston and Ring Oversize (mm): Standard
File Fit: No
Gapless: No
Top Ring Thickness: 5/64"
Top Ring Material: Iron
Top Ring Facing Material: Phosphate Coated
Second Ring Thickness: 5/64"
Second Ring Material: Iron
Second Ring Facing Material: Phosphate Coated
Oil Ring Thickness: 3/16"
Oil Ring Material: Chrome Plated Carbon Steel
UPC: 00075538031802
Manufacturer: Hastings
Manufacturer's Part Number: 661S
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Set
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