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Undercut Stem Alloy (21-4N)
Comments: Good Low And Mid Range Torque And Pulling Power
Bore Size: 3
Open Load: 258
Engine Pro Performance Racing Rings 43M5577 Undercut Stem Alloy (21-4N)Engine Pro Performance Racing Rings 43M5577 Specifications Size: Std, . 033, . 040, . 060 Bore Size: 4. 3425, 4. 3750, 4. 3825, 4. 4025 Sold in a Set of 8 Applies to: 1 16" 1 16" 3 16" Standard Tension Description: None PREMIUM DUCTILE PLASMA MOLY Shell molded High tensile strength Withstands extreme temperatures Virtually unbreakable Impact resistant plasma moly alloy TOP RING: DUCTILE IRON, PLASMA MOLY SECOND RING: CAST IRON, REVERSE TORSIONAL TWIST
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