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Forged from 8740 Chromemoly steel
Steel Retainer Number: 03-1004
Dimension B: 0
Engine Pro Performance Nitro Black Beehive Springs 02-1200-16 Specifications
Engine Pro Performance O.D. Valve Spring Cups 03-2007-16 Forged from 8740 Chromemoly steelEngine Pro Performance O. D. Valve Spring Cups 03 2007 16 Specifications Spring O. D.: 1. 560 Cup O. D.: 1. 740 Cup I. D.: . 635 Shoulder Height: . 128 Thickness: . 152 Applies to: N A Description: Our O. D. spring cups are manufactured from 4140 steel case hardened to a minimum of . 010" ensuring proper spring location and long life even under extreme spring pressure conditions in today's high performance engines. Heat Treated CNC Machined Black