Chevrolet Small Block - LS1/LT1 Valve Stem Size: 0.313 Diameter (A): 1.235 Out Step Diameter (B): 0.88 Inn Step Diameter (C): 0.611 References: Dble Spring. -7 Degree Pro CNC Retainer. Can be used with OEM Valve Lock, Ferrea Racing Spring # SS10042, S10048 and S10061 Ferrea Valve Lock # K10058 (Sold Individually)
Chevrolet Small Block - LS1/LS7 (5/16 Conversion Kit) Valve Stem Size: 0.3125 Diameter (A): 1.21 Out Step Diameter (B): 0.927 Inn Step Diameter (C): 0.66 References: Dble Spring. Pro CNC Retainer. SUPER 7, Ferrea Racing Spring # S9910 and Ferrea Valve Lock #K10042 (Sold Individually)
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