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JS100S8-4155-5
AF64-2155BLK
Ultra-Gold ARC Aluminium Roller Rocker Arms The original Ultra-Gold Aluminium Rockers changed the way racing and high performance street engine builders approached valve train design
5 in (140 mm) Outside Diameter: 7 in (178 mm) Top Style: Open Top Material/Finish: None Filter Material: Cotton Gauze Flanges: None Filter Re-Oiling Amount: 0
LS Dual 1905 Springs | Titanium Retainers | Locators | Stem Seals Methanol Injection JS100S8-4155-5CHEVROLET LS V8. Performance Dual Spring kit. This kit features a PAC 1905 dual spring (x16), Kelford Titanium retainer (x16), steel locator spring base (x16) and Viton stem seal (x16). PAC 1905 is best suited to high performance street engines, or mild motorsport engines. For high performance motorsport engines Kelford recommends PAC 1204X. 160lb at 1. 800? installed height. 425lb at 1. 125?. Coil bind 1. 020?.