Part # 20-20650 - Kibblewhite Spring Kit Beehive .600" lift Harley 1984-2004 5/16" Stem
By taking advantage of the latest development in valve spring wire chemistry and manufacturing techniques, KPMI has developed ovate wire “Beehive” style springs that will live and perform at a high level in Harley Davidson applications. By coupling these developments with strict KPMI design protocols and employing multiple design, simulation, and FEA analysis software, we were we able to overcome the torsional stresses unique to ovate wire springs that previously severely limited their operating parameters. This was critical, as there are nearly 100 camshaft part numbers available for these applications. KPMI Beehive Springs are progressively wound using Kobe Super-Clean chrome silicon based wire that is heat treated and shot peened. KPMI uses its tightly toleranced, FEA designed hardened steel Posi-Loc™ style retainer in these applications to insure correct assembly height and resist keeper “pull through”. The hardened steel basewashers included in these kits are designed to locate the spring and control lateral movement. Description: 0.600" Valve Lift OK 160-170 lb. Seat Pressure / 370 lb. at .600" lift Retainers: Heat Treated Steel Retainers Springs: Chrome Silicon Springs Basewashers: Heat Treated Steel Lower Collars
160 - 170 lb.
PRESSURE METRIC N/mm
PRESSURE U.S. lbs/inch
1984-2004 Big Twin Harley Engines (EVO & Twin Cam) with 5/16" Valve Stems
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