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Engines over 800 HP: make sure you use a high tensile ARP 625 fastener
ensuring a stable valvetrain and worry-free performance at high RPM
This will bolt right onto your stock turbo and is made to reduce back pressure
035 Bore (197952435)
these retainers pair perfectly with our #110 valve springs for reliable high-RPM performance
1989-1998 Cummins 5.9L Hamilton Cams HD Valve Springs (07-s-001) 2001 - 2004 GM Engine Builds Engines over 800 HP: makeUpgrade your 12 valve Cummins valvetrain with our Conical Beehive Valve Springs, delivering 155 lbs of seat pressure to keep valves firmly under control up to 4,500rpm RPM or 65lbs of boost drive pressure. This conical design offers enhanced stability for moderate cams and OEM size valves, all the way up to 4,500 RPM. Why Conical Beehive Springs? Improved Valvetrain Control: Reduce valve float and reversion, critical issues when boost and RPM levels
US$ 6747.50
US$ 3697.50