Premium Single Bee Hive valve spring kit to fit generation 2 LT engines (1992-1997 LT1 and LT4 engines). Kit includes PAC-1219 springs, Comp 648-16 locks, Comp 787-16 steel retainers, Comp 4705-16 locators, and Tick Performance viton valve stem seals. An Upgrade to Comp 788-16 Titanium retainers is available.
On stock LT1 aluminum cylinder heads we have found these springs to install at 1.740" to 1.750" with the included components at between 145 and 150# of pressure. At .600" lift open pressure is around 360 #. Manufacturer suggest coil bind is 1.100" but we have found it to be slightly less at 1.080".
