Pac Racing 1282LX valve springs -- Godzilla

These are a good choice for a daily driver with stock or aftermarket lifter.  They will take up to .650" lift and the most aggresive lobes designed for a hyd lifter.1282LX specs:

Pac Racing 1282X valve springs -- Godzilla

These springs are more racing oriented and have a max lift of .  They are not a good choice for a daily driver with stock lifters.  For a street driven car/truck a better choice are they 1282LX...

PAC Racing R393 retainer -- Godzilla

These are standard height retainers designed to be used with the PAC Racing 1282X valve springs for the Ford 7.3 Godzilla and are made of Chrome Moly.  

PAC Racing R394 retainers -- Godzilla

Made of Chrome Moly and have and are -.100" on the spring install height, these are designed to be used with the PAC Racing 1282LX, .650" max lift valve springs.  They can also be used with the .750"...