Installing Your HHP/PSI Spring Kit

Note: On older 6.1L/5.7L heads, shims go over the spring seat since spring seat/locator has the valve seal built in. For 6.4L/6.2L VVT heads (as pictured in this guide), shims go under the spring seat (they will not fit over).

Old spring and retainer come off:




Spring seat/locator comes off (6.2L/6.4L only):




Install shims:




Reinstall spring seat/locator:




Install new spring:




Install new Manley titanium retainer on top of spring:




Use tool to depress spring/retainer & reinstall valve locks:






Looking for a spring compressor tool? Find it on our web store here:




Applicable spring kits: