2011 - Crane Cams

Valve Spring Retainers
How to Use the Valve Spring Retainer Dimension, Retainer Height, and Spring to Retainer Charts
The following pages supply you with specific information on the various valve spring retainers, valve stem locks, and their
compatibility with the valve springs that Crane Cams offers. These parts can be used anywhere their physical size can be
accommodated, and where the resulting spring tension and spring travel is compatible with the camshaft, rocker arms,
and lifters. Different combinations of valve springs, retainers and/or locks can be selected to match your particular needs.
SPRING RETAINER DIMENSIONS
Spring Retainer Dimensions are provided so you can determine how the retainer fits the valve springs, see pages 350-351.
Retainer Dimension ”A” fits over the outer spring;
Retainer Dimension “B” fits into the I.D. of the outer spring;
Retainer Dimension “C” fits into the I.D. of the innermost spring.
RETAINER HEIGHT CHART
Crane presents a new simplified method of matching the proper valve spring retainers and valve stem locks to your
required assembly height. Simply measure your cylinder head from the spring seat to the top of the valve stem lock groove
on the valve, and compare that to your needed assembly height. The chart indicates the relative heights for all of our
retainer and standard height lock combinations, from the outer spring step to the top of the lock groove. No fixtures or
sample parts are required, just the ability to measure! You can also take advantage of our wide range of +.050” and -.050”
height locks to further refine your choices. This way you can minimize the shims required to achieve proper heights and
pressures, and provide a more stable platform for your valve springs. See pages 352-354.
SPRING TO RETAINER CHART
This chart shows what retainers are available to fit a particular part number valve spring. It is based on the diameter of the
spring and matching diameter of the retainers. It is further broken down by valve stem size, then the material and design
of the retainer, see pages 355-357.
Crane Cams Has
The Correct
Valve Spring
Retainers,
Valve Springs
And Valve Locks
For Any
Application...
Street Or Race!
866-388-5120 • 386-236-9983 FAX 349