RBS has found this to be the simplest and most convenient way to change valve springs on Hemi fuel or alch. heads. Simply install the provided spring cups that come with the spring compressor under the valve springs slip the changer over the head on the bench and pull the trigger to compress and pull the other trigger to release.
Spring compressor body is made from durable billet alum. that has been black anodized for corrosion protection and makes the tool manageable to handle.
Please specify 1.610" or 1.760" dia. valve spring when ordering.