| This kit includes 12 high performance valve spring retainers made out of chrome moly steel. They hold up much better than the aluminum versions. They are designed to fit our high performance valve springs. This kit does not include valve springs, those must be purchased separately. See listing. We also carry these units for the L4 engines too. If you'd prefer to save some money, we can ship these units anywhere in the Continental US in a padded envelope via USPS for about 7.00. Just let us know if you'd prefer to ship them that way. Last update 12/11 | 
