When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
If it doesnt need a skim the dont do it, you will be altering your compression ratio and reducing the life of your head (if you need it off and skimmed at a later date due to a HG failure or something.......... only so much meat you can take off before it's scrap). Get it checked by your local engineering company and go from there!