robert....remember me asking about the mopar headers for my iron v-10 (which you said weren't available) well i found some other headers but they didn't come with bolts. i need a 5/16"x18 1" long but have to have a six sided 3/8" hex cap. can you see if mopar has these or do you know of an outfit that might have these,(most 5/16" bolts have a 1/2" head. i was told these were a japanese standard size bolt. this,scot