ls/vtec motor, fully built, new arp rod bolts, less than 10k on motor.
i have very very slight seepage on the left and right sides at where the head meets the block, but nonetheless its still a leak. no oil in coolant, no overheating. oil level is fine. do i absolutely need a new head gasket? have pics if requested.

 

Well, yeah get a new LS headgasket, it's not that hard to do can be done in less than a days work. BTW make sure the gasket you get isn't a 50 dollar shucks HG, I made that mistake as a N00b. Dealership only.

 

how do i know what bore size i need?