I have reused TTIs gaskets in the past without isues,those and MrGasket Ultra Seals(probably the best part MrGasket has ever made only bad thing about them is that they somehow managed to get the partnumbers reversed betwen 273/318 and 340/360 gaskets,may be fixed nowadays or might just have been a bad batch 10 years ago or so ) tend to be reusable forewer uless they somehow manage to stick to the head or headerlange they where sealing and pieces of them stay on one of the surfaces when parts are taken apart.
