I have used a thrust button for many years with flat tappet cams in Chevy's, this unloads the lifter and lobe from the job of stopping thrust excersions. My FT failure rate is mostly nill. Not that I'm against roller cams mind you. Plus they can fail as well sometimes the roller just skates the end result looks a lot like a flat tappet out to lunch so you have to be dilligent with these as well.Hello..
I have a 355 small block chevy that I built way back in 1991-2 .
it was built with the good stuff.(well as good as a kid with a low wage job could). lunati crank , oliver rods,
trw floating pin pistons, comp 292 cam and roads lifters, brodix trackI heads,
bowtie single plane intake, arp everywhere..
then life hit,, fast forward to 2012-13 it's still never been ran..
I know I have to open it up as the moly lube is mostlikely mud..
and was thinking of changing to a roller cam and maybe a rev kit(if they are still used/needed)
like to stay hyd if I can get a cam that work with the intake/heads compo.. as I've heard horror stories about the solids lifter failing on a street driven car..
and before someone says it.. yes I could use it as it, with the 292 cam.. but with todays oils and flat tappet cams failure rate.. I'm thinking I'll pass..
but feel free to make points to try to talk me out of a roller.. I'm all ears..