Thread: Pro and con of gear drive timing?

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oh they hold up they are gears but i do not see much use for them when valve springs can fail and cost up to 400+ a set i not going to put one in a mild street engine or race i build engines for sand drags mud asphalt 1/4 drags i have never seen a need for them.i guess i have no use for them i build alot of engines that get hammered very hard no grear drives to worry about one less thing that adds nothing thing but trouble .what you have to ask your self if you want to put money down on some thing that can break you valve springs and add significant amount of harmonics to your engine to say it will work yes it will turn your cam so yes it will do that and maybe more were are the guys that say there great if you suck a valve from a bad spring