Thread: roller rockers?

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Ok I have not opened many Hot Rod Books for some time now Ha-Ha . But I did remember David Vizard talked about this in one of his many H.P Book's .

Here are his thoughts ( The operating tip of roller rocker rolls across the tip of the valve , side loading on the valvestem is dramatically reduced, this increases stem and guide life . and since high valve lift can greatly increase side load and wear , especially if you use stamped-steel , stud mounted rockers )

Ok I would go by what He said . My thoughts / 2 Cents any one can see a round rolling part will have less friction then a Flat part rubbing up and down and walking on another Flat part . They get enough oil I have taking Roller Tip Rockers off with over 100K miles that had no wear on the Roller Tips and the Valves come right out of the Head's you Don't have to file them first .

Originally Posted by tango

Ok I have not opened many Hot Rod Books for some time now Ha-Ha . But I did remember David Vizard talked about this in one of his many H.P Book's .

Here are his thoughts ( The operating tip of roller rocker rolls across the tip of the valve , side loading on the valvestem is dramatically reduced, this increases stem and guide life . and since high valve lift can greatly increase side load and wear , especially if you use stamped-steel , stud mounted rockers )

Ok I would go by what He said . My thoughts / 2 Cents any one can see a round rolling part will have less friction then a Flat part rubbing up and down and walking on another Flat part . They get enough oil I have taking Roller Tip Rockers off with over 100K miles that had no wear on the Roller Tips and the Valves come right out of the Head's you Don't have to file them first .

maybe you should go back and read what i posted ?? i said that the steel stamp rockers do show wear as there as lack of oil to the tip and push rods may not be the right length .to say the tip is flat ? yep when they wear out there flat you would under stand contack point on a rocker / stem point . if you did any mild lift check s ? have you ?