Roller lifters

[Highbanked Hauler]

  Can they be used with a flat tappet cam and are they worth the expense ? This 440 has 1.6 roller rockers with adjustable push rods and Hydraulic lifters.  Just wondering.

[Chryco Psycho]

No you cannot use a roller lifter on a Flat tappet cam , first the cam is too soft & second the lobe is tapered so the lifter only touches one side of the lobe when the valve is closed to rotate the lifter .

[Highbanked Hauler]

No you cannot use a roller lifter on a Flat tappet cam , first the cam is too soft & second the lobe is tapered so the lifter only touches one side of the lobe when the valve is closed to rotate the lifter .

Wish I could find the Ad again as I thought it said they were to replace hydraulic lifters.  Thanks.

[oldkimmer]

..............was it an add for retro fit roller lifters............there are hydraulic roller lifters, they need to be used with a hyd roller cam.............kim.........

[Highbanked Hauler]

..............was it an add for retro fit roller lifters............there are hydraulic roller lifters, they need to be used with a hyd roller cam.............kim.........

    You very well could be right and I read it wrong, wouldn't be the first time.