A different Q on 340 Vs 416

[1Fast340]

Yep they are much better at scattering needles all through your motor they like to be kept on the lobe and especially do not like valve float

Runing a sensible streetroller and keeping some kind of eye on the valvespringpreasures and thats pretty much a non isue.

 

[yellow rose]

Runing a sensible streetroller and keeping some kind of eye on the valvespringpreasures and thats pretty much a non isue.

That's why I started using hydraulic roller lobes with solid lifters and setting cold lash at .002 and let it run.

 

[Wyrmrider]

yeah it's loose lash and valve bounce/ float that kills them

 

[1Fast340]

That's why I started using hydraulic roller lobes with solid lifters and setting cold lash at .002 and let it run.

Alright thats one way to do it,but why not just run a sensible street solid roller at that point and get more lift for the same duration? alot of Comp XE solidrollers out there doing alot of miles with no isues and i believe those Lunati wodoo cams seem to last quite good aswell and both series run reasonable lash.

yeah it's loose lash and valve bounce/ float that kills them

Yeah loss of springpreasure is bad news for sure,much worse than on a flattapet.

 

[yellow rose]

Alright thats one way to do it,but why not just run a sensible street solid roller at that point and get more lift for the same duration? alot of Comp XE solidrollers out there doing alot of miles with no isues and i believe those Lunati wodoo cams seem to last quite good aswell and both series run reasonable lash.


Yeah loss of springpreasure is bad news for sure,much worse than on a flattapet.

Because the street rollers don't like to be lashed at .002 so the hydraulic roller lobe is quicker off the seat.

Besides, what they call a "street roller" lobe today is nothing but a 1988 "race" lobe.