Quote:
Originally Posted by Pete
WTF.
Paul why did your wifes cam wipe out?
Now for all the smart guys out there that know it all.
Answer me this.
Why only the new lifters went bad but my old 65k mile lifters are still good and i will be reusing them.
I've had my intake cams for over 2 years with no issues till lifter change.
Reason for changing lifters had a nosey one i had to hold 2k rpm for it to load up.
Two of the new lifters have started to show cracks the cam lobes look fine so basicly took out 3 out of 4 new lifters.
So please all you smart guys answer me the above question why they held up for 2 years but as soon as i put new lifters it breaks??
Pete |
There is a difference between the 90-92 lifters and the 93+. Do not remember exactly what but I think the new ones are slightly higher and to use them in an earlier engine Geoff cut the valves down .001. You can use the older lifters in a later engine but using the later in a earlier engine may cause sealing problems.
Tyler
PS Acording to what I know about spring pressures the LT 5 should be ok without the additive. If you use Red Line it still has the older additive package.