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-   -   roller lifter (https://classracer.com/classforum/showthread.php?t=45609)

Jeff Lee 02-04-2013 05:12 PM
Re: roller lifter
 
Cam F/X lifters. Have not personally run them but I looked at every option out there as I thought I was going Super Stock. My impression is they are the best roller lifter out there.

tim worner 02-04-2013 05:47 PM
Re: roller lifter
 
Can't say about the Isky but the Crower has worked good for us. We use the .903 with no problems. Was told last season there was a heat treat problem with some different batches of lifters, but problem has been fixed.

carl hinkson 02-11-2013 11:00 AM
Re: roller lifter
 
Quote:
Originally Posted by tim worner (Post 367803)
Can't say about the Isky but the Crower has worked good for us. We use the .903 with no problems. Was told last season there was a heat treat problem with some different batches of lifters, but problem has been fixed.
Crower seems to have some issues with there .903 lifters IISKY are great but have seen a lot of sizing issues, One build took 3 sets to make up one set. I don't send any block out the door unless I have lifters in hand to fit.

Jesels and Morels seem to a great lifter and so far never had to send any back because of sizing issues.

Here is a link on roundness issues with crower .903
http://www.yellowbullet.com/forum/sh...fter+roundness

Mike Taylor 3601 02-12-2013 12:30 AM
Re: roller lifter
 
If have lifter problems first thing to check is springs,probaly 8 out 10 times you are gonna find you have other problems causing your lifter problem,especially when quality lifters fail

Bearing failure,axle breakage,flat spots on wheel, broke studs/rock.ers,head coming off valve,burred/stretched keeper grooves,tips of valves marked like X or * stretched timing chains all are signs of valve float,not always but most of time from too weak spring pressure,from wore out spring,wrong spring or setup wrong to start with.

Mike Taylor 3601

Weekend Racer 02-13-2013 09:51 PM
Re: roller lifter
 
Thank !everybody for your comments and advices.

Ed Wright 02-14-2013 08:03 AM
Re: roller lifter
 
Quote:
Originally Posted by Rich Biebel (Post 367749)
Geez Ed.......1000lbs on a little LT-1 ?

Like I said I stay conservative on valve spring pressures.......and it has worked fine for me.....but I am not running a SS engine......and not turning a lot of rpm.

I am sure you used what was recommended by either the cam company or someone else for your engine.....and finishline rpm
Rich, I ran less spring for a while and they didn't last, lash wouldn't stay where I put it, springs were moving around on the heads and the pushrods were beating up the heads at the pushrods pinch. Kept knocking epoxy loose in the ports. Now nothing moves and springs still check good after a full season if I set them up tight enough. I have torn up a lot of crap from not enough spring. Never hurt any parts with a lot if spring.
Just what has worked for me. Mine has never been over 8500 in the lights.


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