Try the US forums.
Not sure on these adjustables (pricing?) but there are also solid versions that you have to machine down to get the correct lash. (Lots of assembling/measure/disassembling needed though to set these up...)
The BLE lifters are not that expensive
http://www.cimotorsp...avalier-cobalt/
the solid ones you have to machine are GM Racing stuff made by Bates Engineering
http://batesengineering.info/
Honestly, considering the flexibility you can have on an engine with dual VVT and (programmable) boost... I won't bother with cams needing them. Just use a nice hydro profile, ZZP have some nice LNF stuff that can make way enough power for the gearbox and the chassis
The problem with using hydraulic lifters is the rev range is limited due to valve float, I image for a race car like Marytnas he wants to be able to get the revs as high as possible.
I don't know about the Z22SE engine, but on the Z20LET the valves (with standard springs) can start to float from 7500 revs. Maybe the LNF stock springs in his new engine are have a higher poundage rate?
These ones are to be machined too
http://www.jbodyperf...&catName=JP0711
Many thanks all you guys
.LNF stock springs have same poundage rate like Z22SE and are very soft. I will use 78 lbs springs, like the most of you
.Valves can start to float on higer revs due 1.springs rate is low, as Nev said, 2. higer boost , 3. hydro lash adjusters pumping on, when camshaft profile is sharper.
So with 78lbs springs I solve one problem and do not know - is this enough or not.
Maybe ever heard that anyone have received experience "before" and "after"?
