<VV> Lifters interchangeable?

tony.. tony.underwood at cox.net
Thu Feb 11 23:37:04 EST 2021

On 2/11/2021 10:09 AM, Charles h. Sadek via VirtualVairs wrote:
> They are. FLAPS used to list high performance Chevy small block lifters.
> Those are good for our high performance engines.

The only difference is that Corvair lifters as supplied had deeper 
seated pushrod cups, aka "deep dimple" lifters.  This helped keep the 
pushrod seated in the lifter should valve lash get outta wack.  This 
could cause the pushrod to drop out of the lifter cup and actually end 
up in the lifter bore and ride on the rim of the lifter, if for 
instance, a rocker nut were to loose its crimp and slowly begin backing 
off.   Horizontal lifter configuration etc.  Gravity works.

If valve lash is kept correct and you don't rev the engine past valve 
float, plain ordinary Chevy lifters work fine.  Valve float is usually 
only an issue with hi-perf Corvairs like autocrossers and road race 
versions etc. and even then you really have to Try to pop a pushrod out 
of the lifter cup.


This email has been checked for viruses by AVG.

More information about the VirtualVairs mailing list