Quote:
Originally Posted by GOSFAST
Hi Casey, I can only give you "shortest" (adjuster all the way in) dimension, don't have the "longest" (adjuster all the way out) dimension handy.
These appear to be able to get down to 1.600"/1.625" (nominal), at this number I strongly recommend you have the lifter-bores drilled, if not, could be another "project" getting them adjusted!
This section of this post is really important:I'll give you another "tip" for what it's worth. Years ago when we did use the longer (Chevy) valves due to "necessity" (and these were on very rare occasions) we finally realized if we really did need the extra length on the valves it was much better using conventional Chevy lash caps along with the "standard" Ford length valves to add between .060" and .080" to the overall height. This method had NO ill effects on the spring heights/pressures necessary, it ALL remained "standard" for the most part. It was so simple it was "scary"!
My good friend ran that stock car (I mentioned here earlier) I believe up at Loudon with the lash cap setup for many years and always up in the 5000 RPM range. If you go over to my photo-hosting site there is a shot of this ride there.
Thanks, Gary in N.Y.
P.S. Just one final tip about the lifters, under NO circumstances purchase any lifters advertised/labeled as "Johnson-Style", chances are they will be "off-shore" mfd!! If you have any lifter questions simply call "Hylift-Johnson" @ 800-441-1400, ask for Paul. This is the division of "Topline Automotive".
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Looks like I just missed them. Thanks for the closed spec. Care to wager a guess at how far out they adjust? Do they have a 1/4" in them? I need about 1.745" for my shortest valves, and would like to be somewhere in the middle of the adjustment at that length. I can't get anybody with a NOS set of non-adjustable lifters to measure a lifter for me.
Also, from asking around, it looks like a set of Zephyr springs at my tall Chevy valve installed height will be pretty close on the seat pressure. Maybe close enough that I can run a single shim anyway.
I'm not out of the woods yet, but I'm developing a plan of attack...