aarang Posted January 15, 2007 Share Posted January 15, 2007 Hey guys, In Honzowetz' book he states not to use lash pads thicker than .170 with the stock spring keepers. I am using a Delta regring that requires .180 thick pads and subsequently already bought and installed them before reading the book again!! I was wondering if anyone here is using .170 or thicker pads with the stock keepers and if there have been any problems with them. My guess in my case is that I'm splitting hairs and will be fine, but just trying to make sure I won't run into any problems. Thanks in advance. Aaron Quote Link to comment Share on other sites More sharing options...
JMortensen Posted January 15, 2007 Share Posted January 15, 2007 I believe I ran .180s in stock retainers on my first engine build, it's been a while but that sounds right. Ran it that way for years, up to 7500 rpms at times and never had any issue with the lash pads or losing a rocker arm or any of that. If your new cam has lift of over ~.470 or so then it is really a good idea for you to get some new springs and retainers, because stock tends to coil bind right about there, it kinda depends on how deep your valves are at that point. The other problem area is with the valve stem seals, which hit the retainers at lifts in the .480 - .490 region. Swapping them out for something shorter prevents that issue. You can get the Ford stem seals from any auto parts store to fix that problem. Quote Link to comment Share on other sites More sharing options...
aarang Posted January 16, 2007 Author Share Posted January 16, 2007 It's a pretty small cam for a turbo application, so I'm only at .460 lift. Later down the road I'll get a larger regrind and some Schneider springs. I did install the Felpro/Ford Viton seals just in case. Thanks for the reply. Aaron Quote Link to comment Share on other sites More sharing options...
z-ya Posted January 16, 2007 Share Posted January 16, 2007 I ran .170 pads on my 460 lift cam, and the cam wipe pattern was in the middle of the lash pad. Thats all that matters. As long as the cam contacts the rocker arm on the pad surface, the cam and rockers will last a long time. check the wipe pattern, it is easy to do. You should always check the wipe pattern at assembly time with any cam or lash pad. Quote Link to comment Share on other sites More sharing options...
aarang Posted January 17, 2007 Author Share Posted January 17, 2007 Ya, I actually checked the wipe pattern before buying the lash pads. I just use the stock pads , .120, and make shims out of different thickness aluminum , .050,.060,.070, etc. and put it between the rocker tip and the stock pad. Then I set my clearances to the cold spec and turn the cam trying different shims until the wipe pattern is centered. I just add the amount of the shim and stock pad to see which one I need. Aaron Quote Link to comment Share on other sites More sharing options...
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