hey guys i have stock lifters in my truck i know i need to replace them because i have a new cam 236/242 .580/.590 because they are ticking. i dont know what lifters i should go with should i just put stock lifters back in it or go with another lifter such as the ls7 or other gm based lifter? Any advise would be helpfull.
ive heard a lot of people go with the LS7 lifters. theyre not very expensive.
thunder racing has em in their DOD delete kit
2008 GMC Sierra
1998 GMC YUkon 4X4
2007 Kawasaki Vulcan 900 Custom
thats a big cam. what is it in?
04 RCSB 5.3, Homemade 80mm FM, TU1, TH400
LS7 lifters, inexpensive and good for 7000 rpm.
GET OUT OF HERE WITH THAT RICER MATH!
Originally Posted by pl4yboy
the cam is in my 5.3 silverado
wow. Hows it feel? And lope? also +1 on the ls7 lifters, thats what im going with when i do my build this summer. Do u have an idle video or track times or dyno numbers?
04 RCSB 5.3, Homemade 80mm FM, TU1, TH400
it feels great from a 30 roll it pulls really hard but i dont have the right stall so from a dig its not as great as it will be. i dont have a video as of yet ill try and get one today. then you can be the judge on the lope.
Your lifters may be ticking because of the smaller base circle diameter of that big cam. Did you measure lifter preload after you installed it? What length pushrod did you use?
no i didnt measure it they are the stock pushrods. the guy said i may need 7.5 length pushrods.
If you installed the appropriate springs with the cam, you really should invest in hardened pushrods. The factory units are the weakest link in your valvetrain. 7.5" pushrods will be way too long. It's best to measure using an adjustable pushrod, but if you can't, I would suggest using 7.425".
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