How much lift can Vortec's truly take without machining? This video has lots of info if you're wanting to set up your Vortec heads on a low budget using stock retainers and valves.
This video is a guide, you must check your heads for proper clearance!
"Drop in" Springs (check specs to insure fitment) ID Min .870 - OD 1.240 to 1.265 - Installed height
1.700" (up to 1.750 if you use offset keepers) * Rocker arms clearance needs to be checked*
Heres a Few options
-Comp cams 980-16 or 981-16
-Howards 98214
-Elgin 943XK
Felpro valve seals : SS72861 https://www.amazon.com/Fel-Pro-SS72861-Valve-Stem-Seal/dp/B000C2CM8O/ref=sr_1_1?crid=3QSOMUB30FYJ3&keywords=ss72861&qid=1688162225&sprefix=ss72861%252Caps%252C107&sr=8-1&_encoding=UTF8&tag=cuttersperfor-20&linkCode=ur2&linkId=f2acb2d1583b0140c077ce4ac55ffb1b&camp=1789&creative=9325
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