How tight to set solid lifters
This was one of the articles I read that lead me to setting them a tad wider:
“What I Learned Today” With Jeff Smith — Cold Lash Vs. Hot Lash
From the article:
Thermal Expansion Table
Because the engine dimensions will change with the heat of operating temperature, Crane Cams came up with a chart that we’ve reproduced here that compensates for cold lash settings compared to the published specs for an engine fully warmed up:
Block Material
Head Material
Lash Adjustment
Iron
Iron
Add 0.002”
Iron
Aluminum
Subtract 0.006”
Aluminum
Aluminum
Subtract 0.012”
This article from Motortrend had slightly different advice but a similar theme:
https://www.motortrend.com/how-to/1707-how-to-set-valve-lash/#:~:text=Generally speaking, if you are running an engine,of an inch tighter than your hot number
.
This is a repeat of the top article, with Crane Cams again as the source:
Rockin’ The Lash: Setting Valves Cold With Hot Lash Settings
Hopefully I'll do my own measurements hot vs cold very soon so I can confirm who is correct.
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