Pure Stock Valve Spring rule

russellauto1 · 05-13-2014, 04:13 PM

I am ready to replace the valve springs on My 16000 mile Pure stocker lt1 engine. I am having trouble finding Factory valve springs. Everyone wants to sell me LT4 spring which closed seat pressure is 105. The rules say I have to run 85#@1.78 height . Does any one know of a vendor that has stock lt1 spring? The oem number from GM has been discontinued. Or would the lt4 spring be considered a superseded part for the lt1?
Thanks Aaron

VALVE SPRINGS: Stock replacement per OEM spec. and must check on factory spec. open and closed pressure

05-13-2014, 04:13 PM	#1
russellauto1 Member Join Date: Oct 2008 Posts: 149 Likes: 2 Liked 35 Times in 6 Posts	Pure Stock Valve Spring rule I am ready to replace the valve springs on My 16000 mile Pure stocker lt1 engine. I am having trouble finding Factory valve springs. Everyone wants to sell me LT4 spring which closed seat pressure is 105. The rules say I have to run 85#@1.78 height . Does any one know of a vendor that has stock lt1 spring? The oem number from GM has been discontinued. Or would the lt4 spring be considered a superseded part for the lt1? Thanks Aaron VALVE SPRINGS: Stock replacement per OEM spec. and must check on factory spec. open and closed pressure Last edited by russellauto1; 05-13-2014 at 04:50 PM.