LS-1 valve spring Q?
02-23-2006, 01:07 AM
#1
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Car: 91 Firebird Dark Green
Engine: 350 Victor Jr. 2V 2000 CFM TB EFI
Transmission: 700R4 BM 2500 stall
Axle/Gears: 3.73 Zexel torque sensing Posi
LS-1 valve spring Q?
Can the LS-1 valve spring , retainers and locks be used on on L-98, 1st gen SBC. Thanks
Last edited by firehawkslplus; 02-23-2006 at 01:10 AM.
02-23-2006, 01:16 AM
#2
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
The springs can. The retainers and locks can't. You maybe could get some locks to work with the regular SBC valves and LS1 retainers, but its not worth it. The locks can definitely not be used the shape is wrong.
02-23-2006, 06:49 PM
#3
The SBC uses a 11/32 inch valve stem and 7 degree locks on a stock motor. The LS1 uses a 8mm valve stem and 10 degree valve locks. You can buy the correct locks and retainers from Comp Cams. I'm installing the beehive valve springs on my next rebuils. I'm using the Comp Cams 918 springs.
Last edited by 1989GTATransAm; 02-23-2006 at 07:59 PM.
02-23-2006, 07:38 PM
#4
There's some info here:
https://www.thirdgen.org/techbb2/sho...&highlight=LS1
LS1 valvestems are 8mm
You cannot mix LS1 style keepers with stock SBC valves.
You can however swap to 8mm guides and use LS1 valves in SBC heads. Then the LS1 keepers are fine.
https://www.thirdgen.org/techbb2/sho...&highlight=LS1
LS1 valvestems are 8mm
You cannot mix LS1 style keepers with stock SBC valves.
You can however swap to 8mm guides and use LS1 valves in SBC heads. Then the LS1 keepers are fine.
02-23-2006, 10:10 PM
#5
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Car: 91 Firebird Dark Green
Engine: 350 Victor Jr. 2V 2000 CFM TB EFI
Transmission: 700R4 BM 2500 stall
Axle/Gears: 3.73 Zexel torque sensing Posi
Thanks !
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