Ls1 springs installed on a SBC head
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From: wallingford,ct
Car: 91 formula ws6
Engine: 355 tpi OBDII
Transmission: 4l60E
Axle/Gears: 2.73 with 4th gen brakes
Re: Ls1 springs installed on a SBC head
think its ls7 springs? search on here. its there. those dont look right. lol
Joined: Apr 2005
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Ls1 springs installed on a SBC head
You need a retainer like the Comp # 787-16 retainer
http://www.summitracing.com/parts/cca-787-16/overview/
that allows a LSX beehive spring to be used on any reg SBC 11/32" SBC valve stem ( with SBC locks )
http://www.summitracing.com/parts/cca-787-16/overview/
that allows a LSX beehive spring to be used on any reg SBC 11/32" SBC valve stem ( with SBC locks )
Last edited by vetteoz; May 14, 2013 at 02:16 AM.
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From: Moorestown, NJ
Car: 88 Camaro SC
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Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Ls1 springs installed on a SBC head
As said above, the stock retainer and locks are different. From my memory the last time I was working on a later model head they are a metric size and have rounded locating grooves in the locks. Make sure to use the comp stuff as said above. Unlike what you have there, it will stay put and not fly off at some unexpected time. Also make sure to measure your installed height and adjust as needed with offset locks. The standard locks may not put the installed height where it should be, which is something like 1.80" or so.
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
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Re: Ls1 springs installed on a SBC head
Yup ls1 has 8mm stem while sbc is mostly 11/32" which is bigger. Ls1 retainer will not fit a sbc keeper. Need the beehive retainer for sbc size valves which comp and others like pac springs sell
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