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Generation III Internal Engine 1997-2006 LS1 | LS6
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psi 1511 retainer/locks?

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Old 05-01-2014, 03:50 PM
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Default psi 1511 retainer/locks?
Can't find a solid answer but I wanna run 1511 springs on my mast small bore ls3's. The stem diameter on the valves are 5/16 opposed to factory 8mm. What retainers and locks would I need? Any recommendations out there? Don't wanna risk dropping a valve with them purrtttyyy heads. Any help is appreciated.
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Old 05-01-2014, 03:51 PM
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Oh and yes I've contacted a couple sponsors but nothing solid yet. Thanks
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Old 05-01-2014, 04:11 PM
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PAC-R363 and PAC-L8150 (radial groove) or PAC-L8148 (square groove).
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Old 05-02-2014, 12:45 PM
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Awesome, I'll look into those part numbers.
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