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Need New Valve Springs. Suggestions?

This is a discussion on Need New Valve Springs. Suggestions? within the Internal Engine forums, part of the LSx Technical Help Section category; My valve springs are at the limit of their serviceable mileage. I have some machined heads and mild cam (360 ...

  1. #1
    Senior Member Naaman's Avatar
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    Cayanne
    98 Z28 Vert M6

    Need New Valve Springs. Suggestions?

    My valve springs are at the limit of their serviceable mileage.

    I have some machined heads and mild cam (360 whp) with room to grow to about 400-450 whp. I'm still running stock intake/exhaust, but may change these out eventually.

    I've done some cursory searching through various options, but not sure how to differentiate what's available.

    I run Amsoil Z-Rod exclusively in the engine, in case that matters.

  2. #2
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/ mods, 00 FBVert

    Need New Valve Springs. Suggestions?

    Brian Tooley Racing......
    http://www.ls1.com/forums/f7/my-6-liter-build-174257/

    http://www.ls1.com/forums/f8/my-8-8-rear-build-165553/

    6.0L Block - Forged 403 built, breaking it in , Polluter Stg3 Cam, FAST 102mm Intake, NW102 TB, MSD wires, NGK TR6 plugs, Truck Coil Packs, LS3 Fuel Injectors, CC Pacesetter LT Headers, TS&P ORY, QTP e-Cutout, Magnaflow Muffler, 104mm Air Lid & Line Lock, Catch Can, Stage 2 T56 w/Viper shaft, PRO 5.0 Shifter, Tick MC, SPEC Stg3+ Clutch, QT SFI BH, MWC DSL, UMI: SFC, PHB, LCA's, LCA Relocation Brackets & TA, Hotchkis Springs (1" Drop), YR1 Snowflake Wheels wrapped in NT555 tires & Custom Fab Ford 8.8 rear w/4.10 Yukon Gears, WSQ Hood, 3"CM Strange Eng Drive Shaft.

    00 FB Vert

    Horsepower never lies, but is often lied about!

  3. #3
    Super Moderator mrr23's Avatar
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    black
    2014 camaro 2ss/rs

    i'll be using vinci high performance SS SK dual springs for my upcoming maintenance swap

    LS1

    HIGH TENSILE CHROME - SILICON STEEL - HIGH LUSTER FINISH
    INCLUDES SUPER LIGHTWEIGHT TOOL STEEL RETAINERS, SPRING LOCATORS ,VITON SEALS , HARDENED LOCKS
    SPECIALLY DESIGNED FOR STREET / STRIP LSX APPLICATIONS

    DROP-IN KIT, NO MACHINE WORK
    SPECS:
    155 lbs @ 1.780"
    360 lbs @ 1.230"
    380 lbs @ 1.180"
    400 lbs @ 1.130 "
    coil bind @ 1.070"
    od; 1.300
    id: .509
    will handle .660" lift with ample coil clearance

  4. #4
    Senior Member Naaman's Avatar
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    Cayanne
    98 Z28 Vert M6

    Ah, yes... Silicon Steel... I just learned about that researching magazine springs. It seems like a no brainer in a valve spring application.

    Vinci's website says the dual springs will not fit iron heads... Not sure whether mine are iron (but I think they are).

    Scott, thanks for the reference.

    Now I have a bunch of homework to do.
    Lid, Throttle Body, LS6 Intake, Heads, Cam, Magnaflow, LS7 Clutch, SFCs, STB, Panhard Bar, Strano Springs, Hollow Sway Bars, Poly/Roto LCAs, Konis, MGW Shifter

  5. #5
    Super Moderator mrr23's Avatar
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    2014 camaro 2ss/rs

    Iron heads come on truck motors like 6.0. 5.7 are aluminum. If you want to make sure, put a magnet to the heads.

  6. #6
    Senior Member Naaman's Avatar
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    Cayanne
    98 Z28 Vert M6

    Oops. I thought that the LS1 had aluminum block and iron heads, while the truck motors had iron top and bottom.

  7. #7
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/ mods, 00 FBVert

    GM got away from iron heads when they went to GEN III LS.

  8. #8
    Super Moderator mrr23's Avatar
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    pictures of the vinci springs i am installing this weekend.

    http://www.ls1.com/forums/f117/sprin...lation-187607/

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