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Thread: what valve springs u guys running?

  1. #41
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    Before I read this thread I have puchased the Z06 Yellows, now, after I just ordered Patriot Performance 8401 Kit. Thanks for stopping me from making a big mistake, lol. Z06 springs for sale, lol!
    04 GMC Regency - Building a 6.0 Comp 7.4" Hi-Tech Pushrods, Patriot Performance 8401 Spring Kit, Comp Double Roller Timing Chain, ARP Rod Bolts, ARP Head Bolts, Cam - I dont know yet, any suggestions???
    89 Chevy Cheyenne - 10/24/09 Time of death declaired at 8:16pm.

  2. #42
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    the yellow z06 springs are just fine for cams under .570 lift...how many have you actually heard of failing?
    2007 RCSB|DTR81 built LSx 3xx|PRC|NX|BOGART|MSD|QUICKFUEL 950 E85|4L80|FTI Converters|Smith RaceCraft|Racepak
    midweststreetcars.com

  3. #43
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    Whos said I was going under .570 of lift? I dont know what cam yet, now I can get whatever I want and not have to worry. Only takes one to take out a piston, valve, head, cylinder.
    Last edited by Sargen; 10-26-2009 at 12:03 AM.
    04 GMC Regency - Building a 6.0 Comp 7.4" Hi-Tech Pushrods, Patriot Performance 8401 Spring Kit, Comp Double Roller Timing Chain, ARP Rod Bolts, ARP Head Bolts, Cam - I dont know yet, any suggestions???
    89 Chevy Cheyenne - 10/24/09 Time of death declaired at 8:16pm.

  4. #44
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    it was simply a statement there cowboy...

    also know that these dual springs put added stress on your valvetrain that could also lead to premature failure. just because you have the best/most expensive parts doesn't necessarily mean you don't have to worry. ANY part CAN fail
    2007 RCSB|DTR81 built LSx 3xx|PRC|NX|BOGART|MSD|QUICKFUEL 950 E85|4L80|FTI Converters|Smith RaceCraft|Racepak
    midweststreetcars.com

  5. #45
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    Quote Originally Posted by parker View Post
    it was simply a statement there cowboy...

    also know that these dual springs put added stress on your valvetrain that could also lead to premature failure. just because you have the best/most expensive parts doesn't necessarily mean you don't have to worry. ANY part CAN fail
    True, dual springs are more stiff, which causes extra stresses, but that is why you upgrade your retainers, pushrods, and lifters in conjunction with the springs to make sure the risk of failure is less.

    Also true: Any part can fail, but dual springs act like insurance for your valvetrain...if one spring fails, there is a second one to take over and not let a catastrophe happen.

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  6. #46
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    Quote Originally Posted by parker View Post
    the yellow z06 springs are just fine for cams under .570 lift...how many have you actually heard of failing?
    I have never heard of Z06 springs failing--even when they are used on .590 - .600 lift cams. Yes, its true--there are some people out there who have done this and gotten away with it...for now. When you take a mechanical part and push it past its recommended operating range, it can hold up to a point...but eventually it will fail.

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  7. #47
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    ^^^don't tell anybody but i agree with every word you said
    2007 RCSB|DTR81 built LSx 3xx|PRC|NX|BOGART|MSD|QUICKFUEL 950 E85|4L80|FTI Converters|Smith RaceCraft|Racepak
    midweststreetcars.com

  8. #48
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    Quote Originally Posted by parker View Post
    it was simply a statement there cowboy...

    also know that these dual springs put added stress on your valvetrain that could also lead to premature failure. just because you have the best/most expensive parts doesn't necessarily mean you don't have to worry. ANY part CAN fail

    I didnt indend to sound angry, i appologize. No hurt feelings. And they really wernt that expensive, summit has some amazing deals.
    04 GMC Regency - Building a 6.0 Comp 7.4" Hi-Tech Pushrods, Patriot Performance 8401 Spring Kit, Comp Double Roller Timing Chain, ARP Rod Bolts, ARP Head Bolts, Cam - I dont know yet, any suggestions???
    89 Chevy Cheyenne - 10/24/09 Time of death declaired at 8:16pm.

  9. #49
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    Whatever. My feelings were hurt real bad by that. I actually cried myself to sleep last night because of it.


    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  10. #50
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    Quote Originally Posted by Sargen View Post
    I didnt indend to sound angry, i appologize. No hurt feelings. And they really wernt that expensive, summit has some amazing deals.
    What did you end up paying?
    2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s

    2004 Buell XB12s

    Quote Originally Posted by LamboDoNoMo View Post
    "Never give up, NEVER BACK DOWN!!!"

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