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  1. #31
    dudeiwin86's Avatar
    dudeiwin86 is offline Dude...
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    Quote Originally Posted by lxmodguy View Post
    On another note, the heads that we ship will have comp springs, retainers, and locks. They will still have manley stainless valves.
    not comp 918's i hope.

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  2. #32
    lxmodguy's Avatar
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    Actually I mis-spoke. We are going to be putting Pac 1218 on these heads
    2012 Mopar 12 Chrysler 300
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  3. #33
    dudeiwin86's Avatar
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    Quote Originally Posted by lxmodguy View Post
    Actually I mis-spoke. We are going to be putting Pac 1218 on these heads
    Solid.

    Sent from my DROIDX using Tapatalk

  4. #34
    mclarengts's Avatar
    mclarengts is offline Kenne Bell Whinning!
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    Quote Originally Posted by lxmodguy View Post
    Actually I mis-spoke. We are going to be putting Pac 1218 on these heads
    what is that, for us newbies


    2010 Charger SRT: Kenne Bell 2.8LC, SLP LM1s PB 11.88@118
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  5. #35
    lxmodguy's Avatar
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    PAC 1218's are a very respectable sub .600 lift spring. Our cars don't require .600 plus lift to make power.

  6. #36
    lummzy88's Avatar
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    Quote Originally Posted by dudeiwin86 View Post
    not comp 918's i hope.
    whats wrong with the comp 918's?

  7. #37
    mcshocks is offline Powered by GTP headmasters
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    Quote Originally Posted by lummzy88 View Post
    whats wrong with the comp 918's?

    They break, just do a quick google search.


    1/4 mile PB: 11.741 @ 115.91 mph on a 1.606 60'

  8. #38
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    Quote Originally Posted by mcshocks View Post
    They break, just do a quick google search.

    OOP's I just bought a set of used heads with these springs on them.

  9. #39
    dudeiwin86's Avatar
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    what cam are you running?
    what rev limit?

    springs are easy to change on a bench if you havent put them on yet... i would say 200$ is good insurance on your entire longblock to upgrade to PACs or PSI springs

  10. #40
    lummzy88's Avatar
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    Frank Racing stroker cam. 231/235 on a 113lsa. .580 lift. I have not installed the heads yet.

    Quote Originally Posted by dudeiwin86 View Post
    what cam are you running?
    what rev limit?

    springs are easy to change on a bench if you havent put them on yet... i would say 200$ is good insurance on your entire longblock to upgrade to PACs or PSI springs

  11. #41
    lxmodguy's Avatar
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    We got the heads on and tested and the gains were about what we expected to see. It wasn't apples to apples because we had to dyno the car elsewhere (our dyno is broke

    The car picked up 35 to the tires and about 40 foot pounds of torque. The test vehicle was 2007 charger srt8 with a 218/218 cam. Pretty small cam really and didn't maximize the potential of the heads. I am having a set done up for my car in the next week or so. I hopefully have a set out at the all texas event for folks to "fondle"

    I can probably do a set at a discount for someone if you want to be an early adopter and report back with before and after dyno sheets on the same dyno.

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