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Thread: clearance ???

  1. #1
    Junior Member
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    Black
    2000 Z28 M6

    Question clearance ???

    I was just wondering if anybody could tell me if I will have a problem clearance. A friend of had a cam but sold the car now I have the cam it has .619" / .629" lift and my heads have been cut .005" will it fit with out fly cutting? The cam is a custom cam motion cam 243/251 @ .050 .619"/.629" 110 sep. any info would help
    Last edited by Jons00z; 01-31-2007 at 05:20 PM. Reason: left out info

  2. #2
    Jesus died to save you! Killer_bluebird's Avatar
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    Navy Blue Metallic
    2000 Camaro Z28

    That is a big cam so my guess is no. But it will depend on the Lobe design, That's why and you can have an intake lift of .649" with an Comp Cam LSK lobe but not when you use the older XER lobe. Your best bet is to do the clay test. I know it is a pain but then again it will be easier than pulling a busted motor.
    Last edited by Killer_bluebird; 02-02-2007 at 06:46 PM.
    2000 NBM Camaro Z28
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  3. #3
    Senior Member Wheeler99WS6's Avatar
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    black, 05 Roush
    black, 99 T/A WS.6

    wow, that is a big cam, I agree with said before....I would think the heads would need flycutting.

  4. #4
    I would certainly check your cylinders clearance with that big of a cam.

    Better safe then sorry.

  5. #5
    member since may 2000 nhraformula's Avatar
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    2000 nhra edition formula

    only safe way to know is clay it
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  6. #6
    Senior Member mrr23's Avatar
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    2014 camaro 2ss/rs

    that's a huge cam. i don't see it clearing if you are using it in a stock shortblock.
    Cold Air Intake, Muffler Delete, Vinci High Performance Dual Valve Springs, Hardened Pushrods, Yella Terra 1.85 Rockers, Some Hydropdipped Stuff, Strut Tower Brace, Some SS Badges, boost/vacuum gauge, fuel pressure gauge, some checkered stripes, drilled/slotted rotors, ZL1addons Stealth wickerbill, Ruxifey LED side markers

  7. #7
    Veteran Hi-Po's Avatar
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    1999 TA WS.6

    Holy smokes, that is a big cam. Where do you want your power? Definately take that into consideration. Like others said, I dont beleive that cam is going to work with stock shortblock. Not olny the lift but the duration is also very high. Do the clay test an measure. General rule i beleive is .080 inch clearance for instake valve and .100 inch clearance for the exhaust valve. Good luck.

  8. #8
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    2000 Z28 M6

    cool will do the clay test but prob. gonna build a 408 and put this cam in it. As far as the power lookin for 3500 plus rpms and 456 gears will see where I end up after that.

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