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torque on aluminum manifold?

Discussion in 'The Garage' started by lazerus, Feb 28, 2003.

  1. lazerus

    lazerus Registered Member

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    north texas
    howdy fellows,
    do you torque aluminum intake manifolds the same amount as cast iron? we are talkin chevy small block with edelbrock performer.
    thanks!
     
  2. Sandman

    Sandman 3/4 ton status Author

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    I do with no problems. Around 35 foot pounds or so. /forums/images/graemlins/grin.gif
     
  3. ben427

    ben427 1/2 ton status

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    im pretty sure edelbrocks spec is only 15 lbs or so, its not very much at all.
     
  4. NITRO

    NITRO 1/2 ton status

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    do them till they r tight and then about another 1/2-3/4 of a turn. and ALWAYS start in the middle and work your way out on an aluminum intake. goo luck

    NITRO
     
  5. arq

    arq 1/2 ton status

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    i would go no more than 25, it;s not like your holding down the pistons or something. it just lets in air. as long as it seats and seals correct you should be ok. i used 14-lbs on the vortec and they only use 8 bolts, none on the center of the manifold. that was over 2yrs ago.

    ARQ.
     

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