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Technical 327 heads on a 350

Discussion in 'The Hokey Ass Message Board' started by carl.p, Feb 1, 2016.

  1. carl.p
    Joined: Jan 12, 2009
    Posts: 74

    carl.p
    Member
    from grimsby uk

    can anyone tell me if i can use chevy 327 fuelie heads on a 350 block thanks in advance carl
     
  2. yes
     
    carl.p likes this.
  3. You may need to watch for the accessory bolt holes in the front of the heads. The fuelie heads don't typically have any.
     
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  4. DDDenny
    Joined: Feb 6, 2015
    Posts: 16,315

    DDDenny
    Member
    from oregon

    From a purely traditional point of view; this would be the best reason to use them.
    On the 67 and 68 350's, the camel hump heads were standard, the true "fueler" heads were not used after the 65 Corvette, but the same castings were used on the 66 and 67 L79/327 and 67 and 68 Z28 302's.
     
    Last edited: Feb 1, 2016
    carl.p and LOU WELLS like this.

  5. carl.p
    Joined: Jan 12, 2009
    Posts: 74

    carl.p
    Member
    from grimsby uk

    thats great thanks guys :)
     
  6. aaggie
    Joined: Nov 21, 2009
    Posts: 2,531

    aaggie
    Member

    They will physically bolt on since they use the same gaskets and manifolds but the older heads don't have hardened valve seats for the newer unleaded fuels. That can be done when the machine shop rebuilds the heads but it can get more expensive than using the later heads. Just something to consider.
     
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  7. grifcarnut
    Joined: Jan 10, 2007
    Posts: 64

    grifcarnut
    Member
    from Tucson Az

    I have done this many timesand as an added benefit the 327 heads run cooler. 350s are designed to run at 220 degrees for emissions but the 327s run at 180. The difference is in the water passages.
     
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  8. krylon32
    Joined: Jan 29, 2006
    Posts: 8,082

    krylon32
    Alliance Vendor
    from Nebraska

    Just had an engine built doing that. I had camel hump heads reworked (new hard seats and 3 angle valve job, and fit to a 350 block. Runs really good on the test stand. I didn't want the accessory holes in the heads as I am building a sorta early style truck.
     
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  9. DDDenny
    Joined: Feb 6, 2015
    Posts: 16,315

    DDDenny
    Member
    from oregon

    In my previous post I failed to mention that the 327 was still available for the 1969 model year, they were a pretty low hp engine but they did use the same basic heads (accessory bolt hole style) as the low hp 350's in 69.

     
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