Bolts or Studs?

Discussion in 'Engine Topic' started by earnhardtgm3, Feb 6, 2011.

  1. earnhardtgm3

    earnhardtgm3 Veteran Member

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    Which is better to use on aluminum heads-Head bolts or Studs.I currently have a set of ARP head bolts and am wondering if I should go with Studs instead.
     
  2. justanother71

    justanother71 Veteran Member

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    unless you have high compression, or are running a big turbo or supercharger, good head bolts are JUST FINE. and much easier.
     
  3. hhott71

    hhott71 R.I.P 11/19/18 Lifetime Gold Member

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    NOS?
    Blower?
    13: 1 compression?

    If not,,,, the stock GM or ARP bolts are just fine, but you must use hardened washers on aluminum heads, they come with the ARP bolts.
     
  4. 5spd540

    5spd540 Veteran Member Lifetime Gold Member

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    ARP bolts will be fine unless you have a high compresssion motor
     
  5. earnhardtgm3

    earnhardtgm3 Veteran Member

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    10:1 is what I have on a mild 350
     
  6. 5spd540

    5spd540 Veteran Member Lifetime Gold Member

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    You will be good with bolts and you can save a little money
     
  7. Marks71BB

    Marks71BB Veteran Member Lifetime Gold Member

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    ^^ THE most important part right there. And light oil on the threads and surface of the washers.
    I should not have to mention clean but I will.
     
  8. z28rod

    z28rod Veteran Member

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    arp bolts or new gm bolts are fine unleess running race comp. like 13-1 or up or running blower or turbo.....i guess gm bolts are no go from posts below....... me learn something, ive seen guys do it but that dosnt mean its correct.....
     
    Last edited: Feb 6, 2011
  9. SKIP WHITE

    SKIP WHITE Member

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    You for sure need to use the special head bolt washers, but you must have the extended reach head bolts. The stock GM head bolts will not have sufficiant thread to secure the heads if you add the washers, but alum. heads need these washers. GM head bolts have exactly enough thread length, and none to spare for the use of these thick washers. These special washers are approx. 95-125 thick. Use head studs, and worry not about it.
     
  10. Marks71BB

    Marks71BB Veteran Member Lifetime Gold Member

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    Yeah, If I was to drop the coin on aluminum heads then the studs would be a given. That's just me though.
     

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