Which 350 block should I look for?

Discussion in 'Engine Topic' started by BeefTip, Dec 11, 2010.

  1. BeefTip

    BeefTip Veteran Member

    722
    0
    Aug 11, 2007
    Phenix City, AL

    eww...what do you have to do to make them support a bigger spring?
     
  2. ZS10

    ZS10 Moderator Staff Member Lifetime Gold Member

    12,165
    2
    Jan 18, 2003
    BC, Canada
    If you look at the top there's a sticky that will tell you anything you want to know about Vortec heads, and engines they came on.
     
  3. hhott71

    hhott71 Veteran Member Lifetime Gold Member

    14,375
    6
    Mar 30, 2001
    Joplin Mo. 64801
    A 3/4 ton or bigger truck will have 4 bolt mains.

    But yes ANY 96 and newer Vortec 5.7L is a good purchase.
     
  4. z28rod

    z28rod Veteran Member

    4,473
    0
    Apr 30, 2009
    hopewell junction,ny
    oem roller, 4 bolt, like the mod said read the sticky at top of the engine topic page.
     
    Last edited: Dec 12, 2010
  5. AJ_72

    AJ_72 Veteran Member

    5,122
    0
    Jul 3, 2003
    Chebanse, IL USA
    I lucked out and got a 350 block out of a '90 Heavy 3/4 ton. Roller cam provisions, hole for the fuel pump rod, and 4 bolt main caps.

    Yeah BABY!! ;)

    Casting number
    14093638...350...87-95...2 or 4...Roller or flat tappet cam, one-piece rear seal

    This block was also used a lot in the "F" and "Y" bodies. There's a rumor going around that Corvettes got 4 bolt mains. I don't know if that's true or not, but I wouldn't count on it. The 4 bolts were mainly used in heavy duty applications.
     
  6. BeefTip

    BeefTip Veteran Member

    722
    0
    Aug 11, 2007
    Phenix City, AL
    thanks guys, i just saw the sticky up top!
     
  7. MyBoTy

    MyBoTy Veteran Member

    1,566
    9
    Feb 9, 2002
    Lubbock, Texas USA
    One other thing to check - some came with a mechanical fuel pump boss, some didn't. Even those that had it weren't all drilled, double check that - IF you're going to be running a mechanical fuel pump.
     
  8. BeefTip

    BeefTip Veteran Member

    722
    0
    Aug 11, 2007
    Phenix City, AL

    good tip! However, at this time I would probably just use my electric fuel pump thats already setup on the car.
     
  9. z28rod

    z28rod Veteran Member

    4,473
    0
    Apr 30, 2009
    hopewell junction,ny
    I never knew this, thought it was only on the bbc engines.
     

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