Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

My '72 sbc 350 block the same as new ones?

Discussion in 'The Garage' started by roostr3269, Mar 28, 2002.

  1. roostr3269

    roostr3269 1/2 ton status

    Joined:
    Jul 2, 2001
    Posts:
    305
    Likes Received:
    0
    Location:
    michigan
    My \'72 sbc 350 block the same as new ones?

    I have the original 350 out of my Jimmy that i replaced w/ the 502. My friend wants to buy it, if the block is the same as the new ones, so he can swap new parts on the old style block. Anyone know? thanx.
     
  2. Burt4x4

    Burt4x4 3/4 ton status

    Joined:
    Feb 17, 2000
    Posts:
    6,854
    Likes Received:
    0
    Location:
    California (Modesto area)
    Re: My \'72 sbc 350 block the same as new ones?

    "New Ones"??
    No, they are different. You have two piece seal type and one piece seal,crank seal.
    There are other differences too but I don't know very much about blocks yet, still learning. But I do know that GM switched from a two piece crank seal to a one piece, I think it was early to mid 80s but I could be wrong.......
     
  3. fortcollinsram

    fortcollinsram 1/2 ton status

    Joined:
    Nov 8, 2001
    Posts:
    2,261
    Likes Received:
    0
    Location:
    Fort Collins, CO
    Re: My \'72 sbc 350 block the same as new ones?

    I think 1986 ws the year that GM adopted the 1-piece rear main...

    Chris
     
  4. Burt4x4

    Burt4x4 3/4 ton status

    Joined:
    Feb 17, 2000
    Posts:
    6,854
    Likes Received:
    0
    Location:
    California (Modesto area)
    Re: My \'72 sbc 350 block the same as new ones?

    That sounds about right cuz GM whent to FI about that time too, didn't they?
     
  5. txbluethunder

    txbluethunder 1/2 ton status

    Joined:
    Jan 29, 2002
    Posts:
    835
    Likes Received:
    0
    Location:
    Austin, TX
    Re: My \'72 sbc 350 block the same as new ones?

    86 was the first year for the 1-piece...87 was the first year for fi
     
  6. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    Re: My \'72 sbc 350 block the same as new ones?

    Also pre 80 blocks have the oil dip stick on the driver side and 80 on up it is the passenger side. 86 they went to the 1 piece rear main.
     
  7. roostr3269

    roostr3269 1/2 ton status

    Joined:
    Jul 2, 2001
    Posts:
    305
    Likes Received:
    0
    Location:
    michigan
    Re: My \'72 sbc 350 block the same as new ones?

    Cool, thanx for the info, I will let him know.
     
  8. zakk

    zakk 1/2 ton status

    Joined:
    Sep 21, 2001
    Posts:
    4,762
    Likes Received:
    0
    Location:
    San Jose CA
    Re: My \'72 sbc 350 block the same as new ones?

    the "new" eninges also have the vortec heads that ahve different mainifold bolts, different valve cover bolts and (i think) use differnet headers.

    All this in additon to the differnt dipstick and 1 piece rear main.
     
  9. Re: My \'72 sbc 350 block the same as new ones?

    Although I have no idea when GM moved the motor mounts. They mounted either in front then moved to the middle or the middle then moved to the front. Not sure when though. Hope this helps. Later
     
  10. chevyboy24598

    chevyboy24598 1/2 ton status

    Joined:
    Jul 17, 2001
    Posts:
    212
    Likes Received:
    0
    Location:
    Va, USA
    Re: My \'72 sbc 350 block the same as new ones?

    The new blocks don't have a hole for a mechanical fuel pump. If you need some pics, I've got a 98 Vortec going in my 65 Chevy C10.
     

Share This Page