Max stroke 10.200 block?

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by rb0804, Jan 25, 2017.

  1. rb0804

    rb0804 Member

    Joined:
    Aug 7, 2010
    Messages:
    487
    Likes Received:
    19
    I have an old cast Hemi KB block with standard cam location and standard cam bore, does anyone know off hand the maximum amount of stroke the block will take? Thanks in advance.
     
    #1
  2. AJ FED

    AJ FED New Member

    Joined:
    Dec 22, 2016
    Messages:
    6
    Likes Received:
    0
    Hi rb.....I have an old hemi cast KB block and if memory serves it has a deck height of 10.700. The KB crank is +5/8" making stroke 4.375". Hope this is some help. Cheers.
     
    #2
  3. OwnBlock

    OwnBlock Member

    Joined:
    Jun 12, 2006
    Messages:
    222
    Likes Received:
    2
    10.200 takeaway piston compression height, takeaway rod length, less 1/2 of stroke. have a play with this formula. depending on crank counterweight diameter will determine rod length for piston clearance to crank as it swings around.
     
    #3
  4. DCobeen

    DCobeen Member

    Joined:
    Sep 17, 2006
    Messages:
    41
    Likes Received:
    0
    Aloha rb , So you have a -.500 short deck KB if the deck height is 10.200. Same as mine. I don't know what the max stroke would be, but I have a + .100 in my deal, crank is 3.850.
     
    #4
  5. td3829mk

    td3829mk Member

    Joined:
    Dec 31, 2015
    Messages:
    123
    Likes Received:
    8
    both of my .500 short deck hemi's have had 3.750 stroke. both std/std as well.
     
    #5
  6. rb0804

    rb0804 Member

    Joined:
    Aug 7, 2010
    Messages:
    487
    Likes Received:
    19
    I know a 4.250 stroke will fit, was wondering if a 4.500 stroke would fit. Not really concerned with rod length or compression height, more concerned about the rods hitting the camshaft or the pan rail. Thanks for the input thus far.
     
    #6
  7. h2b puller

    h2b puller Member

    Joined:
    Feb 8, 2008
    Messages:
    63
    Likes Received:
    1
    4.250 will work 4.500 with aluminum rods need to machine the rods for making clearance with the camshaft
     
    #7
  8. HootersFunnyCar

    Joined:
    Nov 27, 2003
    Messages:
    217
    Likes Received:
    7

Share This Page