Running on the edge?

Discussion in 'PSI Superchargers Tech Questions' started by Senior moments, Sep 21, 2015.

  1. Senior moments

    Senior moments Member

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    Running @ 355 10-71 blown sbc in a RED. 10:3 static compression runs 6:80's with 27 psi boost on alky. Block is GM high nickel O-ringed with centre steel splayed mains, King forged crank and ARP's all around. 3.49 stroke & 4.030 bore. Not worried about crank & rods. How close to edge of destruction am I with this block?..plugs are happy and no bearing pounding. Shifting and clearing traps @ 7900 rpm. Should I change to a Motown or Little M?
    Thanks ITA
     
    #1
    Senior moments, Sep 21, 2015
  2. turbo69camaro

    turbo69camaro Member

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    We ran about the same combo was a GM 010 stock 4 bolt block with summer bros steel caps on 2/3/4 lol even had a GM steel crank and TRW blower pistons ran 25 psi shifted @8500 ran hi 7's in a 2900 lb door car block was 100% filled
     
    #2
    turbo69camaro, Sep 21, 2015
  3. swsc4133

    swsc4133 Member

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    Caps

    How much are the main caps moving around on the block? Ours you could see them moving around just a little with a stock block and stock caps. If so, time to change blocks.
     
    #3
    swsc4133, Sep 22, 2015

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