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What would this bore and stroke equal out to?

Discussion in 'The Garage' started by y5mgisi, Oct 1, 2006.

  1. y5mgisi

    y5mgisi 1 ton status

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    it seams to be 4"bore and 3.525 stroke. So what should that work out to be? i know its a small block chevy and by the casting numbers its iether a 302, 327, or 350. according to mortech. so what do you think.
     
  2. beater_k20

    beater_k20 Banned

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    offset ground crank? maybe a custom stroker?

    comes out to 355ci.
     
  3. y5mgisi

    y5mgisi 1 ton status

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    probly a bored 350 then because the pistons say .020 on them
     
  4. sandawgk5

    sandawgk5 3/4 ton status

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    350 has a 3.48" stroke and 4" bore so it is a stroked something maybe a 327 that has been punched .020 over.

    Ira
     
  5. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Where did you come up with the 3.525 stroke number? If that is indeed the stroke and it is a 4" bore with an .020" overbore then that comes out to a 358ci.
     
  6. y5mgisi

    y5mgisi 1 ton status

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    actually i just got one of the pistons all the way down in the cylinder and measured the distence from the top of the piston to the deck. so mabey not exactly 3.525
     
  7. beater_k20

    beater_k20 Banned

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    factor in the general 9.030" deck height (leaving the piston .030" below the deck at TDC) and an aftermarket piston, $100 says you've just got a regular 350 with a 3.48" stroke, and a piston that's .045" in the hole.
     
  8. divorced

    divorced 3/4 ton status

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    Put the piston at the bottom and measure, then move it to the top and measure. The difference is the stroke.
     
  9. ntsqd

    ntsqd 1/2 ton status

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    If it is a 3.525" stroke I'm thinking it's a 360ci Circle Track Rule engine.
     
  10. beater_k20

    beater_k20 Banned

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    judging by his measurement method, i'm betting its just a run of the mill 350. if it is infact a 3.525" stroke and a zero deck, i bet you're dead nut s.
     
  11. y5mgisi

    y5mgisi 1 ton status

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    ya im also thinking/ hoping its just a plain old 350.
     

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