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Thread: Small block heads

  1. #1
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    Small block heads

    After reading a bit on this site, I understand that the 340 heads will interchange on a 300 engine. Are the 340 heads ports/valve sizes any better than the 300 heads. I suspect that they are identical, but.....

  2. #2
    they are the same, with the same castings and valve sizes.

    you can install larger valves.

    if really desperate for power AND willing to spend money, get the crank from a Bu 340/350 and do the Hot Rod build:
    http://www.hotrod.com/how-to/engine/...od-any-engine/

    if you want to do it cheap and easy, just get a Buick 350. maybe slap a turbo on it.
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