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490 big block????

Discussion in 'The Garage' started by foolhardy, Jul 2, 2005.

  1. foolhardy

    foolhardy Registered Member

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    have any of you ever herd of a 490 BBC
     
  2. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    heard of a 496 BBC, but its not a factory configuration.
     
  3. Mad-Dog

    Mad-Dog 1/2 ton status

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    490 cubes would represent a stroked 454 that had not been bored +.030" which adds another 6 cubic inches to the displacement of that combo.
     
  4. 84K5BD

    84K5BD 1/2 ton status

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    your wrong, it's available in 2001 and up 2500HD trucks :D
     
  5. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    496's are the new replacements for the Merc 502's in the marine industry.. i've only run across one pair so far....
     
  6. foolhardy

    foolhardy Registered Member

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    this guy is offering me a 490 BBC for 200 bucks but it needs a carb
     
  7. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    thats a rediculous price for any BB... i would think it needs more than a carb... i'd jump on it...
     
  8. Z3PR

    Z3PR Banned

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    Jump on that deal. Any rebuildable BBC is well worth $200.00 in my honest opinion. :deal:
     
  9. foolhardy

    foolhardy Registered Member

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    it is my friends grandpa it has been rebulit and stroked
     
  10. Mad-Dog

    Mad-Dog 1/2 ton status

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    Ok, a +.030 4.250" bore created a 4.280" finished bore diameter combined with a 4.250" stroke makes 489.1 cid

    bore x bore x stroke x .7854 x # of cylinders = (8) = 489.1

    I reckon it's a 490 Rat...buy it !
     
  11. sled_dog

    sled_dog 1 ton status

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    if it is a rebuilt stroker motor, BUY IT. I'd be weary if he claims its not a stroker motor. People who don't know what they have are great when YOU know what they have, but when neither really knows, it can spell disaster.
     

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