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Big block ports

Discussion in 'Chevy Trucks' started by BigBlock454, Apr 27, 2002.

  1. BigBlock454

    BigBlock454 Junior Member
    from Jersey
    Messages: 12

    I just recently got my hands on a 454 truck motor that has the peanut ports. I have a edelbrock performer RPM manifold that is for oval ports. My question is the ports on the manifold obviously are bigger than the ports on the heads. Will there be a problem with this even though they are both oval..
     
  2. Power mad

    Power mad Member
    from Oregon
    Messages: 75

    It sounds like the engine is basicly stock.
    the intake will work but the RPM intake is better suited for an engine that has a better cam and heads.
    The engine will prolly run better if you leave it as is untill you can get a set of better heads. The Peanut port heads are not a high flowing head, and putting the RPM on it will be a high flowing intake on a low flowing head.
    The regular Performer would be a better choice for that application.
    Port matching the head and intake will help out a little, just don't go crazy with the die grinder.
     
  3. BigBlock454

    BigBlock454 Junior Member
    from Jersey
    Messages: 12

    I agree with you on that. I will port match the heads to the intake just enough. New heads will be the next thing down the road. I am using competition cam with a .510/.510 lift and 270 Adv. duration in it. Should be alright for now..Thanks for the reply..