Head question | FerrariChat

Head question

Discussion in '308/328' started by GrayTA, Dec 8, 2009.

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  1. GrayTA

    GrayTA F1 World Champ
    Owner Rossa Subscribed

    Jun 25, 2006
    15,130
    Deep South
    Full Name:
    PDG
    Ok, so I was perusing ebay and found this:

    http://cgi.ebay.com/ebaymotors/FERRARI-308-GTB-QUATTROVALVOLE-Gr-B-cylinder-heads-set_W0QQcmdZViewItemQQhashZitem3350605c1dQQitemZ220391824413QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories


    Which advertises itself to be Group B heads. What would likely be the difference? Porting/polishing?? What sort of HP gain would you expect? I know a few people on here are making 308 racers including Group IV/B cars.

    Just being curious...


    For the record - I have NO association with the sale of this item.


    PDG
     
  2. Ferraripilot

    Ferraripilot F1 World Champ
    Owner Project Master

    May 10, 2006
    17,850
    Atlanta
    Full Name:
    John!
    Impossible to discern what that seller is talking about without details regarding what was done to the heads or flow numbers supporting their modifications
     

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