Distributor Cap

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HT4100 4.1, 4.5, 4.9 Discussion, Distributor Cap in Cadillac Engine Discussion; Hi I need a new cap. Is the cap on my '91 4.9 a HEI? At the parts store there ...
  1. #1
    CaddyDaddy97 is offline Cadillac Owners Member
    Join Date
    Jan 2004

    Distributor Cap

    Hi I need a new cap. Is the cap on my '91 4.9 a HEI? At the parts store there is this Accel performance cap. I was wondering if all HEI caps are interchange able. Thanks.

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  3. #2
    carnut is offline Cadillac Owners Master
    Automobile(s): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
    Join Date
    Feb 2003

    Re: Distributor Cap

    I have the Accel cap on my '88. Reading the box, it will tell you application. All these systems are HEI but coil mounting changes. Some on top of the cap, some remotely mounted. I dont notice any performance gain, its simply made better and should last longer.

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