Distributor decoding

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Old Mar 27, 2026 | 10:39 AM
  #1  
TOM1972's Avatar
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From: NJ
Distributor decoding

Hello All - so I bought a HEI distributor from Scott Winn and from what I'm reading was it made in 1977(please correct me if i'm wrong). Can someone tell me what make of car I can reference when I look for replacement parts in any auto stores? Thanks



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Old Mar 28, 2026 | 10:24 AM
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1103259 is from a 1977 Olds 350, used in many different GM cars across divisions. 7D13 is 1977 (7), April (D) 13th. Any parts you need will be common to nearly all Olds HEI distributors that do not use the computer command control system, which is pretty much any 1975-1980 Olds V8 model. Cap, rotor, and four pin module are common across all non-computer HEI distributors. Pickup coil and ignition coil are specific to Olds distributors.
Old Yesterday | 07:09 AM
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TOM1972's Avatar
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Appreciate the information, thanks Joe
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