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Labor Day Putting down your wrenches or time for
MORE wrenching? 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#14491 12/19/2003 5:16 PM | Joined: May 2003 Posts: 111 Member | | Member Joined: May 2003 Posts: 111 | Does anyone know what year Chevy offered an electronic ingnition distibutor with the coil (square) not in the cap? (on 250-292) I have one, and think the vac advance isn't backing down properly, but can't get a replacement unless I can find the year. The kids at the parts store can't seem to find it on their computers..... :mad: God, I miss old- fashioned books!
35 + years of rollin' steel!
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#14492 12/19/2003 8:48 PM | Joined: Aug 2003 Posts: 264 Member | | Member Joined: Aug 2003 Posts: 264 | I think GM introduced the HEI system in 1975 (delcotronix before that?). I think the earliest HEI's had separate coils but not sure exactly when they switched over to the built-in coil. | | |
#14493 12/20/2003 1:45 AM | Joined: Jul 2003 Posts: 55 Member | | Member Joined: Jul 2003 Posts: 55 | From my book it says that 1975-1976 were the only years WITH a separate coil. From the Inline Six Power Manual. Hope this helps. John
1968 Chevy C-10, 250 and 3 speed on floor, Hedman headers, Offy intake, Edelbrock 600cfm 4 barrel, HEI
1966 Chevy C-10, motor and tranny went into the '68. Waiting to be restored.
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#14494 12/20/2003 4:53 AM | Joined: May 2003 Posts: 111 Member | | Member Joined: May 2003 Posts: 111 | That should do it. I thought it was 75-76 but I was going from memory. Now I just have to teach the kids at the parts store how to use their computer..... 
35 + years of rollin' steel!
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