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Click on image for the lowdown. 
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| | | Forums66 Topics128,014 Posts1,055,324 Members48,419 | | Most Online14,466
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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jul 2000 Posts: 2,187 Insomniac | | Insomniac Joined: Jul 2000 Posts: 2,187 | No relay. 12ga wire. Where is all this crazy stuff coming from? It's just an HEI. There is no stress on the ignition switch and no need for big wire. Are you guys confusing an HEI with a new starter?  You are correct. A pink 12 ga wire is shown on the wiring diagram I have. I acquired the official wiring diagram from GM when I bought my 1980 C20.
Gord 🇨🇦
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1954 1/2 ton 235 4 speed
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