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Click on image for the lowdown. 
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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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| | | | Joined: Jun 2010 Posts: 188 Shop Shark | | Shop Shark Joined: Jun 2010 Posts: 188 | I think the integral head came out around 1975. It was a 250. Your HEI could have a small cap and an external coil too. Not sure what year they went to the coil in the cap. The stock 250 head will replace the integral one. You just need an intake. I have one if you want to go that way. I'm 60 miles south of you. | | |
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