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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: Aug 2001 Posts: 1,300 'Bolter | | 'Bolter Joined: Aug 2001 Posts: 1,300 | The crank gear turns twice for every revolution of the cam. When you assemble the engine, the marks will go together. The drawing you are looking at is on the top dead center firing point I believe. Both will line up the same but I think that it is easier to spot that the marks are in the correct position when they are right together. | | |
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