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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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#28864 10/27/2003 6:36 PM | Joined: Jul 2000 Posts: 962 Shop Shark | | Shop Shark Joined: Jul 2000 Posts: 962 | crank should spin freely with no rods/pistons attached. Plastigauge the mains, I assume you should have between .001-.003" journal clearance. Could be tight rear main seal or a cocked thrust main. How did you find a 283 crank with a std journal size anyway? Rule of thumb is that if you can't spin crank with a few fingers on counterweight, its too tight.
Preaching the Hot Rod Gospel according to the 4-stroke apostles:
Suck, Squish, Fire and Fumes
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