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Ls3 from 08 Corvette will not turn even by hand

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Old 06-11-2015, 09:37 AM
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Default Ls3 from 08 Corvette will not turn even by hand

Hello first time posting so i apologize if someone already asked, I picked up ls3 a year ago had to pull motor myself turned crank by hand prior to pull. Got it home changed flywheel from standard corvette to auto flywheel( used same bolts) running 08 4l60e had to hold fly wheel with vise grips to stop it from turning. Bought holley oil pan/pick up tube. they suggested ls3 oil indicator and tube, and ls1 windage tray i went to dealer bought both. While oil pan was off i inspected crank,rods,etc no damage visible. Motor will not turn at all completely frozen any suggestions. Additional info car was a rollover still had freon/radiator fluid present
Old 06-11-2015, 02:30 PM
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its trash, lucky for you I'll buy it!
Old 06-12-2015, 03:32 PM
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Did you remove any of the rod or main caps when you had the oil pan off?
Old 06-12-2015, 03:34 PM
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Also, Take the flywheel bolts back out and throw in garbage and buy new stock or ARP aftermarket. They are TTY, at least I think they are, which means one use only. It's only a couple of bucks, why chance it.
Old 06-15-2015, 06:50 AM
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Rollover = oil in the cyls.* Have you pulled the plugs and tried to turn?
Flywheel bolts too long?
Manual wheel to flex use the same length?
Saw this happen. Was going to buy a running engine out of a rollover. JY dude put a batt in, hit the key, 2 rods exited the block..



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