LT1-LT4 Modifications 1993-97 Gen II Small Block V8

How long can an engine sit untouched?

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Old Oct 22, 2008 | 07:40 PM
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Default How long can an engine sit untouched?

I am going to check out a LT1 engine to replace the one I fried in my 97SS. The engine has been in storage for 4 years. It has 45k miles and it ran strong before stored. Should it still be in running condition after it has been sitting untouched for so long? Thanks for your help.
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Old Oct 22, 2008 | 07:44 PM
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what conditions was it stored in? I bought a longblock from a friend and it sat in his garage for 9 months. Uncovered and not in any kind of way stored. Everything still had oil on it except the lifter valley.
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Old Oct 22, 2008 | 07:44 PM
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It SHOULD be ok. I would turn it over by hand first. I'm not sure how to prime it on an LT1 w/ the intake on, but if it MUST come off to do it, I think you should.
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Old Oct 22, 2008 | 07:51 PM
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+1 or at least remove the plugs and put some oil down into the cylinders and crank it over by hand.
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Old Oct 22, 2008 | 07:58 PM
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Originally Posted by buffman
+1 or at least remove the plugs and put some oil down into the cylinders and crank it over by hand.
YUP---
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Old Oct 22, 2008 | 07:59 PM
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Originally Posted by NHRAMAN
YUP---
Thanks fellas, I'll be sure to do that. Any other ideas?
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Old Oct 22, 2008 | 08:01 PM
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yea it should be fine.........
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Old Oct 22, 2008 | 08:01 PM
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make sure there aren't any mice by chance in the intake
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Old Oct 22, 2008 | 10:47 PM
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i would do as stated and shoot some oil down the cylinders. put new fuel in for sure. i would probably remove the belt and try spinning all accessories by hand to make sure nothing has seized up on you, then turn it by hand and if all checks out, you should be in the clear.
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Old Oct 22, 2008 | 11:21 PM
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a few years back I had a boat that the motor was junk so I found one that was sitting for little more then a year so I installed it and long story short it spun a rod bearing. I should have inspected better and thrown in a new oil pump. but back then I just wanted to get it runing so I can sell it.
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Old Oct 22, 2008 | 11:58 PM
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If it seems to be seized up, go buy some Marvel's Mystery Oil (or trans fluid if you're cheap lol) and put a liberal amount in each cylinder. And my own long story short: Buddy had a high mileage 305 from a Blazer that was locked up from sitting, did just that, waited a day or so and it broke loose

And yes, inspect it for mice or traces of mice being around. Things chewed up, wires, hoses, you'll want replaced!
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Old Oct 23, 2008 | 12:17 AM
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if you dont use it, you loose it...

wait does that count with engines?
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Old Oct 24, 2008 | 02:00 AM
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Ok, I talked to the seller again and he says that he has put wd40 and oil in the cylinders atleast once a year and that the engine was sealed in a plastic bag. Things aren't as bad as I thought. I'm still going to check it out thoroughly.
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Old Oct 24, 2008 | 05:03 PM
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You should be good then!
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Old Oct 25, 2008 | 01:34 PM
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My engine sat for 5 years in a garage before I did my swap. The only problem I had were the injectors. They varnished up. I made a jig and cleaned them, put them in and it started right up. That was 8 years ago.
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