LT1 Impala Engine - JeepForum.com
 
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post #1 of 10 Old 02-23-2017, 06:59 AM Thread Starter
Van857
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LT1 Impala Engine

Hi guys, just a quick question for someone who's new to swaps. So I'm looking to put a V8 in my YJ, I have help so mechanics shouldn't be a problem but I'm curious if I have a good deal on my hands.

The Engine: 99' Impala SS LT1 engine, APPARENTLY 80,000 miles

What it comes with: Wiring Harness ("modified for older truck project"), Computer, some other accessories, LT1 Aluminum Heads, K&N Cold Air for a firebird/camero (wouldn't that still fit on the Jeep? Just curious.)

Price: Negotiable $600, comes with everything^

Was in a wreck, seller says there is nothing wrong with it, what would y'all check before buying?

Thanks everyone!


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post #2 of 10 Old 02-24-2017, 04:30 PM Thread Starter
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Anyone?


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post #3 of 10 Old 02-24-2017, 07:26 PM
daddyusmaximus
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I don't know what price range it would be in, but I'd want to see it run.

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Their dogs.
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post #4 of 10 Old 02-24-2017, 07:29 PM Thread Starter
Van857
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Yeah I was planning on checking it out and taking the plugs out and turning it just to make sure it's not seized, but I won't know if there's a crack in the block unless I had it twisted. Always the risk. Thanks for the feedback though


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post #5 of 10 Old 02-24-2017, 09:24 PM
222Doc
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friends yj has a Lt1. runs well. You could do a leak down test on it. That would let you know if it can hold pressure. even tell you if it leaks were from. give you an idea how each cylinder is over all.

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post #6 of 10 Old 02-25-2017, 07:57 AM Thread Starter
Van857
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Quote:
Originally Posted by 222Doc View Post
friends yj has a Lt1. runs well. You could do a leak down test on it. That would let you know if it can hold pressure. even tell you if it leaks were from. give you an idea how each cylinder is over all.


Is there a post somewhere on how to do that, or is it general for most cars so I could probably just YouTube it?


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post #7 of 10 Old 02-25-2017, 09:59 AM Thread Starter
Van857
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Also any info on an adaptor for AX15 trans would be helpful, seems $300 is a little expensive from advanced adaptors but may just be my wallet talking. Thank ya


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post #8 of 10 Old 03-02-2017, 03:59 PM Thread Starter
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post #9 of 10 Old 03-02-2017, 11:09 PM
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Yes you can you tube just about anything today. You will need the leak down test kit, an air supply. Might be able to rent the kit at most large parts stores. if you bring the set back in most cases two days it's free. Just check the stores policy. Its not much more complicated than a compression test and you don't have to run the engine. So in this case a none runner. You will know how well say the valves seal, even what ones. how well the the rings seal. basically you fill a cylinder with air when its in a compression stroke. If say the air leaks out you just have to hear from where. say it a exhaust valve air would be heard coming out the the exhaust port. Intake the carb. from the pan if it has bad rings. many times this is better than just a simple compression.

there are tons of info on how do run the test.

i would pull the pan too, plastic gauge all the rods mains. better to know than just go/buy. I would prime that oil system as well before firing it up/turning it over, its been dry a long time. a little wd down each plug whole. about 5+ seconds of spray then hand turn.

best of luck should be a runner with that engine if it all checks out.

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post #10 of 10 Old 03-05-2017, 10:47 PM
Tru2Chevy
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The LT1 powered Impala SS was only available from 94-96, rated at 260hp with the factory iron heads. The aluminum head version from the F-Body was rated at 275hp. Decent engines, although the Optispark ignition is not ideal, especially in a Jeep used off-road where it may get wet.

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