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Old 12-22-2019, 11:03 AM
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Parting out 4.6is engine and transmission to replace with LY6 Engine

Well the day has finally come and I'm looking forward to making this dream a reality. Last winter my crank case vent hose froze which pressured up my engine and blew all of the oil out of my engine. As soon as my oil light went on, I shut the engine off and pulled over FAST!! I had my X5 flat decked back to my house and the diagnosis started. At first one it looked like my one bank wasn't firing so I bought the expensive engine timing kit and made made sure my engine was still in time while re-tightening my cam position sensor. With both banks firing again, I thought I had my problems fixed but while it was still running in my garage something sounded off so I unbolted the oil pan and upper oil pan to have a look at the main bearings and found the bearing closest to the fire wall was cooked so I'm parting out the engine and transmission and installing an LY6 6.0L Chevy engine and transmission. It'll be a project and a half but I have some good friends that will help with the build. I'll post pics and updates along the way.


1. I replaced the transmission about 20,000kms ago with one straight from ZF in New York. No issues with the new tranny at all.


2. I had gotten the timing chain and guides done also right around that time so that's all quite new also.



3. I had the alternator rebuilt by my good friend at Treasure Electric in Calgary with all new mil-spec parts. He did an awesome job and ran perfect around the same time also.
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Last edited by GOFAST GUY; 12-22-2019 at 12:02 PM.
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Old 12-28-2019, 12:18 PM
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Part of the tear down...


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Old 01-06-2020, 06:24 PM
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Great project; so your plan is to install the 6.0 V8 and automatic transmission?
Diff ratio remain the same?
Any other changes?
Thank you for sharing; I only noticed your post from the other LSX swap
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Old 01-06-2020, 10:10 PM
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Damn, you are in Calgary too .. would be amazing to see this beast in real life one day, if you don't mind onlookers.
Good luck with this project and the sale/part out of 4.6 and tranny. So you bought a ZF from the factory? Is it for sale?

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Old 01-08-2020, 01:37 PM
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Yes, I ordered the tranny from ZF in New York and drove down to the border and picked it up while sending my old one back in the shipping crate. I only put 20,000kms on it since installing it so it's still new.
As for this build, I've always wanted to do this to my X5 and although my timeline was sped up a little it's heading in the right direction. For starters, we're going to get the engine installed and running. Once we're happy with how everything works, we can easily start upgrading the performance while documenting the changes and performance figures.
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Old 01-08-2020, 01:41 PM
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Quote:
Originally Posted by deepblonde View Post
Great project; so your plan is to install the 6.0 V8 and automatic transmission?
Diff ratio remain the same?
Any other changes?
Thank you for sharing; I only noticed your post from the other LSX swap
We're sticking with the factory 4L80 because it's so robust and shifts smoothly. The factory diff will work well for now also but I like the idea of doing an M5 swap'd rear end someday if we start putting down some major up.
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