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How Many Hours For Turn Key Engine Replacement

Old 08-10-2018, 07:25 PM
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Default How Many Hours For Turn Key Engine Replacement

I would like to here from guys that have done it or owners that have had it done.

A reliable experienced speed shop: How long should it take to pull out an engine, then replace with an identical. I would replace one LS2 for another LS2. Turnkey job.

2nd Question

How many hours does it take to rebuild an LS2? This would include machine work to bore 10 over and other associated machine work while adding new mild performance cam and valve train. Heads to be reconditioned.
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Old 08-10-2018, 08:38 PM
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Question #1, about 8.

Never have done #2

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Old 08-11-2018, 10:23 AM
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Would you figure 18 hours is reasonable for swapping a recycled (LKQ sourced) engine for the original engine?

So that is original engine out, recycled engine in and Im driving away.

Last edited by Slowridr; 08-11-2018 at 10:24 AM.
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Old 08-11-2018, 02:46 PM
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Cheaper to buy a built crate motor than to pay someone to rebuild a motor instead.
The down side, you have to go with what is on the crate motor for parts and may not be what you want for what you going to do to the motor isntead.

If your doing the work yourself, then cheap to build the motor, including using the parts you want to use as well.

As for question one, all depends on the extent, since all the motor oil coolers and motor oil cooler lines need to be replaced since they will have metal in them from the blown motor that can not be flushed out complete, and will bank that I would be pulling the torque tube apart to rebuild as well. Also, since the front cradle is dropped (prefer to drop the entire drive line and motor out the bottom so I can go through all the parts on the drive line off the car to replace worn parts as well), then the car will need a alignment as well. Hell, with the drive line out, and easy access to the fuel tanks, will take the time to replace not only the fuel pump in the drivers tank, but the fuel level sensors in both tanks too.

You don't list the mileage on the car, but if high enough, would be going through the suspension parts to replace worn parts there too (hence the reason to just drop the drive line and motor out the bottom, since makes working on the drive line and motor that much easier than in the car isntead).

Last edited by Dano523; 08-11-2018 at 02:48 PM.
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Old 08-11-2018, 04:24 PM
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I probably shouldn't mention it, but an average mileage (50-70K mile) 2006/7 LS2 should go for about $2500 today. A brand new LS3 is under $6500 and a straight swap is 10 hrs at a GM dealer ($130/hr).
You probably should be able to get a used engine ($2500) swapped for about $1000 and the extras included for around $4K out the door.
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