2008 LS3 topside removal?





I pretty much have all the accessories removed and ready to go except for two problems.
1. How do you remove the A/C block/lines from the side of the compressor? If you've done this, you know the problem.
2. Can the engine (less intake manifold) fit over the PS cylinder? If not, what of the steering needs removed first? I can pull the pan too, if needed.
I pretty much have all the accessories removed and ready to go except for two problems.
1. How do you remove the A/C block/lines from the side of the compressor? If you've done this, you know the problem.
2. Can the engine (less intake manifold) fit over the PS cylinder? If not, what of the steering needs removed first? I can pull the pan too, if needed.


I pretty much have all the accessories removed and ready to go except for two problems.
1. How do you remove the A/C block/lines from the side of the compressor? If you've done this, you know the problem.

How do you remove the compressor? Unbolt it (4 bolts) completely. The two bottom bolts come out the bottom. Jack the engine up untill the two top bolts can come out over the frame rail, then continue jacking the engine up and out of the car.
Do not remove the oil pan. It is a PITA and won't gain you much clearance since the oil pickup tube is still there.





I did not. I removed the compressor from the engine itself. The reasoning is very simple; if you remove the compressor, you have to recharge the A/C. That's a $150 expense. I kept everything hooked up, removed the compressor, and saved the money

How do you remove the compressor? Unbolt it (4 bolts) completely. The two bottom bolts come out the bottom. Jack the engine up untill the two top bolts can come out over the frame rail, then continue jacking the engine up and out of the car.
I believe what you are referring to is the Steering Rack. It has to come off; its not that bad. Refer to A&A's Supercharger install instructions.
Do not remove the oil pan. It is a PITA and won't gain you much clearance since the oil pickup tube is still there.
However, the side mount won't allow the upper front bolt to be removed until the compressor is above the fender, at which point the hose to the dash is already too short. I've already opened the system during the radiator removal which also seems to have issues different than the ones on LS2 cars. The extra $150 is nothing compared to the $3000+ the stealership wanted to swap engines.

Lifting the engine enough to disconnect the A/C line might work, but hoping there's another way.
The manual makes it look so easy when the frame isn't there.
Last edited by torquetube; Oct 24, 2010 at 10:27 AM.





I'm obviously missing the trick here. You guys make it sound easy. 45 years of working on cars, machinery, etc. and this has me pulling hair out.
I've already removed the lower 2 bolts from the compressor, the nut on the top rear stud, backed out the stud until it's free, loosened the top front bolt completely, but can't remove that bolt to allow the compressor to move up/down - front/back - or sideways more than 3/4".
I had to bend one of the lines down about a 1/4" to get the bolt head out to the present location. The bolt head is now dead centered with the other line, so it won't go any more. Hmmm!
I'd be willing to bet that the engineers in charge of this design didn't have any hands-on experience with in-car replacement.

I'm currently modifying a 13mm (I hope that's the size) socket to fit in the small space to remove the lines from the compressor. Fingers crossed.

Edit: The severely modded socket worked. Getting it back together may be a new problem.
Tomorrow I'm going to a dealer and ask to see the tool they use, per the manual. Then visit a performance shop to see how they pull a motor without removing the A/C lines.
Last edited by HOXXOH; Oct 24, 2010 at 06:45 PM. Reason: update
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