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PostPosted: Thu Jun 02, 2011 3:44 pm 
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Location: Valley Mills, Tx.
Year and Trim: 2000 SE
Just curious. I'm sure that some one has tried/done this. Is it more trouble than it's worth? Would the rest of the motor/transmission stand up to the increase in power?

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PostPosted: Thu Jun 02, 2011 3:48 pm 
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Location: Orlando Fl
Year and Trim: '00 SSEi (proj), '99 Tahoe & '05 Bonne GXP
Simple answer is "no". Long answer is "Yes, it can be done, BUT......"

(working on the list now)

Topswaps for the L36 are all the rage in the GP and Impala crowds, and the ones that are done right tend to last the longest. Here, we tend to discourage such swaps unless 1) You are absolutely sure you know what you are doing, 2) It will not be your daily driver anymore, and 3) You understand that such an undertaking needs to be carefully planned, and that your car will no longer be able to run worth a *dang* on 87 octane.

Given those conditions, it's a lot easier for us (and it is a more sensible approach) to just get one that is already 'charged. Second recommendation would be to transplant the L67/4T65 HD into your ride, including the harness and PCM, and have the PCM programmed to your vehicle.

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Looks like a Volt, Sonata, and Taurus got it on.


Last edited by sandrock on Thu Jun 02, 2011 3:55 pm, edited 2 times in total.

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PostPosted: Thu Jun 02, 2011 3:52 pm 
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viewtopic.php?f=12&t=25655

Yes it's been done, no I don't recommend it. Selling your SLE and buying an SSEi is the best route.

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PostPosted: Thu Jun 02, 2011 3:53 pm 
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97 Buick LeSabre
It's cheaper to sell your car and buy an SSEi, more reliable too. Otherwise, the next best option is to swap the PCM, wiring harness, engine, transmission, axles, etc.

You CAN do a top swap, but for most, it won't be reliable long-term, and most don't have the ability to tune it properly.

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PostPosted: Thu Jun 02, 2011 4:04 pm 
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Location: Valley Mills, Tx.
Year and Trim: 2000 SE
I'm convinced, just thought I'd ask.

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PostPosted: Mon Jun 06, 2011 10:02 pm 
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Year and Trim: 2004 white diamond gxp
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i top swapped mineand i love it. tuning would have been an issue had i not been able to do it myself as the tune i was sent was CRAP!!!!!!!!!!!!!!!


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PostPosted: Wed Jun 08, 2011 4:43 am 
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Yes, tuned numerous vehicles that have been topswaped most guys I ask takes around 16hrs, if you do it yourself and take your time. Tuning is no different than the supercharged cars, just have to be a little more conservative. You don't have to swap transmissions, pcms, wireing harness etc.. as stated above don't know why that was stated. Just swap your dif in the trans and passenger side axle, have your pcm recalibrated, and bolt on the topswap parts and enjoy...you will be just as reliable as any other l67/l32 on the road w/ cheaper vehicle insurance.

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Last edited by Larz01 on Wed Jun 08, 2011 4:46 am, edited 1 time in total.

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PostPosted: Wed Jun 08, 2011 7:23 am 
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I know it can be done... You know it can be done... The L36 - L26 is a good engine, beefy rods for an NA V6, The pistons do leave a bit to be desired as far as boost goes... A lot of people have top swapped, but mistakes in the tune followed with the I / O Error in the drivers seat can end with a popped 3800...

I have thought about a top swap... But do not want to do this on an L36/26 Bottom end... And at the same time in my Case I have an L67 Complete... I would install new bearings, pistons and rings before I use it... As well as some head porting and the like... I got a good price on mine( really good ) it was too hard to say no...

The L36/L26 is supposedly reliable to 300HP, beyond that anything can happen.. a lot of people have top swapped, and I have seen a lot of them hold up... But we have seen them fail as well... Some of this is the person tuning wrong and or getting carried away...

The trans is the same for the NA and SC, difference is in the Diff, diff cover and Passenger axle like stated... The 3.05 diff would work as long as there were no one wheel wonders... I would seriously recommend a 3.29 HD... The difference in the spiders and pin are remarkable( at least in my eyes )...


If the OP does this I have a couple of simple questions...

1) Is this your Daily Driver?

2) Are you willing to pay to play? things do and will go wrong and break.. Happens when you make more power...


Now personally I have issues with recommending an L36-26 for a blower application or turbo... Its a weaker bottom end... I am not saying people can't do this.. But I always wonder if you are going to drop the coin on charging it why not drop the coin and get the charged motor...

Making more power always interests me... I always like to watch and see the progress...

In a cartman voice " I love you guys " :beerchug:


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PostPosted: Wed Jun 08, 2011 8:22 am 
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Top swapping is the least reliable way of doing it, and has far more limits down the road than a full drivetrain swap.

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