S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

GM engine swap

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Old 09-27-2007, 10:08 PM
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1982 380
GM engine swap

hi Guys

I have a s class W126 1982 with a knackerd 3.8 V8. I just bought it really cheap

who do you know that swapped in a chev or other domestic V8 and Tranny ?

Any Ideas ?
Old 09-28-2007, 02:02 PM
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Why not just rebuilt the MB unit, forget about putting GM garbage in that car.
Old 09-29-2007, 10:27 AM
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Originally Posted by BaldBollocks
hi Guys

I have a s class W126 1982 with a knackerd 3.8 V8. I just bought it really cheap

who do you know that swapped in a chev or other domestic V8 and Tranny ?

Any Ideas ?
It is going to cost you many, many times what you paid for the car.
Old 09-30-2007, 12:05 AM
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1990 300SE
is there any real reason to make this swap? many mods can be made without the swap without the expense. more info needed...
Old 09-30-2007, 03:41 PM
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96 SL500, 97 E420
This is why somepeople shouldn't be allowed to have a Benz
Old 09-30-2007, 08:57 PM
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1987 560SEL, 1987 570SEC
Originally Posted by BaldBollocks
hi Guys

I have a s class W126 1982 with a knackerd 3.8 V8. I just bought it really cheap

who do you know that swapped in a chev or other domestic V8 and Tranny ?

Any Ideas ?
I'm about half way through putting a 2002 LS6 GM engine with a custom 4L60E 4-speed automatic overdrive transmission into my '87 560SEC. It's going to be amazing.

I'm also doing a rack-n-pinion steering at the same time. It is a LOT of work and is not cheap, but it will be a significant improvement over the MB engine/tranny.

Why am I doing it? 480 HP / 450 ft. lbs of torque. No more leaky engine, no more leaky tranny, no more $1,000 AC compressor, no more whimpy performance from a gorgeous car.
Old 10-01-2007, 04:55 AM
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V12-Biturbo
Originally Posted by mramay
I'm about half way through putting a 2002 LS6 GM engine with a custom 4L60E 4-speed automatic overdrive transmission into my '87 560SEC. It's going to be amazing.

I'm also doing a rack-n-pinion steering at the same time. It is a LOT of work and is not cheap, but it will be a significant improvement over the MB engine/tranny.

Why am I doing it? 480 HP / 450 ft. lbs of torque. No more leaky engine, no more leaky tranny, no more $1,000 AC compressor, no more whimpy performance from a gorgeous car.
Go brutha! and then swap a Maggie or better yet P1s or D1s (procharger centrifugal, capable of 700+rwhp) the ultimate sleeper
& to those of you nay sayers why not? the Benz in stock form is tot UNDERPOWERED & overweight, this could be a real barn burnerdo it! do it! also as far as cat back deff grab the Bullettsyou wont be disapointed!
Old 10-01-2007, 08:33 AM
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84 300SD
I saw a guy this weekend that put the 617 mercedes diesel in his ford ranger
now that is cool
Old 10-01-2007, 01:11 PM
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'03 SL55
Originally Posted by BaldBollocks
hi Guys

I have a s class W126 1982 with a knackerd 3.8 V8. I just bought it really cheap

who do you know that swapped in a chev or other domestic V8 and Tranny ?

Any Ideas ?
Two pieces of advice...

First, check out the Conversions & Hybrids forum at LS1 Tech: http://www.ls1tech.com/forums/forumdisplay.php?f=28. A lot of friendly, knowledgeable people over there.

Second, if you follow through on the swap, the LS series engines have a lot of virtues: lightweight aluminum block, high horsepower, high torque, reasonable reliability, low cost, easy to modify.

Good luck!
Old 10-05-2007, 07:36 PM
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420 se sedan
Cool engine change

if you want more power wy in donīt you put v12 engine?????
Old 10-08-2007, 05:18 AM
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Originally Posted by samu
if you want more power wy in donīt you put v12 engine?????
Too many cyclinders for that car...too big....
Old 10-09-2007, 06:24 PM
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420 se sedan
Talking engine

600SEC C126-youtube-motor from 140 series...
Old 10-11-2007, 03:48 PM
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1982 380
Rack & Pinion

I love the rack and pinion idea as it free's me from the front sump hassle

what parts are you going to use ?

Will it screw up the geomatry ?

Is there any good reading material so I can get clued up on this ?

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