Engine conversion W140 - '94 S320 -> M119 4.2 V8

1991- Present : 300SE, S320, 400SE, 400SEL, S420, 500SEL, S500, 600SEL, S600, 500SEC, S500, 600SEC, S600
S320 CDI, S320, S430, S500, S600, S55 AMG, S63AMG, S65AMG
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Joined: Mon 06 Mar, 2017 4:41 pm
Model you own: w140

Engine conversion W140 - '94 S320 -> M119 4.2 V8

Post by Hallivand » Mon 06 Mar, 2017 5:21 pm

Hey everyone,

First time poster and recently acquired an S320 - in beautiful condition and for an absolute bargain (3.5k!) @ 174k on the clock registered. Wondering if anyone has any insight into retrofitting the 4.2 (potentially the 5.0 too) from a similar year model chassis. Whether there's any difference in bell housing, significant electrical differences (I believe 95+ ties ignition to VIN?).

Cheers in advance, here's a pic of the old girl.


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Model you own: w204
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Re: Engine conversion W140 - '94 S320 -> M119 4.2 V8

Post by Ivanerrol » Mon 06 Mar, 2017 5:48 pm

As the saying goes - anything is possible given the amount of funds thrown at it.

Wouldn't be worth the dollar value to go from a six to the eight.
If you did consider it I wouldn't bother about the 4.2 - go straight for the 5.0

You need to remember that your car falls into the dreaded biodegradable engine wiring harness era.

If you have one of these and it's in excellent condition - just drive it as it is. There's just about nothing short of the Maybach to compare to it's ride and ambience.
W211 - E240
W204 - C280
W202 - C200, C180, C180
W126 - 380SE , 380SE (Ex SA Import), 560SEL
W124 - 300e, 260e (ex Japan)
W111 220s (Indonesia) 4 speed manual column shift
W123 230
W116 450SEL
W140 420SEL
W210 E240, E240
W209 CLK 240
W201 190e 2.6 (ex U.K.)

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Model you own: w111
Location: Sydney

Re: Engine conversion W140 - '94 S320 -> M119 4.2 V8

Post by brycedunn » Sat 11 Mar, 2017 6:04 pm

W140s are not very expensive.

if you want an 8 (or even a 12) then you would be much better off selling your current car and buying a car that came that way originally. It will be much cheaper than changing the engine of your current car.
250SE & 450SLC

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