I am interested to know if anyone has a OM603 oil pump and the exhaust manifolds. I am looking to at some point turbo my M103 and those are compatible parts I will need. I have never seen a OM603 at the yards so this is probably my best bet. Let me know if you have them and how much you would want for them.

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.

PM sent

I have the exhaust manifold from a 603

Oil Pump

https://www.benzbonz.biz/store/index.php?main_page=product_info&cPath=48_43&products_id=1963

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Compare the 603 gaskets to M103, they may or may not be the same.

Youre in that far, stroke it with a 603.97 crank ...

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Gone to the dark side

- Jeff

I've done this and neither bolts up. Be prepared to re-engineer everything.

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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE 104.980
Milled & ported head, 10.3:1 compression
197° intake cam w/20° advancer
Tuned CIS ECU
4° ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff

I know the issues with the exhaust manifold, I am prepared for that, but what needs to be done with the oil pump?


Also what is the advantage and engineering required for the 603 crankshaft?

Also I do have an oil cooler for this engine from a OM602 turbo. I am trying to make sure I can do everything possible to keep the engine cool.

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.

The gear on the crankshaft that drives the oil pump is not in the same location due to the different spacing between the duplex and simplex timing chains in the respective motors. I had to shorten the snout of the pump and re-machine the tri-oval drive back onto the shortened drive shaft.

As far as the stroker crankshaft it will net your more displacement but requires custom everything. Not worth it on a boosted motor.

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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE 104.980
Milled & ported head, 10.3:1 compression
197° intake cam w/20° advancer
Tuned CIS ECU
4° ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff

I underrstood that it is the same crank used in the AMG 3.6.

__________________

Gone to the dark side

- Jeff

It is, just highly modified. If I could find a good C36 engine I would go for that but none are in my area.

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.

I have a stock manifold and euro manifold and am local. I'll give you a stock one for a 12pack of something good. Euro will cost you. I have a HX30W currently mounted on the euro manifold along with intercooler and all the piping. I've also got a muffler setup that is pretty much straight back.

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1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
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