Mercedes S Class Mercedes S350, Mercedes S430, Mercedes S500 and Mercedes S600 Sedans.

do the exhaust ports on the m103 motor match up to the m603?

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Old May 26, 2013 | 03:47 PM
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Default do the exhaust ports on the m103 motor match up to the m603?

Im wondering if the exhaust ports on the m103 match up with the ports on the m603? See where Im going with this?

No? Ok well I have both motors and id really like to turbo my 103 with the parts from the 603. My weak knowledge of the two motors says the ports should line up. Both L6. Both 15 degree. Both sit in the same body with a 2 year difference in production.

If this rings true, i may be able to turn my dirt cheap(600$) w126 into the screaming white highway cruse missle it so deserveingly wants to be!

Any help or info would awesome!

Ryan

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Last edited by ForcedInduction; May 27, 2013 at 06:44 AM.
Old May 27, 2013 | 08:59 AM
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So whats the best way, other than an engine swap, to get this poopy motor to fly?

Also I have the 1991 350sdl, that was where I was going to pull from. Also swaping the larger radiator and AUX fans from the front clip. Again Just from looking they seems to be interchangable.
 
Old May 27, 2013 | 09:03 AM
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Also Ive seen coil over conversion kits from H&R. Wondered if anyone had experience with them?
 
Old Jun 2, 2013 | 04:28 PM
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Originally Posted by ForcedInduction
Since you already have the part, your best bet is to weld all the bolt holes closed to start with a clean and strong plane.
Or, you could tap the holes, put grade 5 bolts in them and cut them off flush. Grade 5 is much softer than grade 8 and will be easier to drill with less risk of breaking the bit.
Well the parts were there. The true owner, my pops, has forbid me to mangle his car just to kill myself in mine. His words. Now I need the manifold from somewhere. Any idea where i might find one?
 
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