The head of my 300SE (m103) is worn.
Will a m103 260 head fit?


Rob

2.6 head uses slightly smaller valves and the chamber is a different shape -- so will it "fit", yes. But no, you should not use it.

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Thanks.

I was afraid it wouldn't work, explains why 260 head are much cheaper.

Rob

Have you had a quote to rebuild what you've got yet?

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I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

The 260 head will change the compression ratio, and might make it so high that it won't work with pump gas.

These heads can be fixed up almost no matter what's wrong with it. I had one corroded between combustion chamber and water jacket. They welded it up and it's still on the car. That was in 2000.

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The car is running on LPG, harder on the valves and seats.

Seats are worn, one valve seems to be leaking.
Cam has seen better times after +300K mls.

Of course it can be fixed, but new seats, cam, rockers, machining valves etc. will be more expensive than a good used head.

Local junkyard had one from a 260 that looked like new for $ 250 , including cam
300's with higher milage are $ 400 including cam.

I will pull the head tomorrow, the view from my scope was not very clear.

Rob

I have a 92 300E head that is good shape with the cam but no rocker arms, make me an offer plus shipping
kchemers@hotmail.com

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Thanks for the offer.

I think it will be easier to get one a bit closer to home.
My main transportation is now an old motorcycle and it's getting colder.

Luckily 300's are not very rare over here.

Rob

Found a complete engine with half the mileage for $400 at a local shop that specializes in converting Mercedes from petrol to diesel.

Rob

Sorry didnt notice that you were across the pond, yes would be a lot cheaper to go local

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'05 Ford Escape 100,000 miles
'87 560SL 92000 miles
'89 300TE 199,000 miles
'02 Audi TT 100,000 miles
'00 Ford Excursion V-10 121000 miles
'92 Mercury Capri 100000 miles
'02 BMW 325XI 60000 miles
'92 230CE 160000
'87 BMW 535SI 160,000 miles
'93 Rinker Captiva 209
5 Kids
2 Dogs
1 Wife

Car runs great again with the "new" engine.

Rob

Same here. Had one car (300e 2.6) with a head problem. Sourced a complete engine for $ 460.00. Changed it myself. Head rebuild would have cost far more.
Interestingly I replaced the 2.6 engine with a 3.0litre. Left the 722.4 on. Car goes very well with 2.6 EZL and 2.6 ECU.

Complete engine for $460.00 included everything - water pump, fans, AC, inlet manifold and complete injection. (Engine 170,000K's - 110.000miles)