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  #1  
Old 04-05-2012, 10:39 AM
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'75 450SL engine availability

Well, we've decided to keep the 450SL we bought last November. Mainly, because nobody wants it at any price~! Engine is a bit tired, low compression in two cylinders. Anyway, other than that, it starts right up, idles great, suspension is nice and tight, minimal rattles, brakes work great, body is very straight, nice paint, once it warms up, minimal smoke out back.

Have a line on an engine, but it's 600 miles away! Friend of a friend kind of deal, and he tested the compression, and it's right up there. Whatever right up there means! I can get the engine and tranny for free. I'm a good wrench, have a car lift and tranny lift to assist in the transplant. However, we're under a time constraint from moving back to WI from our new place in AZ, the engine is in NM. Are these engines rare? Or, easy to find? I"m not into tearing it apart and rebuilding it. I have two Porsche 924 turbo projects underway that need finishing. Thanks. Dave.


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1986 Mercedes 300 SDL
1975 Mercedes 450 SL
1985 Porsche 911
1980 Porsche 924 Turbo
1981 Porsche 924 Turbo
1971 Jeep CJ5 Renegade II
1995 Jeep Wrangler lifted
2001 Ford F350 Diesel to find more junk
2004 Car Trailer, to haul junk that the truck finds.
1993 Damon Challenger, diesel pusher RV
1958 Pam - Loving wife that puts up with the above!
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  #2  
Old 04-05-2012, 11:36 AM
Walrus's Avatar
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Quote:
Originally Posted by Grenadiers View Post
...Engine is a bit tired, low compression in two cylinders. Anyway, other than that, it starts right up, idles great, suspension is nice and tight, minimal rattles, brakes work great, body is very straight, nice paint, once it warms up, minimal smoke out back...
Why not just keep using it, if it is as described? How bad is the comp?

Quote:
Have a line on an engine, but it's 600 miles away! ... I can get the engine and tranny for free...
No brainer... go get it whatever it takes. A new short block is around $6000. Used engines, while available, are all gonna be around 30 years old, so what would you expect? An engine that checks good has gotta be worth $1500-2000 and a tranny, another grand approx.

When were you trying to sell it, and what asking price? Location matters, of course... I would think yours would sell for around $2000 plus/minus, given the stated condition. Rust is the usual killer.
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1988 560SL

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  #3  
Old 04-05-2012, 11:46 AM
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Join Date: Nov 2011
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Thanks for the info. Car is currently in Prescott, AZ. Wife originally wanted 4500 for it, after she spent 10 hours detailing the outside and inside of the car! I'm thinking more like 2500, new battery, new tires. No rust except, a hole in trunk right above the muffler. Here's a pic of it:
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1986 Mercedes 300 SDL
1975 Mercedes 450 SL
1985 Porsche 911
1980 Porsche 924 Turbo
1981 Porsche 924 Turbo
1971 Jeep CJ5 Renegade II
1995 Jeep Wrangler lifted
2001 Ford F350 Diesel to find more junk
2004 Car Trailer, to haul junk that the truck finds.
1993 Damon Challenger, diesel pusher RV
1958 Pam - Loving wife that puts up with the above!
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  #4  
Old 04-05-2012, 01:38 PM
Admiral-Third World Fleet
 
Join Date: Feb 2002
Location: Central FL
Posts: 3,069
There's one close to me for $100, but that's not going to help. They must be out there, especially in the rust belt.
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  #5  
Old 04-05-2012, 02:05 PM
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yeah, we'll make a decision on the free engine soon. Probably go back that way on the way back to Wisconsin. Ran the car up to temp, and on a lark turned on the A/C. ICE COLD~!
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1986 Mercedes 300 SDL
1975 Mercedes 450 SL
1985 Porsche 911
1980 Porsche 924 Turbo
1981 Porsche 924 Turbo
1971 Jeep CJ5 Renegade II
1995 Jeep Wrangler lifted
2001 Ford F350 Diesel to find more junk
2004 Car Trailer, to haul junk that the truck finds.
1993 Damon Challenger, diesel pusher RV
1958 Pam - Loving wife that puts up with the above!
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  #6  
Old 04-05-2012, 07:22 PM
Arizona Real Estate Guy
 
Join Date: Feb 2011
Location: Phoenix, AZ
Posts: 44
I'm in Desert Hills an Hour South of you off the 17, for a steal I could deal with another Pain in the a** as long as the engine was part of the deal... AND maybe the lift and trans jack!!
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  #7  
Old 04-05-2012, 08:22 PM
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Join Date: Nov 2011
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Did I mention it has cold A/C? Snort~!
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1986 Mercedes 300 SDL
1975 Mercedes 450 SL
1985 Porsche 911
1980 Porsche 924 Turbo
1981 Porsche 924 Turbo
1971 Jeep CJ5 Renegade II
1995 Jeep Wrangler lifted
2001 Ford F350 Diesel to find more junk
2004 Car Trailer, to haul junk that the truck finds.
1993 Damon Challenger, diesel pusher RV
1958 Pam - Loving wife that puts up with the above!
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  #8  
Old 04-05-2012, 09:12 PM
Arizona Real Estate Guy
 
Join Date: Feb 2011
Location: Phoenix, AZ
Posts: 44
'75 450SL engine availability-75-450sl.jpg
mine blows cold too.
looking for its sister!

how to make big like yours?

Last edited by AZreGuy; 04-05-2012 at 09:26 PM.
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  #9  
Old 04-07-2012, 09:08 AM
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Join Date: Dec 2000
Location: Long Island, NY
Posts: 4,357
I presume you want to drive the SL north?

Put the free engine on a pallet and ship it to Wisconsin. That will be cheaper and faster than finding another motor.

If you are trailering the car, then pull the motor, put in the new one and if you don't have it reconnected, well, who cares since you're trailering the car.

Lastly, if you car has those reactor exhaust manifolds, this engine swap is a great opportunity to remove them. You will need a fresh set of manifolds and new down pipes for the exhaust.

-CTH
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  #10  
Old 04-07-2012, 10:01 AM
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Join Date: Nov 2011
Posts: 30
Big problem I have, I don't care much for this car. It's beautiful, wifey has always wanted one, the key ingredient to dilemma. I'm more into our P-car collection. I understand the CIS system in the 924 turbo cars real well I'd rather work on them than the 450. I have to decide on trailer space between the 450SL and my '85 Porsche 911. If any of you have ever been in SW Wisconsin, the Mississippi River bluff country, where we live, has hundreds of miles of twisty roads. Perfect for the 911.

On the way home, wife drives the '86 Mercedes 300SDL, I drive the diesel truck/trailer combo platter.
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1986 Mercedes 300 SDL
1975 Mercedes 450 SL
1985 Porsche 911
1980 Porsche 924 Turbo
1981 Porsche 924 Turbo
1971 Jeep CJ5 Renegade II
1995 Jeep Wrangler lifted
2001 Ford F350 Diesel to find more junk
2004 Car Trailer, to haul junk that the truck finds.
1993 Damon Challenger, diesel pusher RV
1958 Pam - Loving wife that puts up with the above!
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  #11  
Old 04-07-2012, 07:55 PM
Arizona Real Estate Guy
 
Join Date: Feb 2011
Location: Phoenix, AZ
Posts: 44
I see what YOU wanted to sell her for, subtract all the hassle and PM a good deal, you can deal with it for 1 more hour and leave with cash!
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  #12  
Old 04-08-2012, 02:22 AM
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Join Date: Jul 2011
Location: Albuquerque, NM
Posts: 57
Grenadiers,

If you don't keep the car, I am interested in the NM engine you mentioned as I live in ABQ. Would your friend entertain a sale to a neighbor from this forum?

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'73 450 SL
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