Conversion - Mercedes-Benz Forum
 
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post #1 of 9 (permalink) Old 05-29-2019, 03:40 AM Thread Starter
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Date registered: May 2019
Vehicle: 73 450sl with SBC motor and trans
Location: Ithaca NY
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Conversion

I am in process of putting a SBC motor and trans in my 73 450sl. I have been driving this car for over 10 years and the time and effort to keep it running was getting to be more work than drive time. The conversion is a lot of work if anyone has any questions on this I can answer on what I have done so far.
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post #2 of 9 (permalink) Old 06-05-2019, 04:01 PM
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Take lots of pics and post a daily or weekly progress report In the (probably distant) future, I'm looking at a SBC (LS2 or LS6) engine going into my 300SEL ...
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post #3 of 9 (permalink) Old 06-05-2019, 06:28 PM
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What was your solution with the steering?

What transmission are you using? Auto or manual?

Looking forward to photos!

'85 Euro 190E 2.3-16
'84 Euro 500SE
'51 Euro 170S
'15 G63 AMG
'97 Jeep Wrangler Sport
'98 Dodge Durango SLT+ 5.9L Magnum V8
'96 Ford F350 7.3 PSD

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post #4 of 9 (permalink) Old 06-06-2019, 02:14 AM Thread Starter
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Date registered: May 2019
Vehicle: 73 450sl with SBC motor and trans
Location: Ithaca NY
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Josh,

Steering stayed the same with the exception of the steering damper. That was whipped and the mount was bent. I cut it off and will replace it. The trans is a GM turbo 400. To make it fit I had to expand the tunnel a few inches. If you have something you would like to see let me know and I can post pics.

Steve
post #5 of 9 (permalink) Old 06-06-2019, 02:23 AM Thread Starter
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Date registered: May 2019
Vehicle: 73 450sl with SBC motor and trans
Location: Ithaca NY
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Gruby,

I wanted to move to a simple motor for my 450sl . This is why I chose the SBC350 with a carb. No electronics. LS motors are more available and less expensive but I did not want to deal with the computer. I dont know your car but my biggest issue was height and dealing with the front sump. So far everything that has gone into this has be modified to fit. It would have not been affordable if a shop was doing it. Let me know if you want to see something as I go.
post #6 of 9 (permalink) Old 06-06-2019, 07:38 AM Thread Starter
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Date registered: May 2019
Vehicle: 73 450sl with SBC motor and trans
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If you go into the R107 forum and check on Conversion you will see my pics.
post #7 of 9 (permalink) Old 06-06-2019, 12:50 PM
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I'll go look at your other thread.

'85 Euro 190E 2.3-16
'84 Euro 500SE
'51 Euro 170S
'15 G63 AMG
'97 Jeep Wrangler Sport
'98 Dodge Durango SLT+ 5.9L Magnum V8
'96 Ford F350 7.3 PSD

~Josh
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post #8 of 9 (permalink) Old 06-06-2019, 04:01 PM
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The oil pan does go the wrong way, but I see tons of conversions for the things in Hot Rod Magazine all the time. I'll bet you could take your own and have a welding shop cut/reattach it to suit. Obviously your pickup tube would have to be elongated as well ...

I'm sticking with an LS because of cost and availability - the aftermarket controllers aren't too expensive... What are you using for a carb?
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post #9 of 9 (permalink) Old 06-06-2019, 05:25 PM Thread Starter
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Date registered: May 2019
Vehicle: 73 450sl with SBC motor and trans
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Gruby,

I used an oil pan from a 68 Nova There are pics if you look at conversion in the R107 forum.

Steve
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