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Old 07-04-2012, 09:21 PM
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1969 Mercedes 280SE - SBC350/T-10

Hey everybody, so I picked up this 1969 Mercedes 280SE W108.018 last June with the hopes of completing it by the February, obviously I missed my target by a few days... Well now I am setting aside my prior problems, mainly procrastination, and am finally hitting the car hard now. I built and blueprinted this SBC 350 last May and have just picked up a Borg Warner T-10 a few days ago.

I will let the pictures do the talking until I have something to say or someone has a question.


Just realized I don't have any good pictures except for this one from the night I bought it...



























































Por15











Cam Bearings




Installed Cam




Balanced Crank




Setup




NASCAR and Porsche only balance to 5grams out of balance, I later got it down to 0.5grams but didnt take a pic of it.




Install Crank and Pistons








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Old 07-04-2012, 09:22 PM
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Cut seats and assembled the heads.

















Got some pics of the porting, sorry for the crappy blurring and focusing my camera was running out of power.








Intakes are just pocket ported, Exhausts have a full port. Both intake and exhaust ports were port matched, De-burred and the "Cliffs of Death" were removed and smoothed out.












Took off the TBI Manifold that was just covering the valley.



Put on the Carb Manifold and indexed the new bolts.



Installed the new HEI Distributor, sorry it was getting dark.

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Old 07-06-2012, 11:52 AM
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Just ordered the last of the parts to get the engine running except for the drive belt assembly and alternator. In the past few days I have also purchased a Borg Warner T10 with aftermarket internals and a Hurst shifter as well as a bell housing, flywheel, clutch linkage kit and clutch kit.

I will be getting back into California on the 10th and plan on hitting this project hard so that I can finally enjoy what I am sinking all this money into.





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Old 07-25-2012, 01:50 AM
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So I got a bit done tonight, I ended up pulling the oil pan since I had a new 1 piece oil pan gasket and found some unwanted friends.... There were these 2 small chunks of cast iron sitting in the bottom of the pan, not something you want to find on an engine that has never been run...

Other than that everything else looked good. Tomorrow I am getting the oil pan, timing chain cover, valve covers and intake manifold ready for paint.





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Old 07-25-2012, 08:28 AM
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Better to find those now, than AFTER you fire it up....
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Old 07-25-2012, 09:41 AM
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Subscribed. Cannot thank you enough for the detailed, step-by-step pictures.
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Old 07-25-2012, 06:50 PM
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While I have a few things taking apart I was planning on repainting the oil pan, valve covers, intake manifold and timing chain cover to spice things up a bit. A friend suggested CAT yellow which I am pretty much sold on.

Any ideas for colors?
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Old 08-05-2012, 10:06 PM
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Well the trans I bought supposedly had an aftermarket set of internals but the guy didn't know what the manufacturer was nor did he know the gear ratios... Well it turns out the gear ratios are pretty bad *** and I cannot find another Sag/Muncie/Borg with anything like it...

Standard Close Ratio
2.20 1.64 1.31 1.00

Standard Wide Ratio
2.54 1.89 1.51 1.00

Mystery Ratio
3.50 2.48 1.65 1.00

This is gonna be interesting...

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Old 08-08-2012, 11:53 PM
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That 3:50 low gear is a real "granny low" stump puller - maybe for a truck? It may redline somewhere around 10 mph!

The gear spacing is gonna give about a bazillion RPM drop on every shift.

Also note that "your" third is the same ratio as second on a "normal" close-ratio box.
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Old 08-09-2012, 06:41 PM
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Quote:
Originally Posted by Dave57210 View Post
That 3:50 low gear is a real "granny low" stump puller - maybe for a truck? It may redline somewhere around 10 mph!

The gear spacing is gonna give about a bazillion RPM drop on every shift.

Also note that "your" third is the same ratio as second on a "normal" close-ratio box.
That's what I was think for the trans, but I thought that most trucks used Muncie M62's or SM465's or something. Originally I was looking for an early NV4500 so I could have the 6.30:1 first gear .

I ran the numbers on everything and it's all good, all of them end at 1:1 anyways

BTW thanks for responding, its nice to know that I am not talking to myself here.
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Old 09-03-2012, 10:56 PM
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Finally made some more progress, Carb, Distributor and Water Pump will go on very soon. I am hoping to get this running by the end of October, only thing hold me back right now is money...

It's CAT Yellow by the way...







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Old 09-04-2012, 12:43 PM
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What kind of flywheel are you going to use? The one piece seal engines use a different flywheel than the 2 piece seal engines. If the bellhousing is made for the flywheel with the 10.5 inch clutch, it won't work with a 11 inch clutch. GM made a lite weight flywheel for the 1 piece seal engines with a 10.5 inch clutch, it weighs about 1/2 of the standard flywheel.
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Old 09-04-2012, 02:11 PM
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Quote:
Originally Posted by V8&4spd View Post
What kind of flywheel are you going to use? The one piece seal engines use a different flywheel than the 2 piece seal engines. If the bellhousing is made for the flywheel with the 10.5 inch clutch, it won't work with a 11 inch clutch. GM made a lite weight flywheel for the 1 piece seal engines with a 10.5 inch clutch, it weighs about 1/2 of the standard flywheel.
Crossed that bridge a few months ago, I just got a standard 153-tooth 2-piece rear main flywheel.
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Old 09-04-2012, 02:18 PM
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Looking good! I like the yellow.
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Old 09-04-2012, 02:56 PM
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I thought you might have had a 1 piece seal engine since you mentioned the 1 piece seal oil pan. I have both the 10.5 and 11 inch flywheels for a 2 piece seal engine, I also have a billet flywheel. That's a Saginaw 4 speed transmission.
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