71 Chevelle TH350 to T56 Magnum Conversion: Step-by-step with pictures - Page 3 - Chevelle Tech
Transmission & Driveline Transmissions and Differentials

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post #31 of 32 (permalink) Old Today, 12:13 AM
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Justin
 
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Quote:
Originally Posted by senna View Post
Quote:
Originally Posted by Portagee View Post
Testing out engine block off plate for the QuickTime bellhousing, looks great!

Except.... milodon oil pan drain plug is definitely in the way. Super lame, because I can't drop the oil pan and swap it out without pulling the engine - don't wanna do that again.

Plan is to plug this hole with some flush NPT plug or something, and carefully cut/weld new drain plug on the bottom.

Anyone else run into this problem?
Looks like it would be easier to notch the bell housing to clear the existing drain plug. And use an Allen head bolt so you won't need the extra clearance for a socket.

I would think it would be difficult to weld on the pan without being able to clean the exsisting oil from inside the pan.

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Exactly what I was thinking. I’d definitely notch the bell housing
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1974 chevelle with 73 laguna nose sbc 357 Brodix IK180 heads Comp Cams XE274H Edelbrock RPM airgap 650 AED double pumper, M20 muncie, Truetrac with 3.73s
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post #32 of 32 (permalink) Old Today, 2:21 PM Thread Starter
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Mike
 
Join Date: May 2016
Location: Sonoma County, CA
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Re: 71 Chevelle TH350 to T56 Magnum Conversion: Step-by-step with pict

Thanks, everyone. I will rethink my plan regarding the drain plug. I had initially thought I could notch it, but that QuickTime bellhousing is super thick! Will see what I can come up with, because I'd love to not have to mess with the oil pan at all.
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