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Discussion Starter · #1 ·
I'm using the lip style rear main seal on my 289 and just want to confirm that it is okay to install it with an 'offset' to help prevent leaks. The last few motors had the 'flat' style seals so there was no question in my mind.
 

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If youre talking about the two halves of the seal meeting each other at a position other than where the cap meets the block, many engine builders prefer to do just that.
 

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Discussion Starter · #3 ·
Thanks, you're right; I meant offset to the halves to avoid having seals end at the cap ends.
 

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Discussion Starter · #7 ·
What about the 'pin' in the cap, is it best to leave it in or take it out?
 

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Remove the pin. That was to hold the old rope seals that were stock in your engine.
 

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http://a0.cpimg.com/image/50/02/16784720-e736-01CC01D9-.jpg

I've seen it recommended that you put a dab of RTV in the "hole" that is present when you remove that pin from the rear main cap.
 
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