buick 350 lub system mods

[JSBuzz]

I am rebuilding a 350 small block. I understand there are modifications that are recommended to be made to the lubrication system. Does anyone have what the recommendations are for the buck 350?

 

[Bob]

Here is a magazine article which gives those and more build hints:

Buick 350 Engine Build

When I purchased my 1971 Buick GS convertible almost 16 years ago, I knew I had found my dream car. Spending the $4,000 asking price was also a big step as that was pretty much all the money I had …

streettechmag.com

Here's a good Buick Engine Building Book:
How to Build Max-Performance Buick Engines

Suggested Reading:
Performance with Economy by David Vizard

 

[JSBuzz]

Thanks for the help

 

[JSBuzz]

Rebuilding my 350. Called TA performance and they told me I could open up the core line from the screen to the oil pump to 9/16. Right now the line is 7/16 and the recommendation I have seen up till now have all been 1/2. Don't want to screw-up a good block will dive into the recommended articles. Thanks again

 

[Bob]

I have done that many times on a 455. If you are rebuilding at a stock level, even no opening up oil passages is acceptable. And as soon as you consider going to a performance level, any increase is a benefit. Going to limits is not always necessary. Before drilling, carefully look at the hole in the block and examine it for how centrally located in the casting it appears. Should you notice it offset, you may want to make a decision to use a smaller hole.

Always remember, in stock trim, all these motors went a long ways just fine.