300 V8 rubber fuel line size?

[BuickGS65]

What is the correct rubber fuel line size (i.e. after the fuel pump, heading to the carburetor) for the 300 V8? 5/16" or 3/8"?

Same size for both 2bbl and 4bbl carbs?

I was unable to find this in the service manual or the parts book.

Thanks for any info.

Dan

[Aussie Skylark]

Hi Dan,
 
I cannot remember off the top of my head, can have a look tonight when I'm home and report back.

Regards

Marcus

[telriv]

5/16ths.

Tom T.

[BuickGS65]

5/16ths.

5/16" was the "universal" OEM fuel line size for 1965 Buicks, whether 2bbl, 4bbl, 300, 401, hard line or rubber line - were ALL 5/16" in 1965, correct?

[BuickGS65]

5/16ths.

5/16" was the "universal" OEM fuel line size for 1965 Buicks, whether 2bbl, 4bbl, 300, 401, hard line or rubber line - were ALL 5/16" in 1965, correct?

Bump. Is 5/16 fuel line the universal size for ALL 1965 Buick models and engine sizes? Thanks

[BuickGS65]

5/16ths.

5/16" was the "universal" OEM fuel line size for 1965 Buicks, whether 2bbl, 4bbl, 300, 401, hard line or rubber line - were ALL 5/16" in 1965, correct?

Bump. Is 5/16 fuel line the universal size for ALL 1965 Buick models and engine sizes? Thanks

Just wanted to triple confirm that 5/16 is the correct rubber fuel line size for ALL 65 Buick models regardless of engine size (300 all the way to 401/425). Is that correct? Thanks