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Oil cooler - line size??

Discussion in 'The Garage' started by jms, Aug 4, 2004.

  1. jms

    jms 1/2 ton status Author

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    I'm thinking about installing a small engine oil cooler using -6AN line (I actually have some Aeroquip hose and some ends left over from other projects). Here's my question: is the -6 size enough? My motor is a carbed 350 w/ Vortec heads, stock cam, and rarely sees anything over 4000 rpm. I just don't want to starve the motor for oil. As always, any info is greatly appreciated, thanks, michael
     
  2. ntsqd

    ntsqd 1/2 ton status

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    No.

    You need -8 at a minimum and -10 would be prefered.
     
  3. fortcollinsram

    fortcollinsram 1/2 ton status

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    I agree... 1/2" minumum...I am making mine outa of 5/8"...

    Chris
     
  4. m j

    m j 1/2 ton status

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    factory engine oil cooler lines are 1/2"ID hose with aluminum tubing that is only 1/2"OD
    sounds kinda -6ish to me
     
  5. 84_Chevy_K10

    84_Chevy_K10 Banned

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    -6 = 3/8

    -6 AN = 6/16" = 3/8"

    If 1/2" is stock I'd go no smaller than that, which would be -8.
     
  6. jms

    jms 1/2 ton status Author

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    Thanks everyone for the information /forums/images/graemlins/thumb.gif ; I had initially scoped out a compact aftermarket cooler that has -6 fittings, but got suspicious when I saw that the Moroso oil filter adapter I planned on using has 1/2"NPT ports. Would have been too easy to just use the plumbing parts I already have, back to the drawing board....
    Thanks, michael
     
  7. K5 NUTT

    K5 NUTT 1/2 ton status

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    Michael....when i finally added the factory cooler to the 79 i made mine out of number 8 an....and bought some adapters from a hydraulic shop to mate it to the gm cooler...cheaper than buying gm lines if you should choose to go that route...

    DW
     

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