'70 GS 350 Upper Rad Hose

Discussion in 'Small Block Tech' started by Clarkie, Aug 12, 2010.

  1. Clarkie

    Clarkie Well-Known Member

    Is the upper rad hose different for a GS vs a Skylark? The local parts store asked if it had a dual snorkel air cleaner and the listing he came up with was the ribbed type universal fit hose. I really want a molded hose. I see that Year One lists an upper hose that is Skylark only, and not a GS listing, and The Parts Place has only one listing for GS and Skylark. Please help.
     
  2. Dan Healey

    Dan Healey Well-Known Member

    Did you try NAPA auto parts?
     
  3. DEADMANSCURVE

    DEADMANSCURVE my first word : truck

    my listing is similar ( carquest ) std and optional top hose listings without "dual snorkel" ( probably referring to ram air hoods ? ) . with dual snorkel is a flex listing . checked 455 listing also but got the same kinda answers . its gates stuff so napa etc may be same info . you may have to try dayco or other good brands that may still have stock on some of the older oem type hoses . del
     
  4. DEADMANSCURVE

    DEADMANSCURVE my first word : truck

    new TA catalog has hoses listed , just looked on website but could not come up with pics ? will check catalog when i get home from work . del
     
  5. Roberta

    Roberta Buick Berta

    Gates 20980 works for 455 and 350
     
  6. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    1970 BUICK GS 5.7L 350cid V8 : Cooling System : Radiator Upper Hose Wiki Price
    GATES Part # 25487 More Information About this Part Flexible Coolant Hose (Standard); 1 1/2" x 30"
    Upper ; W/Dual Snorkel Air Cleaner; Cut to fit

    Part Image
    $10.10
    Add to Cart
    GATES Part # 20577 More Information About this Part Molded Coolant Hose; 1 1/2" x 28 19/32" Does Not Contain Spring
    Upper ; W/O Dual Snorkel Air Cleaner; Preferred Hose

    Part Image
    $11.81
    Add to Cart
    ACDELCO Part # 31641 More Information About this Part {#88909262} 1 1/2" x 30"
    HOSE,FORMABLE W/DUAL SNORKEL AIR CLEANER, CUT TO FIT; UPR

    Part Image
    $13.05
    Add to Cart
    GATES Part # 20869 More Information About this Part Molded Coolant Hose; 1 1/2" x 27 29/32" Does Not Contain Spring
    Upper ; W/O Dual Snorkel Air Cleaner; Optional Hose

    Part Image
    $13.68
    Add to Cart
    ACDELCO Part # 26005X More Information About this Part {#88908704} 1 1/2" x 28 19/32"
    HOSE,MOLDED W/O DUAL SNORKEL AIR CLEANER, PREFERRED HOSE; UPR

    Part Image
    * Non-stock item--shipping delayed up to 5 business days
    $14.47
    Add to Cart
    ACDELCO Part # 26028X More Information About this Part {#88908727} 1 1/2" x 27 29/32"
    HOSE,MOLDED W/O DUAL SNORKEL AIR CLEANER, OPTIONAL HOSE; UPR

    Part Image
    * Non-stock item--shipping delayed up to 5 business days
    $16.03
    Add to Cart
     
  7. DEADMANSCURVE

    DEADMANSCURVE my first word : truck

    will have to check out the ac #31641 part number at work fri . had an old gates catalog in shop but it did not go back far enough . checked opg - waste of time . checked TA catalog , they list part #TA2056D $25.00 ( 70 skylark 350 ) - but - only one part# listed/no options , so i'm afraid its probably the non-ram air version ? if something does not turn up you may just have to sit down with a hose pic/spec catalog and start figurin it out . del
     
  8. Clarkie

    Clarkie Well-Known Member

    Thanks for all of your help folks!
     
  9. DEADMANSCURVE

    DEADMANSCURVE my first word : truck

    31641 - crossed to the flex hose #
    the gm number did not cross on my work computer
     
  10. gsjohnny1

    gsjohnny1 Well-Known Member

    since i keep a lot of old books;
    gates
    1969-1970 gs350
    upper 20689
    lower 20597
    bypass 20521

    1969 350
    upper 20980, cut @ B
    1970 350
    upper 20577 or 20869

    1970 gs455
    upper 20980, cut @ B
    lower 20597, cut @ A,B
    bypass 20605

    enough info?
     

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