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  1. #1
    Join Date
    Nov 2002
    Location
    Boise, ID
    Posts
    45

    Default Valve Springs for a KB113 cam

    I need to replace the valve springs on my 455. It has a KB113 cam, it has been in the car a long time and I have picked up a top end miss at the track, tried everything I can think of and think I have narrowed it down to week springs.
    What do I need? I currently have single springs, unknown brand, they were installed when I had the head work done, and were supposed to work with the cam I have. Not sure if I can even get a hold of the person who did my heads anymore.
    I'm thinking springs, retainers and keepers.

    Thanks,
    Tim Douglas
    Meridian, Idaho

    1966 Skylark 2-dr Hardtop (455)
    1970 Skylark 2-dr Post (455)

  2. #2
    Join Date
    Feb 2002
    Location
    Pine City, MN
    Posts
    9,648

    Default Re: Valve Springs for a KB113 cam

    As far as springs, TA's 1435A will do the job for you.

    Never a bad idea to upgrade the keepers and retainers, but maybe not required. Depends on what you have there.

    JW
    Owner/operator

    Tri-Shield Performance
    Jim Weise
    Founder/Owner
    V-8 Buick.com
    320-629-8999

    Most folks are about as happy as they make up their minds to be.
    Abraham Lincoln
    16th president of US (1809 - 1865)

  3. #3
    Join Date
    Nov 2002
    Location
    Boise, ID
    Posts
    45

    Default Re: Valve Springs for a KB113 cam

    Is there an easy way to tell the difference between Buick and Chevy valves? Pretty sure I have Chevy valves, but it's been too many years!
    Tim Douglas
    Meridian, Idaho

    1966 Skylark 2-dr Hardtop (455)
    1970 Skylark 2-dr Post (455)

  4. #4
    Join Date
    Jul 2006
    Posts
    811

    Default Re: Valve Springs for a KB113 cam

    Quote Originally Posted by stage1455 View Post
    Is there an easy way to tell the difference between Buick and Chevy valves? Pretty sure I have Chevy valves, but it's been too many years!
    Easy to tell when you remove existing keepers. Standard Buick keepers are smooth on the inside to match Buick valves, where chevy type keepers have a step on the inside to match the small groove on the valve. You can look at the TA catalog on line to see the difference. The springs that Jim recommended are the same ones I am using on my C118 cam.

  5. #5
    Join Date
    Nov 2002
    Location
    Boise, ID
    Posts
    45

    Default Re: Valve Springs for a KB113 cam

    What is the recommended installed height for these springs?
    Tim Douglas
    Meridian, Idaho

    1966 Skylark 2-dr Hardtop (455)
    1970 Skylark 2-dr Post (455)

  6. #6
    Join Date
    Feb 2002
    Location
    Pine City, MN
    Posts
    9,648

    Default Re: Valve Springs for a KB113 cam

    Catalog installed height is 1.870 for 100lbs on the seat. Never a bad idea to double check any spring.

    JW
    Owner/operator

    Tri-Shield Performance
    Jim Weise
    Founder/Owner
    V-8 Buick.com
    320-629-8999

    Most folks are about as happy as they make up their minds to be.
    Abraham Lincoln
    16th president of US (1809 - 1865)

  7. #7
    Join Date
    Nov 2010
    Location
    elk city, ok
    Posts
    2,202

    Default Re: Valve Springs for a KB113 cam

    Is it recommended to do a direct swap from stock heads with these springs and don't machine the guide and leave the inner spring out on a 5500 rpm engine?
    Lonnie
    Black 70 skylark post car (Tyler's old car)
    Yellow 72 suncoupe 350/350 8.5.
    72 chevelle with 462 buick 9-9.5-1 estimated cr stock not stage heads lunati 68001 cam 800 cfm qjet. hooker headers and spx intake. th-400. 100 shot
    8.5 3.73 posi
    3200 coan (sold)

    1.78 60 ft 12.2 at 112 mph
    no traction

    first engine i built by myself. gotta love the 3126 cat..pshht.

  8. #8
    Join Date
    Feb 2002
    Location
    Pine City, MN
    Posts
    9,648

    Default Re: Valve Springs for a KB113 cam

    Lonnie,

    These are single springs with a damper, direct replacement for stock springs. No machine work or new parts required.

    JW
    Owner/operator

    Tri-Shield Performance
    Jim Weise
    Founder/Owner
    V-8 Buick.com
    320-629-8999

    Most folks are about as happy as they make up their minds to be.
    Abraham Lincoln
    16th president of US (1809 - 1865)

  9. #9
    Join Date
    Nov 2010
    Location
    elk city, ok
    Posts
    2,202

    Default Re: Valve Springs for a KB113 cam

    Oh I must have misread Ta web sight i thought it said must use deferent seal or machine the guide to fit or remove inner spring. Direct replacement makes it easy
    Lonnie
    Black 70 skylark post car (Tyler's old car)
    Yellow 72 suncoupe 350/350 8.5.
    72 chevelle with 462 buick 9-9.5-1 estimated cr stock not stage heads lunati 68001 cam 800 cfm qjet. hooker headers and spx intake. th-400. 100 shot
    8.5 3.73 posi
    3200 coan (sold)

    1.78 60 ft 12.2 at 112 mph
    no traction

    first engine i built by myself. gotta love the 3126 cat..pshht.

  10. #10
    Join Date
    Dec 2013
    Location
    Sacramento, CA
    Posts
    1,023

    Default Re: Valve Springs for a KB113 cam

    Have you begun testing the beehives yet ?
    Anson Favalessa

 

 

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