350 oiling & cam

Discussion in 'Small Block Tech' started by Ron Lobb, Feb 3, 2002.

  1. Ron Lobb

    Ron Lobb BracketRacer

    Wow! I get to be first a something. My spare motor is at the machine shop and I would like to know if it would be worth it to get a set of TA's grooved cam bearings. I already have a set I got from Kenne-Bell years ago. I have not seen much about 350 oiling systems and was wondering if they have the same problems as the 455. I've been racing mine since 87 with no problems. Also I have a C-118 cam & kit from K-B laying around I never used. Has anybody used one in thier 350. :eek:

    Thanks for any replies.
  2. GSThunder

    GSThunder Dejavu

    The 350 doesn't seem to be as hard on cam bearings as the 400-455,but the backgrooved TA bearings are certain to be a step up from the non-grooved type KB sold.As far as the KB118 cam in a 350,I've heard its a good grind for a 350.
  3. Ron Lobb

    Ron Lobb BracketRacer

    Thanks Al, I think I'll order a set today.
  4. alec296

    alec296 i need another buick

    The front cam bearing is most important, I would put the backgrooved bearing there. Oil modifications to block on earlier blocks. Measure sump pickup passage, if it’s not atleast 1/2 inch then open it up , round off 90 degree turns with carbide bit . Use a booster plate. use a 77-80 5/8 pick tube, change oil pressure relief spring for higher upper rpm oil pressure. The 118 is decent, I ran one. Need a 3000 convertor minimum and 9.7 or better compression. Aggressive timing, big valves will help.
    The stock 10 to 1 compression pistons only net 9.2 without block decking or head shaving.
    TrunkMonkey likes this.
  5. TrunkMonkey

    TrunkMonkey Well-Known Member



    Drill and tap to 1/8 NPT

    (I used an 11/32 bit)

    I also drilled a 1/32 hole on the far left of the front (passenger side) oil gallery plug.
    (this was the tapped/threaded shallow TA Performance plug mentioned in Jim Weise's oil mods) to oil the timing gear set.

    Everything you can do to enhance oiling, strength and such on a build is time and money well spent.

    Never understood people spending thousands of dollars and untold hours on a build and then pass on low dollar, and low time to add some insurance.

    Sometimes the little thing is the big thing. :)

    (430 build, but many of the things that are good for the BBB will benefit the SBB as well)
  6. Mark Demko

    Mark Demko Well-Known Member

    I would install all the grooved cam bearings, yes #1 is the most critical, but the other 4 backgrooved bearings will oil the cam journals properly, starting at the 3-4 o'clock position, which is right before the highly loaded area of the bearing.
    The stock bearings introduce oil at the 9 o'clock position, then follows the rotation of the cam, hemmorages out at noon position where theres the most clearance, and you have a dribble left to oil from 3 to 9 o'clock.
  7. jay3000

    jay3000 Well-Known Member

    How did this get dug out of the archives from 02? :)

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