Identify this cam

Discussion in 'Engine Topic' started by biker, Sep 29, 2021.

  1. biker

    biker Veteran Member

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    This flat tappet hydraulic cam was in the low mile 290 hp GM crate 350 that came with my 81Z.
    Son and I pulled the engine apart yesterday. I'm sure the cam is not stock, but all I could find was a faint stamping on the back of the rear journal.
    Anyone recognize the stamping? To my eye, it looks like "1214 WB".
    20210928_162831.jpg 20210928_162727.jpg
     
  2. camarochevy1970

    camarochevy1970 Veteran Member

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    Elgin has a 1214 cam that has these specs

    Camshaft Type:
    Hydraulic Flat Tappet
    Intake Valve Lift:
    .537"
    Exhaust Valve Lift:
    .559"
    Advertised Intake Duration:
    312°
    Advertised Exhaust Duration:
    322°
    Intake Duration @ .050":
    254°
    Exhaust Duration @ .050":
    264°
    Lobe Separation:
    114°
    Intake Centerline:
    109°
     
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  3. biker

    biker Veteran Member

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    Yikes! I didn't think to measure the lift at the rocker before we took it apart, but if I measured correctly at the lobe, it looks like lift is around .480 if I factor in the stock 1.5 ratio. Given the stock heads and rockers, I can't see anyone putting anything over .500 lift in the engine. It idled fairly smoothly too.

    Thanks for giving it a shot!
     
  4. rotinrob

    rotinrob Veteran Member

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    Not sure but could it be a Wolverine Blue Racer cam? Hence the WB. The factory wasn't too far from my house but than they were bought out by Crane and well one less company to compete against. Crane still makes the Blue racer line but the current catalogue doesn't list a number like that. But Crane didn't continue all the grinds either. The factory 350/290 crate engine is listed with cam 3896962 220/220° @0.050" .450/.460" at 114° CL.
    I have a BBC Wolverine cam in my Chevelle but it currently resides inside the 402 (been there for years) so can't look to see how that is marked and doubt if I still have the cam card. But if memory serves me it looks like Crane still makes that BBC grind.

    rotin
     
  5. biker

    biker Veteran Member

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    Thanks man. Well then, it may well be stock, depending on how accurate my measuring is. I will try again tonight.
     
  6. sandlapper

    sandlapper Veteran Member

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    Sorry biker, dunno what you've got
    I had a new wolverine blue racer cam ... don't recall its PN but recall they all began with WG prefix (not WB). Mine copied L82 grind. Same as above x962.

    crane-blue racer is alive in Australia but they have altogether different PN format ... No WB, No WG, No W anything.

    * and it's way too much cam for Lo-Po, Low-compression 350/290 ... turd down low.
     
    Last edited: Sep 29, 2021
  7. biker

    biker Veteran Member

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    Ok thanks! I do know that it works pretty good and has no problem pulling strong to 6000. That's what makes me think it is not stock. How would you go about accurately mic'ing a lobe?
     
  8. sandlapper

    sandlapper Veteran Member

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    do you have V blocks + dial indicator w/stand + decent 6" Dial or Vernier caliper ?
     
  9. biker

    biker Veteran Member

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    Yes to all of the above.
     
  10. G72Zed

    G72Zed Veteran Member

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    Biker, you can come real close with just a vernier caliper. I just did one, cam was known 262* @ .050 and got within .010 of the lift.

    Measured the lobe base to get the minimum reading, then the max reading on the lobes nose, minus the base reading x 1.5 and there's the cams lift +/- a few thou.

    Adding to sandlapper's post, if you have a degree wheel and an extra dial indicator/stand, you could really find out what you have, kind of like a cheap "cam doctor"
     
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