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cam specs

Discussion in 'The Garage' started by adamforsythe, Apr 7, 2005.

  1. adamforsythe

    adamforsythe 1/2 ton status

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    Hello,
    Please post your camshaft specs. I want a idea on what you guys are running.
    Thanks
    Adam
     
  2. sled_dog

    sled_dog 1 ton status

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    Location:
    Austin, TX
    Factory GM LT4 camshaft(not the LT4 HOT cam):

    203/210 @ .050
    .476"/.480"
    115 LSA
    Roller
    idle - 4500 RPM camshaft

    Going in my TBI 383. Not built yet so no statement about it. Should be a torque monster with 10:1 compression, such little overlap, roller and the duration of course.
     
  3. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    what cam are you running in your engine that you posted the dyno specs on?

    In my tpi 350, i put in a "350 horse cam" hydraulic flat tappet.
    212/222 Duration @ .050 .435"/.460" lift 112 LSA.

    My 469 BBC for my street/strip camaro i'm going from a hydraulic roller 238/248 duration @ .050, .578"/.608" lift 108 LSA
    to a bigger solid roller cam..
    260/260 Duration @ .050 .587"/.587" lift 108 LSA
     
  4. adamforsythe

    adamforsythe 1/2 ton status

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    Hello,
    Here you go.
    http://www.compcams.com/Technical/Search/CamDetails.asp?PartNumber=08-409-8
    Thanks
    Adam

     
  5. akbound

    akbound 1/2 ton status

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    This is what I am running in my 9:1 355. It is lopey at idle.

    Camshaft Specification Table
    Part Number 12-256-4
    Engine 1955-1998 Chevrolet
    262ci-400ci
    8cyl.
    Grind Number CS XE256H-12
    Description

    --------------------------------------------------------------------------------

    Intake Exhaust
    Valve Adjustment 0 0
    Gross Valve Lift 0.449 0.456
    Duration At 0.006 Tappet Lift 256 268

    --------------------------------------------------------------------------------

    Valve Timing At 0.006
    Open Close
    Intake 20 56
    Exhaust 70 18

    --------------------------------------------------------------------------------

    These Specs Are For The Cam Installed At 108 Intake CL
    Intake Exhaust
    Duration At 0.05 212 218
    Lobe Lift 0.299 0.304
    Lobe Separation 112
     
  6. dirtwarrior17

    dirtwarrior17 Banned

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    Location:
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    here is what i run in my 355 (10:1)
    duration:
    .222/.222
    Lift:
    .447/.447

    Crane cams hydralic lifter replacement for the L-79 (327CID/350 hp) cam.
    same cam that came in the 350 hp 327's in the old corvettes but its hyd lifter and the grind is a little different.

    Real nice lopey muscle car idle.

    jegs part #270-WG-996K
     
  7. trailblazer86

    trailblazer86 1/2 ton status

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    Location:
    North Shore of Lake Ontario
    214*° 214° Wrong cam with 4:10 and 31's.
    The torque is too high up in the revs.
    I have 4:88's going in with 32" tires. Maybe 33's.
    This cam should work better now.
    If not I will have to install a stall converter.
    I am also running an over drive transmission.
    This may allow me to run the Edelbrock 204° 214° cam.
    I like the idea of big torque at low revs.
     
  8. Mad-Dog

    Mad-Dog 1/2 ton status

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    230/236 duration at .050", 274/286 duration advertised, .490/.490" lift on a 110 degree lobe separation angle.
    350 cid engines enjoy 108 degree lsa's but most cam makers are grinding 110's
    unless you wanna fool with a circle track cam for maximum torque.
    Cylinder heads and compression ratio dictate cam choice but a dual-pattern cam is always preferred unless you're running AFR heads which have a great exhaust port and will over-scavenge the chamber unless a single-pattern cam is installed.
    do your research and make the right choice the first time.
    here is a link to my web page detailing the entire build of a 440hp SBC in my '79 short-bed 4x4

    http://mad-dog16.tripod.com/

    :crazy:
     

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