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Can I get some specs ??? 98 Vortec 350

This is a discussion on Can I get some specs ??? 98 Vortec 350 within the Technical / Maintenance forums, part of the General Discussion category; need some specs on a 98 Vortec 350 I'd like to know things like HP at what RPM TQ at ...

  1. #1
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    Can I get some specs ??? 98 Vortec 350


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    need some specs on a 98 Vortec 350 I'd like to know things like

    HP at what RPM
    TQ at what RPM

    Compression ratio
    Valve sizes
    valve spring specs
    Cam Specs
    Cylinder Head flow #'s & CC's
    what kind of pistons (flat, dome, dished)
    what material pistons(cast, forged, hyper-pathetic)
    what kind of crank and rods (forged, cast, nodular)

  2. #2
    You feel lucky......Punk? RnuovZ71's Avatar
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    Re: Can I get some specs ??? 98 Vortec 350

    HP at what RPM............. 255 @ 4000
    TQ at what RPM..............300 @ 2400

    Compression ratio.....9.6:1
    Valve sizes...........I'll have to look it up
    valve spring specs....I'll have to look it up
    Cam Specs.............I'll have to look it up
    Cylinder Head flow #'s & CC's...I'll have to look it up
    what kind of pistons.....(IICR) there flat
    what material pistons....(IICR) hyper-pathetic
    what kind of crank and rods....Forged
    Last edited by RnuovZ71; 08-04-2006 at 10:31 PM.

    Infantryman in the US Army

  3. #3
    technut
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    Re: Can I get some specs ??? 98 Vortec 350

    Valve sizes...........1.94" (I) 1.50" (E)
    valve spring specs....Installed Height 1.750" 80# closed 200# open
    Cylinder Head..... 64cc combustion chambers, 170cc intake runners
    68?cc exhaust ports, iron head
    what kind of pistons.....flat top/dished pressed wrist pins
    what material pistons.... cast aluminum
    what kind of crank and rods.... cast iron crankshaft
    powdered metal connecting rods.

    airdeano
    Last edited by airdeano; 08-04-2006 at 10:53 PM.
    2001 Silverado 4.8L 4-spd Automatic 3.42
    ? horsepower
    ? torque
    will find out soon!

    1965 C10 5.3L (SSR) TH4L60e
    (It's Alive! 07/04 It Drives! 03/05 Daily Driver XX/08!)

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    You feel lucky......Punk? RnuovZ71's Avatar
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    Re: Can I get some specs ??? 98 Vortec 350

    Quote Originally Posted by airdeano
    Valve sizes...........1.94" (I) 1.50" (E)
    valve spring specs....Installed Height 1.750" 80# closed 200# open
    Cylinder Head..... 64cc combustion chambers, 170cc intake runners
    68?cc exhaust ports, iron head
    what kind of pistons.....flat top/dished pressed wrist pins
    what material pistons.... cast aluminum
    what kind of crank and rods.... cast iron crankshaft
    powdered metal connecting rods.

    airdeano
    Damn, at least I got 2 right.

    Infantryman in the US Army

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    Re: Can I get some specs ??? 98 Vortec 350

    1996 250 hp @ 4600 rpm 330 lb/ft @ 2800rpm
    1997-2002 255hp @ 4600 rpm 330 lb/ft @ 2800 rpm

    cam specs
    192/197 duration @ 0.050" lift
    0.413"/0.427" lift with 1.5:1 rockers
    111 LSA

    9.4:1 compression ratio
    flow cfm
    intake 239 @ 0.500" valve lift
    exhaust 147 @ 0.500" lift open exhaust and 160 with pipe @ 0.500: lift

    Intake to exhaust ratio of 62% with open exhaut or 66% with pipe

    The pipe prevents shear at the exhaust port and is more representative of an actual exhaust port with a manifold or header installed.

    Plus all of Airdeanos info is correct. The L31 engiens used in the 2500 and 3500 trucks over 8600 lbs gvrw have 4 bolt mains.

    RnuovZ71, sorry to spoil your fun, the torque figure you posted was for a TBI 350.

    peace
    PAuly
    97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph

  6. #6
    Gbodyolds is my biotch
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    Re: Can I get some specs ??? 98 Vortec 350

    I'll give you some spec's
    It had enough power to move my hoe (both of them)so just put it in your pos and leave it alone!!!!!!
    lol
    30 psi of boost is like a hot chick with a std you want to hit it but are afraid of the consequences!


    http://www.myspace.com/454tahoe

  7. #7
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    Re: Can I get some specs ??? 98 Vortec 350

    har-de-har-har you must be really bored at work tonight

  8. #8
    Gbodyolds is my biotch
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    Re: Can I get some specs ??? 98 Vortec 350

    Quote Originally Posted by Gbodyolds
    har-de-har-har you must be really bored at work tonight
    Different night, Still bored
    30 psi of boost is like a hot chick with a std you want to hit it but are afraid of the consequences!


    http://www.myspace.com/454tahoe

  9. #9
    You feel lucky......Punk? RnuovZ71's Avatar
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    Re: Can I get some specs ??? 98 Vortec 350

    Quote Originally Posted by Pauly
    RnuovZ71, sorry to spoil your fun, the torque figure you posted was for a TBI 350.

    peace
    PAuly
    Im used to it pauly, I realy need to start looking out side the TBI's. LOL

    Infantryman in the US Army

  10. #10
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    Re: Can I get some specs ??? 98 Vortec 350

    Quote Originally Posted by 45**AHOE
    Different night, Still bored
    Bring some porn with you tommorow night and masturbate, that ill kill about 60seconds for ya, just be carefull you dont want to look like him.



    or you can
    Last edited by Gbodyolds; 08-08-2006 at 01:48 AM.

  11. #11
    Gbodyolds is my biotch
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    Re: Can I get some specs ??? 98 Vortec 350

    30 psi of boost is like a hot chick with a std you want to hit it but are afraid of the consequences!


    http://www.myspace.com/454tahoe

 

 

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