1997 350 engine

Discussion in 'Chevy Truck Forum' started by devasa, Mar 6, 2008.

  1. devasa

    devasa New Member

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    I have a 1997 350 5.7 in my chevelle. What is the spark plug gap, is it.035 or .045. What should the timing be, TDC or how many degrees before top dead center. The motor is stock.
     
  2. NCroadracer

    NCroadracer Senior Member

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    Here are some specs for your 97 5.7 L.... As for the timing, depends on what you're using for an ignition system.


    Engine Mechanical Specifications (5.7 L)
    Application
    Specification
    Metric
    English
    General Data
    • Engine Type
    V8
    • Displacement
    5.7 L
    350 CID
    • RPO (VIN Code)
    L31 (R)
    • Bore
    101.63 mm
    4.0012 in
    • Stroke
    88.39 mm
    3.480 in
    • Compression Ratio
    9.4:1
    • Firing Order
    1-8-4-3-6-5-7-2
    • Spark Plug Gap
    1.52 mm
    0.060 in
    • Oil Pressure (Minimum at Normal Operating Temperature)
    42 kPa at 1,000 RPM
    125 kPa at 2,000 RPM
    166 kPa at 4,000 RPM
    6 psig at 1,000 RPM
    18 psig at 2,000 RPM
    24 psig at 4,000 RPM
     
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  3. crabtruck

    crabtruck Senior Member

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    Hey NC, is that last spec a typo ? My 5.7 specs it at 40psi @ 4,000rpm
     
  4. NCroadracer

    NCroadracer Senior Member

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    No... Those are the Minimum acceptable specs. Seems low, but not a type-o.
     
  5. Sneakysportsman

    Sneakysportsman Senior Member

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    One more thing, make sure your plugs are long enough to go all the way into the combustion chamber. Argued with an idiot @ A*^$3^E Auto about this. Make sure you buy plugs of the proper thread length.
     
  6. crabtruck

    crabtruck Senior Member

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    Went back to check up on my reading.
    Turns out it wasn't a typo
    It was a read-o, you were again right.
     
  7. 436'd skylark

    436'd skylark Senior Member

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    I would run about 10-12 initial, 38 total all in at 2500 or so.
     

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