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General Motors Company Message Board

  • bigdaddyo_55 bigdaddyo_55 Jul 31, 2011 8:01 AM Flag




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    • Spark Plugs

      The 230 engine was equipped with type 46N spark plugs. The 283 was equipped with type 45 spark plugs. The 327 was equipped with type 44 spark plugs. The 409 was equipped with type 43N spark plugs. The spark plug gap for all engines was the same at .035 inches.


      The distributor specifications are the same for all available engines. The point gap was .019 inches if new points were being installed and .016 inches if the existing points were being adjusted. Dwell angle was 30 degrees.

      Ignition Timing

      Ignition timing for the 230, 283 and 327 engines was four degrees before top dead center. Ignition timing for the 409 engine was 12 degrees before top dead center.

      Idle Speed

      The idle speed for the 230 engine was 500 rpm regardless of the type of transmission. Idle speed for the 283 and 327 engines was 475 rpm if equipped with the manual transmission, and 450 rpm if equipped with the automatic transmission. Idle speed for the 409 was 750 rpm with the manual transmission and 475 with the automatic transmission.

      Cylinder Compression

      Cylinder compression was 130 pounds for the 230 engine, 140 pounds for the 283 engine and 160 pounds for the 327 and 409 engines.

      Fuel Pump Pressure

      Fuel pump pressure for the 230 engine was between 3.50 and 4.50 pounds. Pump pressure for the 283 and 327 engines was between 5.25 and 6.50 pounds. Pump pressure for the 409 was between 7.25 and 8.50 pounds.


      "Motor's Auto Repair Manual"; Ralph Ritchen; 1968

      Read more: 1964 Chevrolet Tuneup Specs |

      • 1 Reply to webuchadnezzar_reva
      • Just give us your American Dollars so we can loan them back to you.
        Thank You the Japanese people. We encourage a credit downgrade so we can collect more interst on your money.

        Analysts estimate that Japanese vehicles exports are profitable when the dollar is trading at 85 yen or thereabouts. When the dollar fetches fewer than 85 yen, most Japanese automakers can't export profitably.

        The yen was trading at just over 77 to the dollar on Friday, near the record set this year, when it broke the last record of 79.75 yen to the dollar set in 1995.

        "Exports shipped out of Japan face direct competitive pressure from a stronger yen as there is little ability to adjust pricing in local currency given the competitive state of key markets," Sanger wrote in a research report.

        He said Toyota Motor Corp. and Nissan Motor Co. appear to be most exposed to the yen's rise because of the amount of vehicles and components they ship from Japan. Honda Motor Co., Suzuki Motor Corp. and Toyota's minicar affiliate Daihatsu are the least exposed among Japan's carmakers.

        Honda and Toyota are both reporting results this week for the April-June quarter, the first quarter of the Japanese fiscal year.

        From The Detroit News:

31.635+0.035(+0.11%)12:33 PMEDT