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Old 08-10-2011, 11:11 AM
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swp1983 swp1983 is offline
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383 engine vibrations????

New engine installed and still chasing a vibration. It is present in and out of gear and starts at 2900 rpm and smooths out at 3200 rpm. I have double checked all drivetrain bolts, timing, ignition, rocker adjustment, new plugs ( non foul), disconnected belts and pulleys, put on the old balancer, and checked the compression. Now im wondering if the flexplate / torque converter was installed correctly. Any pointers? Here are the specs:
1969 C10: 383 with scat rotating parts externally balanced, isky 280 cam, dart heads, turbo 350 with 3000 stall.
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