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Old 10-16-2012, 10:06 AM
06-z0sick 06-z0sick is offline
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Newly Built 383 Engine Vibration. Did i pick the wrong flywheel?

Just had built a 383 stroker

GM 1 piece rear main seal block
Eagle Rotating assembly kit (4.030X3.750 5.7 Rod, -18CC inverted dome) PN: Eagle B13004L Eagle Street and Strip Rotating Assembly

The kit came with everything including harmonic balancer and flex plate. I didnt need the flex plate because the transmission is 4 speed manual.

I used flexplate JEGS Performance Products 601250 JEGS Flywheels
Its a 153 tooth external balance flexplate for 350 chevy 1 piece rear main.

I now have severe engine vibration and gets worse as RPM increases.....

Any thoughts??
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