garry Posted February 2, 2003 Share Posted February 2, 2003 i have installed a new scat 383 crank and it virbrates the car to pieces i need help please the only thing i have replaced is the crank and pistons????? Quote Link to comment Share on other sites More sharing options...
Mike C Posted February 2, 2003 Share Posted February 2, 2003 The 383 crank is externally balanced. It requires a harmonic balancer from a SBC 400 and flywheel as well. Don't drive it anymore until you get the correct parts, you will tear up the bearings. Quote Link to comment Share on other sites More sharing options...
deMideon Posted February 3, 2003 Share Posted February 3, 2003 I just recently bought a scat crank for my 377 build. Scat told me all of their cranks require balancing. I had mine inernally balanced so I would have more flywheel options, as I am running a T-56. Quote Link to comment Share on other sites More sharing options...
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