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Tx Firefighter · 12-13-2012, 10:17 AM

I've put one of those Dorman units on all the sixes I've built, including the 230 in my 63. The 250 and 230 units interchange other than some having single pulley grooves and other having double grooves. You may end up with an unused pulley groove.

Here is a thread discussing this very issue.

http://www.chevytalk.org/fusionbb/sh...d/273200/pid//

12-13-2012, 10:17 AM	#14
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: 1963 230 L6 harmonic balancer question I've put one of those Dorman units on all the sixes I've built, including the 230 in my 63. The 250 and 230 units interchange other than some having single pulley grooves and other having double grooves. You may end up with an unused pulley groove. Here is a thread discussing this very issue. http://www.chevytalk.org/fusionbb/sh...d/273200/pid// Last edited by Tx Firefighter; 12-13-2012 at 10:26 AM.