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Original Message
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RE: Don't forget about the balancing |
By Rusty - 02/02/2001 9:09:15 AM; IP 63.113.183.187 |
Yes, balancing is very important (even on a cruiser) when going to the 428 crankshaft. The 428 shaft is externally balanced (there is weight added to the flywheel) while the 390 is internally balanced. If you are doing a crankshaft swap, I recommend taking all parts to a good machinist and having the 428 shaft internally balanced (usually 2 to 3 small pieces of mallory metal added to back counterweight of shaft), unless you have the balancer and flywheel that came with the 428 shaft. In this case, I would still have it balanced, but the work/cost should be minimal. I normally pay between $150 and $250 to have 428 shafts internally balanced, and all other parts balanced. Rusty |
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