Rod Balancing
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Junior User
Joined: Jun 2010
Posts: 52
Likes: 0
From: Durham California
Rod Balancing
If i purchase new connecting rods for my FE390 do they need to be balanced before installation? Its not a hi revving engine or anything. I need the new rods because I'm turning my FE352 into a 390. Yes i have a new crank. I know people are gonna ask why do i need them haha XD. It all boils down to do i need to balance my new rods?
Lead Driver
Joined: Mar 2004
Posts: 8,922
Likes: 153
Nobody could say with any real degree of certainty, but if it's all OE stuff it might/probably be ok. A balance job is only $200 in my area so even if I just switch pistons I always get it done. With the extent of the job you are doing I would have it done, why take a chance.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
It would be more important to have the rod/piston combos of equal weight and the whole rotating assembly balanced for a high performance application, but for regular use if these components fall withing stock tolerance ranges no additional balancing is necessary.
