68 390 harmonic balancer
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Senior User
Joined: Feb 2004
Posts: 123
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From: North Carolina
68 390 harmonic balancer
hello ratsmoker, I am new here at FTE as a member. however I have used this site for referance material before as a guest. so did you ever try the romac balancer? I read in an old post along time ago you were thinking abought it. I am in need of a good street replacement for my worn out stock unit. looking foward to your reply.
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Senior User
Joined: Feb 2004
Posts: 123
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From: North Carolina
Well I called the guys at Custom Performance Racing and questioned them if the new ROMAC unit would need to be driled to match my old unit. the answer was yes. the problem I have with this is the old unit came from my old 390, I replaced the engine three years ago. but had no problems that I can tell with vibration. the recent problem with the outer ring moveing is whats driveing the train on the ballancer replacement. so does any body have some input on this? CPR recomended removeing the crak shat and haveing the ballancer matched to it. looking for some in put.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
To do it right you need to remove the crank rods and pistons and have it balanced. I used another identical balancer and drilled it to match. You would be wasting your time with drilling the romac as it is probably lighter.
that will be the best time.
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