Balancing
Supreme Member
Joined: Jul 2001
Posts: 3,931
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From: Palm Bay, Florida, USA
Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
Do you mean balancing the crankshaft? I believe our crankshafts are internally balanced, so as far as a harmonic balancer, we just need a neutrally balanced one. But don't quote me on that..I'm no engine tech.
Supreme Member
Joined: Jul 2000
Posts: 4,541
Likes: 2
Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
is it just a re-ring? or are you installing new hard parts?
just a re-ring, you should be ok
new hard parts, balancing is advised
just a re-ring, you should be ok
new hard parts, balancing is advised
Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Yep, harmonic balancers were all neutral balanced from 82-92 (and probably 93-up, as well). But 82-86 2.8's are externally balanced, on the flywheel. Makes things kind of a bitch, especially if you're trying to change an 82-86 flywheel. But 87 started the year for the DIS-equipped Gen II motors, so a center counterweight was added (with notches for DIS), which allowed the 2.8's to be internally balanced. The Gen I motors, starting in '87, used the same crank as the Gen II's, even though the notches on the counterweighta ren't used for DIS. 
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