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using a smaller harmonic balancer?

Old Sep 12, 2007 | 07:13 PM
  #1  
specvgini's Avatar
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From: webster
Car: 1991 Formula
Engine: 5.7
Transmission: 700R4
using a smaller harmonic balancer?

hi, i have a 350 in my firebird and during the swap my 8" balancer off the motor got broken so i'm currently using a l98 balancer witch is visually smaller. My question is if this is bad and can cause under balancing or something or throw the crank shaft off? i plan to get one soon i'm just worried. also what is the standard balancer size for a standard small block chevy 350 4bolt?
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Old Sep 12, 2007 | 07:18 PM
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: using a smaller harmonic balancer?

Stock balancer size depends on application. Using a smaller one is ok.
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Old Sep 12, 2007 | 07:20 PM
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: using a smaller harmonic balancer?

there are 2 different balancers found on 305/350 a 6in and a 8 in.. both will work... however they each have there own timing tab location so trying to time the engine with a 6 in balancer and a timing tab for an 8 inch balancer will be very difficult... they both will do the job
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Old Sep 12, 2007 | 07:22 PM
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: using a smaller harmonic balancer?

Easier than timing it with a 6" tab and an 8" balancer.
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Old Sep 12, 2007 | 07:37 PM
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From: webster
Car: 1991 Formula
Engine: 5.7
Transmission: 700R4
Re: using a smaller harmonic balancer?

thanks for the reply, i can rest easy now. i was kinda worried about it. i have a timing tab for a 8inch balancer and yes i couldn't read timing at all lol Will any 8inch balancer work, i'm probably just gonna buy a cheap one offline or something just so i can read timing off it. i think i seen one on jegs for like 63 bucks or something.
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Old Sep 12, 2007 | 07:54 PM
  #6  
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: using a smaller harmonic balancer?

Any stock replacement 8" balance will work, as long as it's not for a 400.
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Old Sep 12, 2007 | 07:57 PM
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From: webster
Car: 1991 Formula
Engine: 5.7
Transmission: 700R4
Re: using a smaller harmonic balancer?

ok thanks
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