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which harmonic balancer do i need 383

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Old 06-30-2011, 08:10 AM
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Car: 1991 B4C Camaro RS
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which harmonic balancer do i need 383

Hello. I have a 1991 l98 block with a 383 stroker kit in it I bought off ebay 3 yrs ago and assembled it has a eagle nodular cast one piecein crank, Eagle 5.7 forged SIR Rods.

I have been using my stock l98 flexplate and harmonic balancer. I have broken two pf the l98 balancers over the years.

My question is...... Am I using the right balancer? Do I need a 400 sbc balancer? Or or is the 350 balancers I have been using the right one? Have I been using the wrong balancers all along?

I don't remember when I bought the kit if it was internally balanced. I did not have the engine balanced. I did all the work in my garage.
Old 06-30-2011, 01:19 PM
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Car: 82 firebird
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Re: which harmonic balancer do i need 383

if its a 400 crank and not internal balanced you need a 400 balancer and flywheel/flexplate
Old 07-01-2011, 12:25 PM
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Re: which harmonic balancer do i need 383

Originally Posted by 91_B4C_RS
My question is...... Am I using the right balancer?

I don't remember when I bought the kit if it was internally balanced.
That's a problem.
Old 07-01-2011, 02:30 PM
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Re: which harmonic balancer do i need 383

You need a 400 balancer.
Old 07-01-2011, 05:42 PM
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Re: which harmonic balancer do i need 383

and flex plate
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