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6.75 inch balancer, which one to buy

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Old Mar 26, 2006 | 05:53 PM
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Car: 88 firebird
Engine: 355
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Axle/Gears: 9 bolt 3.91
6.75 inch balancer, which one to buy

I'm going to buy a new balancer, i'm just not sure if my engine is internally balanced, i'm almost positive it is. It's an 87 and up block with a stock crank rods and aftermarket pistons. I wanted to get peoples opinions on which balancer to buy. It' doesn't have to be sfi approved. thanks
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Old Mar 27, 2006 | 08:32 AM
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Parts store replacement will do fine. Your engine is mostly internally balanced (flexplate/flywheel has a little counter-balancing on it, but not the balancer). No small block except the old 400 ever had a counter-balance weight on the balancer.
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Old Mar 27, 2006 | 09:59 AM
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From: NY
Car: 88 firebird
Engine: 355
Transmission: t-5
Axle/Gears: 9 bolt 3.91
thanks, will do
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Old Mar 27, 2006 | 10:03 AM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
probably want an 8" balancer for a 350. or else make sure your timing tab matches it.
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Old Mar 27, 2006 | 10:59 AM
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Car: 88 firebird
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Transmission: t-5
Axle/Gears: 9 bolt 3.91
It had this size on it, so i'm not going to change it. I didn't even know I could change the size with no dangerous affects.
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Old Mar 27, 2006 | 10:59 AM
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From: NY
Car: 88 firebird
Engine: 355
Transmission: t-5
Axle/Gears: 9 bolt 3.91
It had this size on it, so i'm not going to change it. I didn't even know I could change the size with no dangerous affects.
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Old Mar 27, 2006 | 11:04 AM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
hmm, ok. usually that's the 305 size. whichever you like I guess, the timing tab would match it, so if it had a 6.75" one, then yea, might as well stick with it.
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Old Mar 27, 2006 | 12:56 PM
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From: NY
Car: 88 firebird
Engine: 355
Transmission: t-5
Axle/Gears: 9 bolt 3.91
I remember the guy at the machine shop telling me it was a 305 crank, which I didn't even know would fit into a 350 block. The person told me it was a stroker. I didn't know any better, it felt quick to me.
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Old Mar 27, 2006 | 01:00 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73

305 crank explains the 6.75" balancer. stroker is just...
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Old Mar 27, 2006 | 05:30 PM
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From: NY
Car: 88 firebird
Engine: 355
Transmission: t-5
Axle/Gears: 9 bolt 3.91
Yeah the cop that sold me the car told me it had a 383 stroker in it. But I guess you relly can't trust cops.
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Old Mar 27, 2006 | 05:35 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
ok, then finally i'll give an opinion, I got a summit brand non-sfi one, $59-61 depending on 6 3/4" or 8". It's basically a stock replacement, but has timing marks up to 60* BTDC, which is really handy, since I don't have a dial back timing light.
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Old Mar 27, 2006 | 07:47 PM
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From: NY
Car: 88 firebird
Engine: 355
Transmission: t-5
Axle/Gears: 9 bolt 3.91
I think my timing light has a dial back feature, I havne't even used it yet, I will have to read the book, thanks
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