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Balancing Rotating Assembly

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Old Aug 13, 2005 | 12:50 PM
  #1  
IROC-Z28_CAMARO's Avatar
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From: Toronto, Ontario
Car: 1988 IROC-Z, 95 Z-28
Engine: 357, 350 LT1
Transmission: Built 700-R4, 6-Speed
Axle/Gears: 2.73 Peg Leg, 3.42 Posi
Balancing Rotating Assembly

Well I bought a new crank, Eagle cast steel, and while everything is out of the mototr thought it would be a good idea to get the rotating assembly balanced.

What would this typically cost, and if anyone knows of a good machine shop please refreance them.

I have heard about Straight Line Racing, has anyone had experience with these guys and what would the charge for this job.

Thanks, Josh.
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Old Aug 13, 2005 | 01:04 PM
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Sinister Z's Avatar
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From: Toronto, On.
Car: 1985 IROC-Z / Z-28
Engine: 383 C.I. Stroked 6.3 Litre
Transmission: 700R-4
Axle/Gears: 3:73 Posi
I alwys deal with straight line racing, Andy is a straight up no bull**** type of guy that's fair on prices, I don't know what he will charge but give him a call and see. 416 757-9804
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Old Aug 13, 2005 | 01:14 PM
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Daz
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Is this with stock pistons?The cost depends on how much time they spent removing or adding metal. IT also depends on how much Mallory they have to add.
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Old Aug 13, 2005 | 01:32 PM
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Sinister Z's Avatar
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From: Toronto, On.
Car: 1985 IROC-Z / Z-28
Engine: 383 C.I. Stroked 6.3 Litre
Transmission: 700R-4
Axle/Gears: 3:73 Posi
I know that a 383 rotating assemble is $1500.00 it comes complete with crank, pistons, rods, bearings and flywheel.
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Old Aug 13, 2005 | 01:37 PM
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IROC-Z28_CAMARO's Avatar
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From: Toronto, Ontario
Car: 1988 IROC-Z, 95 Z-28
Engine: 357, 350 LT1
Transmission: Built 700-R4, 6-Speed
Axle/Gears: 2.73 Peg Leg, 3.42 Posi
These are hypertech pistons .030 over and stock rods with arp bolts.

http://store.summitracing.com/

They are speed-pro Pistons.

STL-H345NCP30

Thanks for the quick replies.

Last edited by IROC-Z28_CAMARO; Aug 13, 2005 at 01:39 PM.
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Old Aug 13, 2005 | 03:40 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
The most popular machine shop around here charges $350. The best one is $250.
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Old Aug 13, 2005 | 03:47 PM
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From: Ajax, ON
Car: 85Z28 87GTA 91GTA 98SS
Engine: SBC, LS-x
Transmission: T-5, 700-R4, T-56
Andy doesn't have the eqpt. to turn a crank does he? I thought he sent that stuff out?
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Old Aug 13, 2005 | 04:59 PM
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Sinister Z's Avatar
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From: Toronto, On.
Car: 1985 IROC-Z / Z-28
Engine: 383 C.I. Stroked 6.3 Litre
Transmission: 700R-4
Axle/Gears: 3:73 Posi
Yeah! I'm pretty sure that he sends it out!
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Old Aug 13, 2005 | 05:11 PM
  #9  
Cruz'N Bruz'R's Avatar
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From: Cincinnati, OH
Car: 87 Iroc Z
Engine: 383ci.
Transmission: WC-T5
I had mine done in Montreal, which is closer to me.

I paid $250 flat. But I din't need any Mallory added. mallory plugs are $$$ and tend to add up if neede, but considering your stating with an aftermarket crank, you should be OK.
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Old Aug 13, 2005 | 05:12 PM
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IROC-Z28_CAMARO's Avatar
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From: Toronto, Ontario
Car: 1988 IROC-Z, 95 Z-28
Engine: 357, 350 LT1
Transmission: Built 700-R4, 6-Speed
Axle/Gears: 2.73 Peg Leg, 3.42 Posi
$350

Is it a big deal if I don't balance it. For that kind of money I could put it some where else.
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Old Aug 13, 2005 | 05:28 PM
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From: Ajax, ON
Car: 85Z28 87GTA 91GTA 98SS
Engine: SBC, LS-x
Transmission: T-5, 700-R4, T-56
Depends on how many clicks are on it or if it was abused. How does it look? All the journals have a nice polished look to them? Inspect it closely. Wouldn't hurt to have it checked. That doesn't cost much at all.
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Old Aug 13, 2005 | 05:57 PM
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IROC-Z28_CAMARO's Avatar
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From: Toronto, Ontario
Car: 1988 IROC-Z, 95 Z-28
Engine: 357, 350 LT1
Transmission: Built 700-R4, 6-Speed
Axle/Gears: 2.73 Peg Leg, 3.42 Posi
Well the crank is brand new. As for the rest of the short block goes it is all brand new as well.
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Old Aug 13, 2005 | 07:14 PM
  #13  
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From: Cincinnati, OH
Car: 87 Iroc Z
Engine: 383ci.
Transmission: WC-T5
The best $350 you could spend on the motor hands down. I made the mistake of not doing it through 2 rebuilds, then I broke down, I had it done, and kicked myself for not doing it earlier.
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Old Aug 14, 2005 | 07:12 AM
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you dont need it unless youre gonna race it constantly.Personally I wouldnt bother
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Old Aug 14, 2005 | 10:24 AM
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IROC-Z28_CAMARO's Avatar
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From: Toronto, Ontario
Car: 1988 IROC-Z, 95 Z-28
Engine: 357, 350 LT1
Transmission: Built 700-R4, 6-Speed
Axle/Gears: 2.73 Peg Leg, 3.42 Posi
Tahts what I was thinking. The motor is for a street car that will see the od 6000 rpm blast but not to often.
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Old Aug 14, 2005 | 06:57 PM
  #16  
Cruz'N Bruz'R's Avatar
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From: Cincinnati, OH
Car: 87 Iroc Z
Engine: 383ci.
Transmission: WC-T5
There's a reason why assemblies are balanced, and it's not just for racing.

It's your money though, so you can take the extra $250-350 and buy a throttle body for it or something, and get 10hp, or have it balanced and get 10 more years of life out of the motor.
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Old Aug 14, 2005 | 08:28 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
I don't think I'd ever not balance an assembly.
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Old Aug 14, 2005 | 11:24 PM
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Originally posted by Daz
you dont need it unless youre gonna race it constantly.Personally I wouldnt bother
Incredible.

IROC-Z28-CAMARO....spend the $ and have it balanced. This will enhance bearing life if done properly & is definetly worth it, especially if you have the CHOICE of doing it which you dont get in a STOCK GM motor.
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Old Aug 15, 2005 | 12:47 AM
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Daz
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I stand by my opinion..

lol
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