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Is my crank okay?

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Old Apr 10, 2006 | 08:55 PM
  #1  
Token's Avatar
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From: Toledo, OH
Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
Is my crank okay?

LIGHT damage from pulling the rods and pistons in a hurry...

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Old Apr 10, 2006 | 09:03 PM
  #2  
ME Leigh's Avatar
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From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Holy **** what is that, it looks freakin bad.
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Old Apr 10, 2006 | 09:06 PM
  #3  
Apeiron's Avatar
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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
Yeah, that's pretty bad. If it doesn't come out with polishing it'll have to be ground.
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Old Apr 10, 2006 | 09:28 PM
  #4  
Token's Avatar
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From: Toledo, OH
Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
yikes, is it really that bad!?
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Old Apr 10, 2006 | 09:57 PM
  #5  
DLV555's Avatar
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Posts: 359
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From: Findlay, OH USA
Car: 1987 Monte Carlo SS
Engine: 400 SBC
Transmission: 200-4R
Axle/Gears: 4.10
Yeah that's pretty noticable. I'd plan on having it machined.
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Old Apr 10, 2006 | 10:00 PM
  #6  
Apeiron's Avatar
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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
A few cents worth of 3/8" hose pays for itself pretty quick.
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Old Apr 10, 2006 | 10:03 PM
  #7  
Token's Avatar
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Joined: May 2003
Posts: 1,995
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From: Toledo, OH
Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
okay, so what you're really saying is that it's time for a 400 crank????
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Old Apr 10, 2006 | 10:05 PM
  #8  
Apeiron's Avatar
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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
A 383 crank maybe, if you want to buy new rods and/or pistons to go with it. If you're on a budget though you can just have the crank ground and polished.
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Old Apr 10, 2006 | 11:13 PM
  #9  
Sonix's Avatar
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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
my crank was turned down .010" 'mid' for $120. A new 383 crank (if you plan on getting new rods and pistons, which I did, so I shoulda done that...) can be had for low $200s...

but yea, you'll need a machine shop to touch that up. rod bolt boots are about $2 (my machinist gave me 2 packs free), and are worth it.
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Old Apr 11, 2006 | 12:06 AM
  #10  
Apeiron's Avatar
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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
If you're feeling especially cheap you could have just the one journal turned down.
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