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Valve guide question

Old Nov 9, 2007 | 10:50 AM
  #1  
Doherty13's Avatar
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Valve guide question

if i break a valve guide on a cast head can i have it punched out and replaced?
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Old Nov 9, 2007 | 11:36 AM
  #2  
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
Re: Valve guide question

How did you break a valve guide?
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Old Nov 9, 2007 | 11:57 AM
  #3  
Doherty13's Avatar
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Re: Valve guide question

it was cracked when i removed the head..., when i removed the valvespring a chunk fell out
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Old Nov 9, 2007 | 12:00 PM
  #4  
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
Re: Valve guide question

Sounds like you need a new head.
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Old Nov 10, 2007 | 11:18 AM
  #5  
Beast407's Avatar
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Re: Valve guide question

A competent machine shop should be able to bore out the cast-in guide and drive in a replacement "false" guide. The valve seat will have to be reground at the same time.
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