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400 SBC

 
80shaka
I love my Chevy Chevette!
Posts: 1
Joined: 07/12
Posted: 07/09/12 08:10 PM

is it bad to bore out a 400 sbc .60 over?  

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skyeking
I mow my lawn and find Chevys
Posts: 2738
Joined: 08/09
Posted: 07/10/12 03:53 PM

Hi there,
Not without having the block sonic tested 1st..
When in doubt...Don't.....Skyeking  
skyeking

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68scott385
I mow my lawn and find Chevys
Posts: 1994
Joined: 10/09
Posted: 07/10/12 04:56 PM

+1
cheaper to sonic test first as opposed to boring then having to sleeve it  
68scott385 68scott385 68scott385

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Pontiacman2
Moderator
Posts: 8956
Joined: 09/08
Posted: 07/11/12 10:19 AM

+2 sonic test the block it is better to be safe then sorry.  
Pontiacman2
Pontiacman2

Professional Hi-performance engine builder

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skyeking
I mow my lawn and find Chevys
Posts: 2738
Joined: 08/09
Posted: 07/11/12 06:28 PM

Great minds think alike!!!  Hi People!!!!  
skyeking

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pepsi1
I mow my lawn and find Chevys
Posts: 1718
Joined: 09/11
Posted: 07/11/12 08:10 PM

Hi Noel:
How are you doing?
How's it under the equator?

Bob  

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80bu
I love my Chevy Chevette!
Posts: 2
Joined: 04/13
Posted: 04/10/13 07:26 AM

street yes race track no  

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Dave632
I mow my lawn and find Chevys
Posts: 2253
Joined: 07/08
Posted: 04/10/13 04:32 PM

Icon Quoteskyeking:
Great minds think alike!!!  Hi People!!!!

How are you doing?  
[[SUPPORT AMERICAN CARS, STOMP A RICE CAR TODAY.]]

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Dave632
I mow my lawn and find Chevys
Posts: 2253
Joined: 07/08
Posted: 04/10/13 04:38 PM

I agree sonic testing is the way to tell, there is no other way. If I remember correctly these blocks had Siamese cylinders.  
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busterrm2013
V-6 Camaros rule!
Posts: 46
Joined: 07/13
Posted: 07/17/13 09:11 PM

Yes, by all means sonic test it, but if at all possible buy a Dart SHP block, they have more meat to bore. You can go as large as 454 ci if you bore 4.185 with a 4.125 stroke.  

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68scott385
I mow my lawn and find Chevys
Posts: 1994
Joined: 10/09
Posted: 07/18/13 06:09 AM

dang, another year old thread where the op never returned  
68scott385 68scott385 68scott385

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redneckjoe69
I mow my lawn and find Chevys
Posts: 2337
Joined: 03/10
Posted: 07/18/13 03:38 PM

maybe it didnt pass sonic testing after all?     guess we'll never know? Grin  

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Dave632
I mow my lawn and find Chevys
Posts: 2253
Joined: 07/08
Posted: 07/18/13 06:37 PM

I guess he did not like our advice.  
[[SUPPORT AMERICAN CARS, STOMP A RICE CAR TODAY.]]

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