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400 SBC

  
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400 SBC

 
80shaka 80shaka
New User | Posts: 1 | Joined: 07/12
Posted: 07/09/12
09:10 PM

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

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 07/10/12
04:53 PM

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

68scott385 68scott385
Guru | Posts: 1990 | Joined: 10/09
Posted: 07/10/12
05:56 PM

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

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

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

Professional Hi-performance engine builder

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 07/11/12
07:28 PM

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

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 07/11/12
09:10 PM

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

Bob  

80bu 80bu
New User | Posts: 2 | Joined: 04/13
Posted: 04/10/13
08:26 AM

street yes race track no  

Dave632 Dave632
Addict | Posts: 2225 | Joined: 07/08
Posted: 04/10/13
05:32 PM

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

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

Dave632 Dave632
Addict | Posts: 2225 | Joined: 07/08
Posted: 04/10/13
05:38 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 busterrm2013
New User | Posts: 46 | Joined: 07/13
Posted: 07/17/13
10:11 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.  

68scott385 68scott385
Guru | Posts: 1990 | Joined: 10/09
Posted: 07/18/13
07:09 AM

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

redneckjoe69 redneckjoe69
Addict | Posts: 2337 | Joined: 03/10
Posted: 07/18/13
04:38 PM

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

Dave632 Dave632
Addict | Posts: 2225 | Joined: 07/08
Posted: 07/18/13
07:37 PM

I guess he did not like our advice.  
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