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#1
Early a10 and a12 blocks. What's the difference?
Matto1kUte
Posted on: 2021/10/27 14:09
Hi all
I'm referring to the datsun 1000 and 1200 blocks. What are the external differences if any? Can a a12 block be disguised as an a10 block?  
#2
Re: Early a10 and a12 blocks. What's the difference?
ddgonzal
Posted on: 2021/10/28 12:23
Externally the biggest difference is: A10 does not have a block breather
A10 ![Open in new window](javascript:CaricaFoto("http://datsun1200.com/uploads/photos/17129.jpg");) A12 ![Open in new window](javascript:CaricaFoto("http://datsun1200.com/uploads/newbb/174_56ef818ad0204.jpg");) Not only is it missing the hole for the breather, the entire raised section around the breather tube is missing on the A10 block Everything else on an A10 can be changed (newer head, oil pan, restamp with "A12" etc.)
#3
Re: Early a10 and a12 blocks. What's the difference?
Matto1kUte
Posted on: 2021/10/29 8:32
Cool thankyou
Our laws here say I can turbo or supercharge the original motor but being that the a10 is a 3 bearing crank, im not sure how well the bottom end would take it lol. I know the a12 handles boost pretty well and also the high rpm
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