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Question about engine block
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Author:  691cam [ Fri May 23, 2014 10:25 pm ]
Post subject:  Question about engine block

Hey everyone I'm am currently build a mini and I want to build a 1275 turbo. I'm finding it hard to find a 1275 block. I have had a couple of guys offer me 1100s blocks or morris 1300 block just wondering if these are the same or am I better hanging out for a 1275 block? And if they are the same do the have the same internals
Thanks cam :)

Author:  drmini in aust [ Fri May 23, 2014 10:43 pm ]
Post subject:  Re: Question about engine block

Morris 1100S and 1300 are both basically the same 1275cc block.
BL just chose to call them by stupid names for confusion.
They are stronger than a Cooper S block but a bit heavier. Can also be bored out a bit further than an S.

Early 1100S motors up to ~12YD/Ta/H 10500 have a small journal crank and Cooper S rods.
Later ones and the 1300 have a big journal crank and rods.

I run a 1300 auto block with a Cooper S crank in it so there is interchangeability.

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