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Engine sizes with oversize bores
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Author:  66S [ Wed Jul 15, 2009 7:45 am ]
Post subject:  Engine sizes with oversize bores

Hi guys,
Does anybody know the capcities of a 1275 with oversize bores please?

.020" 1293
.030"
.040'
.050"
.060"

Regards
Al

Author:  sgc [ Wed Jul 15, 2009 9:31 am ]
Post subject:  Re: Engine sizes with oversize bores

66S wrote:
Hi guys,
Does anybody know the capcities of a 1275 with oversize bores please?


By my spreadsheet it's:

.020" 1291.6
.030" 1300.8
.040" 1310.1
.050" 1319.4
.060" 1328.7

Author:  Drexxle [ Wed Jul 15, 2009 10:39 am ]
Post subject: 

and they will all differ dependant on how much youve modified everything else.

Lapping the block, or head, modifying the head, different pistons, different rods and so on.

Author:  66S [ Wed Jul 15, 2009 10:41 am ]
Post subject: 

Thanks Simon.

Drexxle, swept volume is just that, bore and stroke. Nothing else influences it. You may be getting confused with compression ratios.

Regards
Al

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