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Small Valve 1275Cc Head


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#1 Fastorq

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Posted 04 January 2019 - 07:42 PM

Just bought a complete 1275cc carbd RSP engine and box which apparently is a downtuned MG Metro
Have read that it delivers 60bhp and not 72bhp due to the head having smaller size valves.

Is it just a case of changing the head only to bring the bhp up to 72bhp ??

Cheers
DavidR

#2 Turbo Phil

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Posted 04 January 2019 - 11:39 PM

You won't see 12hp just from fitting a 35.6mm inlet valve.

Phil.

 



#3 Chris.Williams

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Posted 05 January 2019 - 01:49 AM

If only ?




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