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cooperess
 Post subject: 12G940 / 12G938 Head
PostPosted: Sun Feb 14, 2021 2:07 pm 
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1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
I have the above head that came without valves. In order to rebuild this head I need to purchase some valves. Do I need to measure the valve seats in order to know the valves sizes I need.
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drmini in aust
 Post subject: Re: 12G940 / 12G938 Head
PostPosted: Sun Feb 14, 2021 2:47 pm 
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religious status
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Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39752
Location: near Baulkham Hills, NSW
It could have had larger valves fitted, but the standard exhausts were 29.4mm, inlets 33.4mm.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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