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crabby
 Post subject: head
PostPosted: Wed Nov 21, 2012 9:11 am 
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848cc
848cc

Joined: Fri Dec 12, 2008 3:07 pm
Posts: 142
Location: tasmania
Hi what is a 12g940 head worth comes with valves and stem collars
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Panthersteve
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PostPosted: Wed Nov 21, 2012 9:58 am 
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1360cc
1360cc
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Joined: Sun Apr 09, 2006 4:10 pm
Posts: 6337
Location: Ipswich Qld
used, refurbished, cracked, crack tested, etc etc :?: :?: :?:

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crabby
 Post subject: head
PostPosted: Wed Nov 21, 2012 11:27 am 
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848cc
848cc

Joined: Fri Dec 12, 2008 3:07 pm
Posts: 142
Location: tasmania
no just been pulled down to get redone to run ulleaded no cracks
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drmini in aust
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PostPosted: Wed Nov 21, 2012 11:42 am 
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Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39764
Location: near Baulkham Hills, NSW
If uncracked I'd say $150 for a bare 12G940, or $200-250 with valves, springs, caps & collets.

If doing it up properly for unleaded I would bin the valves, springs & guides anyway, but the 1275 caps & collets are worth a bit to buy new.

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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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crabby
 Post subject: head
PostPosted: Wed Nov 21, 2012 11:45 am 
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848cc
848cc

Joined: Fri Dec 12, 2008 3:07 pm
Posts: 142
Location: tasmania
it will only have valves and collets do have springs but need replacing any way :?: so if anyone interested pm me thanks
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drmini in aust
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PostPosted: Wed Nov 21, 2012 12:02 pm 
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Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39764
Location: near Baulkham Hills, NSW
Valve springs weaken with age, also many folks that do a head up then fit them to a motor with high lift cams or rockers. If they leave the stock springs on it they get coilbound by the extra lift, and are usually too light anyway.
New C-AEA526 springs are cheap these days and are good for around 7500-8000rpm and .495" lift, without coil bind.

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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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68Rusty
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PostPosted: Wed Nov 21, 2012 3:34 pm 
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998cc
998cc
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Joined: Thu Jun 17, 2010 8:55 pm
Posts: 724
Location: Central West
A reconditioned one sold for $529 recently on ebay, 22 bids.

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