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Author: | crabby [ Wed Nov 21, 2012 9:11 am ] |
Post subject: | head |
Hi what is a 12g940 head worth comes with valves and stem collars |
Author: | Panthersteve [ Wed Nov 21, 2012 9:58 am ] |
Post subject: | |
used, refurbished, cracked, crack tested, etc etc ![]() ![]() ![]() |
Author: | crabby [ Wed Nov 21, 2012 11:27 am ] |
Post subject: | head |
no just been pulled down to get redone to run ulleaded no cracks |
Author: | drmini in aust [ Wed Nov 21, 2012 11:42 am ] |
Post subject: | |
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. |
Author: | crabby [ Wed Nov 21, 2012 11:45 am ] |
Post subject: | head |
it will only have valves and collets do have springs but need replacing any way ![]() |
Author: | drmini in aust [ Wed Nov 21, 2012 12:02 pm ] |
Post subject: | |
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. |
Author: | 68Rusty [ Wed Nov 21, 2012 3:34 pm ] |
Post subject: | |
A reconditioned one sold for $529 recently on ebay, 22 bids. |
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