I got a head for a friend of mine and it has some major port work done, wondering what it is.
Numbers say:
7420081
D154
Thanks.
9 port head I.D
Started by
_Terrible One_
, Jul 22 2006 05:12 PM
5 replies to this topic
#2
Dr Terry
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Posted 23 July 2006 - 11:58 AM
Hi Terrible One.
The number you quote is a 179 casting & the date code reads 15th April 1964.
The 179 head is almost the same as a 186 head, same combustion chamber & valve size & rocker studs. Originally they had 1 less hole in the front face , where the lower thermostat housing bolts on, to suit the early (smaller) housing.
Dr Terry
The number you quote is a 179 casting & the date code reads 15th April 1964.
The 179 head is almost the same as a 186 head, same combustion chamber & valve size & rocker studs. Originally they had 1 less hole in the front face , where the lower thermostat housing bolts on, to suit the early (smaller) housing.
Dr Terry
#3
makka
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A m��se once bit my sister
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Posted 23 July 2006 - 02:18 PM
Dr Terry could you please post up all the casting numbers, this could make this a sticky and make it easier for everyone to ID heads.
cheers
Cohen
cheers
Cohen
#4
_Terrible One_
_Terrible One_
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Posted 25 July 2006 - 10:05 AM
That head was no good.
Howbout this number:
7437395
Howbout this number:
7437395
#5
Dr Terry
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Posted 25 July 2006 - 12:50 PM
Hi Guys.
This is a standard 186 head, same as above with the extra water hole that I mentioned.
Dr Terry.
This is a standard 186 head, same as above with the extra water hole that I mentioned.
Dr Terry.
#6
_Terrible One_
_Terrible One_
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Posted 25 July 2006 - 05:58 PM
Is it possible that either of these heads were Yella Terra? I understand that they modified Holden heads and sold them as YT, is this correct?
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