Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Login


Take the time to read our Privacy Policy.
173 head numbers - 9 port
Options Go to last post Go to first unread
Previous Topic Next Topic
David HR Offline
#1 Posted : Wednesday, 2 June 2021 5:30:34 PM(UTC)
David HR

Rank: Member

Reputation:

Groups: Registered
Joined: 30/05/2020(UTC)
Posts: 19
Australia
Location: Perth
what are the id numbers for for all 173 heads
Back to top
Dr Terry Offline
#2 Posted : Friday, 4 June 2021 10:51:47 AM(UTC)
Dr Terry

Rank: Veteran

Reputation:

Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,064

Thanks: 1 times
Was thanked: 203 time(s) in 184 post(s)
The only head numbers I have for 173 engines are 2811929 for HG/HQ/HJ/LJ/LH/LX (pre-ADR27A) & 2815843 for the ADR27A Red Motors. Lo-Comp motors just use the equivalent 202 head.

I'm not sure about the 173 Blue Motor head, the only number I have is 92013755, but it is unconfirmed.

Dr Terry
If at first you don't succeed, just call it Version 1.0
Back to top
HK1837 Offline
#3 Posted : Friday, 4 June 2021 12:07:14 PM(UTC)
HK1837

Rank: Veteran

Reputation:

Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,728

Thanks: 1 times
Was thanked: 513 time(s) in 489 post(s)
There should be two 173 blue heads, early and the later one with the air pump. Unless the early one had the bosses there undrilled?
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords?
Back to top
Dr Terry Offline
#4 Posted : Friday, 4 June 2021 12:22:55 PM(UTC)
Dr Terry

Rank: Veteran

Reputation:

Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,064

Thanks: 1 times
Was thanked: 203 time(s) in 184 post(s)
Originally Posted by: HK1837 Go to Quoted Post
There should be two 173 blue heads, early and the later one with the air pump. Unless the early one had the bosses there undrilled?


There's probably more than that, due to the different A/C compressor mounts in that era. Also from memory there were 2 different locations for the temperature sender. Again they could be the same casting, but differently machined.

Dr Terry
If at first you don't succeed, just call it Version 1.0
Back to top
kevrev Offline
#5 Posted : Friday, 4 June 2021 5:15:51 PM(UTC)
kevrev

Rank: Member

Reputation:

Groups: Registered
Joined: 5/04/2013(UTC)
Posts: 39

Thanks: 2 times
Was thanked: 5 time(s) in 5 post(s)
The 1973 LC parts catalogue list 2811930 for low comp 2850 engine (same as 202) and 2823850 for high comp
Back to top
HK1837 Offline
#6 Posted : Friday, 4 June 2021 5:37:29 PM(UTC)
HK1837

Rank: Veteran

Reputation:

Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,728

Thanks: 1 times
Was thanked: 513 time(s) in 489 post(s)
Parts catalogues list part numbers, not casting numbers. They are rarely the same thing. However my LC parts catalogue lists the correct casting numbers as part numbers for the bare heads for 2850 and CB/CC prefix 2250, ie 2811929 and 2811930. However the part numbers listed for the 2250L/2250H and 2600L/2600H are different to the casting numbers, ie 7438300 and 7438299.
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords?
Back to top
David HR Offline
#7 Posted : Saturday, 5 June 2021 12:11:37 PM(UTC)
David HR

Rank: Member

Reputation:

Groups: Registered
Joined: 30/05/2020(UTC)
Posts: 19
Australia
Location: Perth
What is 7438300 and what is 7438299 are they 173 or 202 heads?
Back to top
HK1837 Offline
#8 Posted : Saturday, 5 June 2021 2:03:20 PM(UTC)
HK1837

Rank: Veteran

Reputation:

Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,728

Thanks: 1 times
Was thanked: 513 time(s) in 489 post(s)
They are part numbers for 138/161/186 heads.
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords?
Back to top
David HR Offline
#9 Posted : Saturday, 5 June 2021 2:29:19 PM(UTC)
David HR

Rank: Member

Reputation:

Groups: Registered
Joined: 30/05/2020(UTC)
Posts: 19
Australia
Location: Perth
What is this ID number for 2823850
Back to top
kevrev Offline
#10 Posted : Saturday, 5 June 2021 5:21:30 PM(UTC)
kevrev

Rank: Member

Reputation:

Groups: Registered
Joined: 5/04/2013(UTC)
Posts: 39

Thanks: 2 times
Was thanked: 5 time(s) in 5 post(s)
I thought I gave that part number 4 posts up, 2850(173) high compression
Back to top
Dr Terry Offline
#11 Posted : Sunday, 6 June 2021 10:06:48 AM(UTC)
Dr Terry

Rank: Veteran

Reputation:

Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,064

Thanks: 1 times
Was thanked: 203 time(s) in 184 post(s)
Originally Posted by: David HR Go to Quoted Post
What is this ID number for 2823850


I don't have that one listed as a head casting number. It does appear as a part no. though.

Dr Terry
If at first you don't succeed, just call it Version 1.0
Back to top
David HR Offline
#12 Posted : Sunday, 6 June 2021 11:41:09 AM(UTC)
David HR

Rank: Member

Reputation:

Groups: Registered
Joined: 30/05/2020(UTC)
Posts: 19
Australia
Location: Perth
Cheers for that Dr Terry

What is the biggest over bore size advisable for a 186?
Back to top
Dr Terry Offline
#13 Posted : Sunday, 6 June 2021 6:38:35 PM(UTC)
Dr Terry

Rank: Veteran

Reputation:

Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,064

Thanks: 1 times
Was thanked: 203 time(s) in 184 post(s)
Originally Posted by: David HR Go to Quoted Post
Cheers for that Dr Terry

What is the biggest over bore size advisable for a 186?


In my experience 0.040" was the most common "safe" overbore, this resulted in 190 ci.

0.060" was also common (192 ci)

0.080" was less common (194 ci,) but needed a good block.

Dr Terry
If at first you don't succeed, just call it Version 1.0
Back to top
David HR Offline
#14 Posted : Sunday, 6 June 2021 8:58:14 PM(UTC)
David HR

Rank: Member

Reputation:

Groups: Registered
Joined: 30/05/2020(UTC)
Posts: 19
Australia
Location: Perth
Cheers for that, i have a block 40 thou over.
Back to top
Smitty2 Offline
#15 Posted : Sunday, 6 June 2021 9:51:48 PM(UTC)
Smitty2

Rank: Member

Reputation:

Groups: Registered
Joined: 6/07/2019(UTC)
Posts: 384
Australia
Location: bayside Melbourne

Thanks: 238 times
Was thanked: 28 time(s) in 28 post(s)
Originally Posted by: HK1837 Go to Quoted Post
There should be two 173 blue heads, early and the later one with the air pump. Unless the early one had the bosses there undrilled?



cannot comment on the airpump.. but there are two as far as i know.

one with a boss for the temp sender unit at the front and another with the sender unit at the back of the head

the one with the sender at front should say 9947487 between the rocker mount bosses and the other?
.. I have 2 numbers and cannot ascertain which is correct, this also clouded by 173/2850 engines being
fitted to VK (for special govt and export orders)




Club circuit racing...the best fun you can have with your pants on
Back to top
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF | YAF © 2003-2024, Yet Another Forum.NET
This page was generated in 0.102 seconds.