Just wondering in what month in 1971 did the LC GTR get an engine upgrade to a 173 and a wooden gear shift knob?? As I bought a scanned copy of an advertisement from a magazine on ebay showing a LC GTR with these items.
LC GTR - 173 Engine
Started by
GTRXU1
, Dec 20 2007 10:55 PM
23 replies to this topic
#1
GTRXU1
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Posted 20 December 2007 - 10:55 PM
#2
Bazza
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Posted 20 December 2007 - 11:29 PM
Hi GTRXU1
The earliest examples that I can find with the engine number recorded are:
Brisbane 30/6/71
Adelaide 5/7/71
I am almost certain that a wooden gearshift knob has never been a standard fitting.
Hope this helps
Bazza
The earliest examples that I can find with the engine number recorded are:
Brisbane 30/6/71
Adelaide 5/7/71
I am almost certain that a wooden gearshift knob has never been a standard fitting.
Hope this helps
Bazza
#3
rodomo
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Posted 20 December 2007 - 11:44 PM
I was chatting about this tonight with a couple of other forum members.
Did the 173 LC GTR have a WW2?
Did the 173 LC GTR have a WW2?
#4
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Posted 21 December 2007 - 12:45 AM
Hi
Yes the late LC GTR also used the same head, carby, headers etc. as the 2600S. The additional capacity resulted in an additional 5hp (130 compared to 125).
From another thread:
If you are looking for a LC GTR carby the numbers to look for are...
23-3041 = 161S GTR
23-3048 = 173S GTR
Bazza
Yes the late LC GTR also used the same head, carby, headers etc. as the 2600S. The additional capacity resulted in an additional 5hp (130 compared to 125).
From another thread:
If you are looking for a LC GTR carby the numbers to look for are...
23-3041 = 161S GTR
23-3048 = 173S GTR
Bazza
#5
GTRXU1
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Posted 21 December 2007 - 02:08 AM
Does anyone with a restored July 71 - Dec 71 LC GTR have images of the engine bay and centre console please??
#6
_gtr161s_
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Posted 21 December 2007 - 06:30 AM
Pity my 4/71 gtr didnt have a 173s I could do with that extra 5HP - look out thats tyre smokin' power 
#7
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Posted 21 December 2007 - 01:51 PM
PM Loneoranger,he should know this answer as I'm pretty sure he bought one new when the 173 became an option on the lc gtr.
#8
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Posted 22 December 2007 - 03:49 PM
GTRXU1 I wonder if the 173S is the reason the LJ GTR has a stock 202 ,A member of my car club had one (green) sold it years ago and still kicking himself,he says it had a larger cam than the 2600S more like the early XU1 cam and went like a rocket.they may have been to close in performance to the XU1 for street application, if that combination was used in conjunction with a 202 in the LJ GTR.Has anyone got one. it would be nice to know just how well they go .
#9
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Posted 22 December 2007 - 04:29 PM
I was just talking to another owner with a 173 GTR his is not on the road but has just reconditioned the engine ,his version it a 2600S cam and the head has different valve springs from standard ,like the 2600S ,but has the later style rockers.His didn't have a wooden gear knob ,but a black depress knob and an Aussie 4 speed.
#10
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Posted 26 December 2007 - 01:37 AM
In the published literature (I am our club's librarian) there is very little information on the LC GTR from July - January 1971. There is nothing I can find on it in Spotlight on Holden Torana LC-LJ, including XU-1 & GTR-X, or Holden Torana GTR XU-1 by Fiv Antoniou, or the history of TORANA from Viva to Victory, or Holden Torana 1967-1980 complied by Ewan Kennedy.
Although there is one small mention in AMC on page 41.
It would be interesting to find out if anyone has an LC Parts Catalogue printed between July 1971-January 1972 for the 173 for the LC GTR and they could find any differences in parts Nos for a LC Parts Catalogue for the 161, ie camshaft, head nos, manifolds etc as it was mentioned above the difference in Carby nos is noted.
I also wonder for anyone who reads this post who may have a copy of, Modern Motor or Wheels or other car magazine I would say from around May - August 1971 that might have published an article on the revised LC GTR getting the newer engine and any other changes??
I know we have covered, what makes an 71, 72 or 73 Bathurst XU-1 to death but there is very little information on the LC GTR with 173, therefore I think I will post a new thread, What makes a LC GTR Jul 1971.
It would be interesting to see if they are any other notable differences besides engine sizes???
Although there is one small mention in AMC on page 41.
It would be interesting to find out if anyone has an LC Parts Catalogue printed between July 1971-January 1972 for the 173 for the LC GTR and they could find any differences in parts Nos for a LC Parts Catalogue for the 161, ie camshaft, head nos, manifolds etc as it was mentioned above the difference in Carby nos is noted.
I also wonder for anyone who reads this post who may have a copy of, Modern Motor or Wheels or other car magazine I would say from around May - August 1971 that might have published an article on the revised LC GTR getting the newer engine and any other changes??
I know we have covered, what makes an 71, 72 or 73 Bathurst XU-1 to death but there is very little information on the LC GTR with 173, therefore I think I will post a new thread, What makes a LC GTR Jul 1971.
It would be interesting to see if they are any other notable differences besides engine sizes???
#11
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Posted 26 December 2007 - 02:28 AM
In addtion to the introduction of the M20 gearbox over the Opel as being the other obvious change.
Also in the advert as originally mentioned in the first post a new rocker cover sticker was added all black with 2850 in red with an S in front of the Oil Cap and plain chrome carby cover.
If anyone has access to NASCO Accelerator Magazine during the period of Jul 1971 - Jan 1972 there maybe be information on the LC GTR in there
Also in the advert as originally mentioned in the first post a new rocker cover sticker was added all black with 2850 in red with an S in front of the Oil Cap and plain chrome carby cover.
If anyone has access to NASCO Accelerator Magazine during the period of Jul 1971 - Jan 1972 there maybe be information on the LC GTR in there
#12
lcgtrrob
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Posted 26 December 2007 - 09:50 AM
I found some old pictures,probably the same as the brochures you already have,they also have the wooden gear knob 
#13
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Posted 26 December 2007 - 10:04 AM
just a few more scans for all to copy. on the lc gtr 173 it says about the high performance cam shaft ?
#14
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Posted 26 December 2007 - 10:09 AM
Do you own that brochure? I would LOVE ultra-high resolution scans. Some of those pics could be excellent reference AND wall papers.
#15
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Posted 26 December 2007 - 10:11 AM
also someone else was asking about nasco parts list. if these pics dont turn out clear go to my photobucket site and take them from there.memorabilia section.
cheers graham
cheers graham
#16
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Posted 26 December 2007 - 10:13 AM
yes i have heaps of lc stuff. i bought all pops,ss stuff off him when he sold his gtr.Do you own that brochure? I would LOVE ultra-high resolution scans. Some of those pics could be excellent reference AND wall papers.
#17
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Posted 26 December 2007 - 10:18 AM
forgot to say the fist scan on the 173 gtr is dated june 71
#18
_gtr161s_
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Posted 27 December 2007 - 10:31 AM
I have the lc gm parts catologue issued april 1973 with the LJ supplements
Has some interesting holden part numbers relating to the 2600s 2850s and 186x
Camshaft :
2600s - # 7428531
186x - # 2815739
2850s & 186x (stamped XH) - #2823364
Head complete :
2600s 9.2:1 CR - # 2807144
2850s 9.4:1 CR - # 2820514
186x - # 2824280
Crankshaft assy are the same on the 2250, 2600 & 2850 only difference quoted is auto or manual
Inlet manifold :
2600s - # 7434447
2850s - # 7433690
Air cleaner assy :
2600s - # 2810338
2850s - # 2820464
Exhuast manifols :
2600s 2850s & 186x front - # 7433655
2600s 2850s & 186x rear - # 7430583
Exhuast pipe and resonator assy :
2600s 2850s 1 3/4" O.D. - # 2810318
Interesting with the muffler assy because the 186x could have had a "seperate tail pipe" , "forked tail pipe" or Twin tail pipes" and the 2600s & 2850s share the same mufflers.
I've never really sat down and studied this book except for the stuff i was chasing but it is an interesting read.
I might be opening a can of worms but if there's a number someone is after I'll have a look when i can
Kev
Has some interesting holden part numbers relating to the 2600s 2850s and 186x
Camshaft :
2600s - # 7428531
186x - # 2815739
2850s & 186x (stamped XH) - #2823364
Head complete :
2600s 9.2:1 CR - # 2807144
2850s 9.4:1 CR - # 2820514
186x - # 2824280
Crankshaft assy are the same on the 2250, 2600 & 2850 only difference quoted is auto or manual
Inlet manifold :
2600s - # 7434447
2850s - # 7433690
Air cleaner assy :
2600s - # 2810338
2850s - # 2820464
Exhuast manifols :
2600s 2850s & 186x front - # 7433655
2600s 2850s & 186x rear - # 7430583
Exhuast pipe and resonator assy :
2600s 2850s 1 3/4" O.D. - # 2810318
Interesting with the muffler assy because the 186x could have had a "seperate tail pipe" , "forked tail pipe" or Twin tail pipes" and the 2600s & 2850s share the same mufflers.
I've never really sat down and studied this book except for the stuff i was chasing but it is an interesting read.
I might be opening a can of worms but if there's a number someone is after I'll have a look when i can
Kev
#19
dpz
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Posted 27 December 2007 - 01:38 PM
Hi Kev
what I've noticed with the parts catalogue is...
The part number listed isn't always the one on the car...
eg inlet manifold 2600S 7434447 was a replacement part number.... not what the 2600S had from factory.
it gets kinda tricky...
7433677 is what my 173S inlet manifold says. I think it is the right one. This could, however, have been changed over the years. Does anyone know??
what I've noticed with the parts catalogue is...
The part number listed isn't always the one on the car...
eg inlet manifold 2600S 7434447 was a replacement part number.... not what the 2600S had from factory.
it gets kinda tricky...
7433677 is what my 173S inlet manifold says. I think it is the right one. This could, however, have been changed over the years. Does anyone know??
#20
_gtr161s_
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Posted 27 December 2007 - 02:35 PM
I wonder if the inlet mani you have is off a 186s ?
I have'nt looked at my 2600s to see whether it has the right parts, I'll start to rebuild it in the new year.
I'll be on the hunt for a grill badge, which going by the part numbers is the same as the other 3. I do have an LJ GTR grill badge so maybe a swap will get me out of trouble.
I have'nt looked at my 2600s to see whether it has the right parts, I'll start to rebuild it in the new year.
I'll be on the hunt for a grill badge, which going by the part numbers is the same as the other 3. I do have an LJ GTR grill badge so maybe a swap will get me out of trouble.
#21
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Posted 28 December 2007 - 07:51 AM
i dont mind doing that for anyone, just not sure how ?Do you own that brochure? I would LOVE ultra-high resolution scans. Some of those pics could be excellent reference AND wall papers.
#22
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Posted 28 December 2007 - 08:26 AM
Kev,
I'm pretty sure that the 186X ( or 3100X ) had a single piped muffler assembly which I know is different to the 2600s and the 2850s GTR's.
Does anybody know the part number for the 3100X mufflers ???
Calling Dr Terry ???????
L
I'm pretty sure that the 186X ( or 3100X ) had a single piped muffler assembly which I know is different to the 2600s and the 2850s GTR's.
Does anybody know the part number for the 3100X mufflers ???
Calling Dr Terry ???????
L
#23
_gtr161s_
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Posted 28 December 2007 - 08:51 AM
the parts book lists 3 different items under muffler assy for the 186x
muffler assy - separate tail pipe # 2816104
muffler assy - forked tail pipe # 2810323
muffler assy - twin tail pipes # 2823707
but it lists only one part number under Pipe - Muffler Tail
Would have been interesting to see what these items looked like as there arent any pics for the 186x exhuast
muffler assy - separate tail pipe # 2816104
muffler assy - forked tail pipe # 2810323
muffler assy - twin tail pipes # 2823707
but it lists only one part number under Pipe - Muffler Tail
Would have been interesting to see what these items looked like as there arent any pics for the 186x exhuast
#24
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Posted 15 April 2014 - 01:02 PM
Hi Kev,
Here is the third Muffler #2823707:-
the parts book lists 3 different items under muffler assy for the 186x
muffler assy - separate tail pipe # 2816104
muffler assy - forked tail pipe # 2810323
muffler assy - twin tail pipes # 2823707
but it lists only one part number under Pipe - Muffler Tail
Would have been interesting to see what these items looked like as there arent any pics for the 186x exhuast
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