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HK 337 307 M21
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HK1837 Offline
#21 Posted : Sunday, 13 November 2016 9:05:25 AM(UTC)
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I'd say you are correct Terry, the end of red motor production would have been at the close of HZ and VB schedule, so they knew exactly how many of each was required. My point was though L32 remained until the very end of red motor production and usage with HZ.
It is also possible it was intended to have the XT5 engines ready for VB and also there was most likely a Holden range update planned for the same time hence why VB was given L36. However with the cancellation of WA and the subsequent reshuffle to have HX and HZ things got out of whack?
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castellan Offline
#22 Posted : Sunday, 13 November 2016 9:39:20 AM(UTC)
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L21 is from HK 161 low comp to 173 HZ low comp = base engine maybe, but the LD2 starts from the LC 161 low comp as we have 138 red as well as 4cyl in Torana.
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HK1837 Offline
#23 Posted : Sunday, 13 November 2016 11:22:21 AM(UTC)
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There will be some logic behind it all but why LC has LD2 and HK had L21 for the same engine is not immediately obvious. They both had L22 and LD1 in common and when 202 became available in Torana both Holden and Torana shared L20 and L23, plus when 138 replaced 130 as the export engine in HJ , LH and HJ again shared the LD6 engine code.

As Terry says it also gets weird with VB where the LD1, L23 and L31 remain but 3.3HC gets L14 and 4.2HC gets L36.
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8D11PCH2 Offline
#24 Posted : Sunday, 13 November 2016 4:46:32 PM(UTC)
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The differing codes for the same engine may be to do with the Holden's engines at that time being rated in Cubic Inches and the Torana's engines being rated in Cubic Centimetres. Although it doesn't explain why the HQ 202 & LJ 3300 engines used the same codes.

Edited by user Sunday, 13 November 2016 4:49:19 PM(UTC)  | Reason: Cause I wanted to.
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HK1837 Offline
#25 Posted : Sunday, 13 November 2016 6:41:56 PM(UTC)
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Originally Posted by: 8D11PCH2 Go to Quoted Post
The differing codes for the same engine may be to do with the Holden's engines at that time being rated in Cubic Inches and the Torana's engines being rated in Cubic Centimetres. Although it doesn't explain why the HQ 202 & LJ 3300 engines used the same codes.


Or why Holden and Torana both used L22 and LD1 for 138HC and 173HC. And later both used L20 and L23 for 202HC and 202LC

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detective Offline
#26 Posted : Monday, 14 November 2016 7:30:28 AM(UTC)
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Were the engine codes used to define an engine package ? I.E all ancillaries fitted (carby, alternator etc.). If so it may've been to do with the jetting of the carburettor allowing for the different weights of the cars, or some other obscure detail.....??
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castellan Offline
#27 Posted : Monday, 14 November 2016 8:01:42 AM(UTC)
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LD1= 161&173 LC-J-H-X-UC, HK-T-G-Q-J-X-Z, VB-C-H-K
L22= 130 LC-J HK-T-G-Q
L20= 202&186 LJ-H-X-UC, HK-T-G-Q-J-X-Z,
L23= low comp 202&186 LJ-H-X-UC, HT-G-Q-J-X-Z, VB
LD6= low comp 138 LC-J-H
LD2= 138 LC-J-H
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Dr Terry Offline
#28 Posted : Monday, 14 November 2016 11:56:46 AM(UTC)
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Originally Posted by: castellan Go to Quoted Post
LD1= 161&173 LC-J-H-X-UC, HK-T-G-Q-J-X-Z, VB-C-H-K
L22= 130 LC-J HK-T-G-Q
L20= 202&186 LJ-H-X-UC, HK-T-G-Q-J-X-Z,
L23= low comp 202&186 LJ-H-X-UC, HT-G-Q-J-X-Z, VB
LD6= low comp 138 LC-J-H
LD2= 138 LC-J-H


I beg to differ. When I was compiling my books, I found many anomalies with engine codes. I've done a cut & past from various sections to demonstrate what I found.

I checked many catalogues from different eras & they all agreed with this:-

HK to HZ

130 6-Cyl (Export Only) L22
161/173 6-Cyl Lo Comp L21
161/173 6-Cyl Hi Comp LD1
186/202 6-Cyl Lo Comp L23
186/202 6-Cyl Hi Comp L20
186 'S' 6-Cyl L66
253 V8 Lo Comp L33
253 V8 Hi Comp L32
308 V8 L31

WB

3.3 Litre (202 ci) 6-Cyl Hi Comp L14
4.2 Litre (253 ci) V8 L36
5.0 Litre (308 ci) V8 L31

LC-UC

2130 (130 ci) 6-Cyl (Export Only) L22
2250 (138 ci) 6-Cyl Lo Comp LD3
2250 (138 ci) 6-Cyl Hi Comp LD6
2850 (173 ci) 6-Cyl Lo Comp LD2
2850 (173 ci) 6-Cyl Hi Comp LD1
3300 (202 ci) 6-Cyl Lo Comp L23
3300 (202 ci) 6-Cyl Hi Comp L20
3300 (202 ci) GTR XU1 XU1
4.2 Litre (253 ci) V8 L32
5.0 Litre (308 ci) V8 L31
5.0 Litre (308 ci) V8 L34 L34

VB-VK (Including red motors)

2.85 Litre (173 ci) 6-Cyl Hi Comp LD1
3.3 Litre (202 ci) 6-Cyl Lo Comp L23
3.3 Litre (202 ci) 6-Cyl Hi Comp L14
3.3 Litre (202 ci) 6-Cyl EFI LL9
4.2 Litre (253 ci) V8 L36
5.0 Litre (308 ci) V8 L31
5.0 Litre (304 ci) V8 LV2

Dr Terry

Edited by user Monday, 14 November 2016 12:03:36 PM(UTC)  | Reason: Not specified

If at first you don't succeed, just call it Version 1.0
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