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HQ 350 - Help to identify correct part numbers
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Allaboutthenumbers Offline
#1 Posted : Thursday, 23 August 2018 8:05:27 PM(UTC)
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Hi all, sure you've probably had this question a few times already.
Looking for the correct part number / date code and location of both for the following, in reference to 1971 Sept built 350 HQ Coupe.

Intake manifold
Distributor

Thanks for your help
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Allaboutthenumbers Offline
#2 Posted : Thursday, 23 August 2018 8:07:42 PM(UTC)
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Sorry manual car
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HK1837 Offline
#3 Posted : Friday, 24 August 2018 1:58:48 AM(UTC)
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Pretty sure the dizzy is the same as most HK-HG with SBC design engine. 1111150. Specs are the same but for some reason those pre 1973 HQ’s are listed as 11111500 in the HQ service manuals. Could never figure out the exact reason for the number change, I discussed this a bit in the article in one of the Just Holdens back issues. From memory the final HG 350 manual cars with the Canadian engine list the same dizzy but listed as 1111500 (one less 1), but still the same specs.
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LS350 Offline
#4 Posted : Friday, 24 August 2018 2:06:02 PM(UTC)
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6/71 hq
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HK1837 Offline
#5 Posted : Friday, 24 August 2018 2:50:17 PM(UTC)
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^^That’s the one. I could never figure out why the number change from 1111150 to 1111500 when the specs didn’t change. The only clue I ever found was that 1111500 was possibly a spare part number in North America for 1111150, and 1111150 ceased being a production distributor by the end of 1969. GMH appeared to have been given 1111500 for the final HG engines and for HQ up to a point where they changed to a later US spec dizzy.
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Allaboutthenumbers Offline
#6 Posted : Friday, 24 August 2018 8:44:11 PM(UTC)
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Cool, thanks for your input guys.
So the distributor I'm looking for is 1111500 with date code 1 A,B,C OR D THEN XX.
Is that correct, as I understand, most parts for 71 cars were up to around Aprilish.

Intake I think I've worked out as 3973469 K then 1 to 12. With a date code same as distributor?
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LS350 Offline
#7 Posted : Saturday, 25 August 2018 7:33:11 AM(UTC)
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yes dissy is 1111500

manifold is right 3973469 with K1 to ?

have not found date code on manifold but I will look closer today.

some people are selling K marked manifolds saying the fit HQ's but make sure on the pass/side there is only 2 bolt holes

in the centre were it bolt's to the head, not 4 as the extra 2 holes are for an A/C bracket.THe HQ's only used the head bolts for

this bracket.
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HK1837 Offline
#8 Posted : Saturday, 25 August 2018 11:58:24 AM(UTC)
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Unless total concours is your goal just use one off a 307. Same curves and looks the same, just one less 1 and the extra 0 on the HQ one!

Edited by user Saturday, 25 August 2018 2:28:54 PM(UTC)  | Reason: Not specified

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LS350 Offline
#9 Posted : Saturday, 25 August 2018 12:46:06 PM(UTC)
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HK1837 Offline
#10 Posted : Saturday, 25 August 2018 2:32:09 PM(UTC)
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That’s the one, easy to find as common to all HK-HG except the last HG manuals and IIRC the 1968 Impala and Parisienne. Lots in the USA too, off 1968 L73 and there were huge amounts of them made.
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Allaboutthenumbers Offline
#11 Posted : Sunday, 26 August 2018 9:44:04 PM(UTC)
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Originally Posted by: HK1837 Go to Quoted Post
Unless total concours is your goal just use one off a 307. Same curves and looks the same, just one less 1 and the extra 0 on the HQ one!


Hey Byron,Total Concours only way for this car, have not been on here for a long time but you know the car. Just getting back into collecting number and date correct parts and info for it. I will no doubt have more questions.
Cheers
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Allaboutthenumbers Offline
#12 Posted : Sunday, 26 August 2018 9:48:37 PM(UTC)
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Originally Posted by: LS350 Go to Quoted Post
yes dissy is 1111500

manifold is right 3973469 with K1 to ?

have not found date code on manifold but I will look closer today.

some people are selling K marked manifolds saying the fit HQ's but make sure on the pass/side there is only 2 bolt holes

in the centre were it bolt's to the head, not 4 as the extra 2 holes are for an A/C bracket.THe HQ's only used the head bolts for

this bracket.


Thanks for that, did not know about the extra 2 holes. Will keep this in mind.I thought there is a date code on the lower section behind the dizzy and in front of the part number.
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LS350 Offline
#13 Posted : Monday, 27 August 2018 7:33:04 AM(UTC)
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Will have a closer look but there is no casting date code it maybe stamped .
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LS350 Offline
#14 Posted : Monday, 27 August 2018 11:07:11 AM(UTC)
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Found the date codes one is D 23 1 the other is B 5 1.If you locate a correct manifold check under the heat shield for holes in the exhaust passage.Itcan be repair but costly.

Edited by user Monday, 27 August 2018 6:55:07 PM(UTC)  | Reason: Not specified
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Allaboutthenumbers Offline
#15 Posted : Monday, 27 August 2018 10:30:52 PM(UTC)
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That's Awesome thanks for the tip. Can't beat learning from someone else's experience.
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Allaboutthenumbers Offline
#16 Posted : Monday, 27 August 2018 10:36:12 PM(UTC)
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So next piece of the puzzle.... I need a tailshaft. My understanding is they were painted purple and possibly the same as a 1 tonne ute shaft?
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justgm Offline
#17 Posted : Tuesday, 28 August 2018 3:11:47 PM(UTC)
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Hi , not the same as 1 Tonner , they have 121' wheelbase , wagon/statesman /ute all 114' & sedan & 4 door all 111' . thanks Mark.
life is good in "Wine & Holden Marlborough "
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HK1837 Offline
#18 Posted : Tuesday, 28 August 2018 3:36:01 PM(UTC)
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Same uni joints though.
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LS350 Offline
#19 Posted : Tuesday, 28 August 2018 4:54:05 PM(UTC)
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yes one tonner uni's and purple but paint is very poor looks like overspray
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Allaboutthenumbers Offline
#20 Posted : Tuesday, 28 August 2018 8:16:25 PM(UTC)
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Thanks guys, so in short, any HQ sedan tailshaft with 1 tonne unis.
No difference between 6 and 8 sedan tailshaft, just uni joints?
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