Hi fellas,

Will the headers and engine pipes from a 186S Monaro bolt straight into a LC GTR?

David

Mike, just out of interest, did the LC XU-1 (or LJ XU-1) engines with cast exhaust manifolds have the same exhaust manifold as 186S-2600S-2850S with the heat tube for the auto choke? I know you touched on this in the above post, but i've always wondered and never rely wholly on parts catalogues as they often tell lies especially with later revisions.

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If we all had the same (good) taste, who would buy all the Fords?

Hi Mike here,
couldn't agree more, many parts were upgraded and part number remained unchanged.

Engine mounts and plates on the late 1971 Toranas were strengthened this carried on till end of production of the LJ's and into following models, this is just one example, there are plenty more.
( don't ask if they were same as HQ because they weren't )

The question was about Torana hedders but as you ask HR X2 had two intake manafold versions to add to the above list
according to my parts book they were interchangable meaning that neither were drilled for the heat tube, this is clearly wrong and also indicates any replacement manafold for either model would be fitted with the heat tube.
Note that in the case of Toranas the reverse situation applied so technically LJ's should not have the drilled out ones, BUT as we all know there were parts over runs and old stock which will have the same part numbers.

I suppose the truth would be that after the LC's finished production where all Holden manafolds will have had the heat tube there would have been an over run period where either one would have been factory fitted so by 1973 they should all have been the undrilled ones, except for old stock ones supplied as a spare part, this of course only applies till the 14th of August on XU-1's when the first ever extractors were fitted as standard fitment.
Back to LC XU-1's this could also mean that in 1973 a replacement for a 1970 XU-1 heat tube manafold could have been an undrilled one, due to superseeded numbers.

LJ GTR never had hedders anyway because they do not fit with the standard single carbie intake manafold.

Perhaps something can be cleared up for me also.
My Holden Book states that the first X2 engines had twin carbies like the HD to 186 K 162700
and WW Stromberg from 186K 162701 so are you saying that my book is wrong and it should read 186S from 186S 162701?
Or are you saying that the 186K 162701 had 186S decals fitted!
I agree the X2 manafolds are different to the later versions that we started discussing.
None of the X2 manafold numbers match the later versions but as we know the numbers can lie, it would only take the front manafold to be an assembly with studs to have a different number!
On re reading this it would appear that the late HR front manafold was drilled out for the tube with the number remaining the same, then by the HK they actually cahanged the part number to the right number for such a manafold, so somewhere someone will have a superseeded part number list and may answer this question.
The rear one is different as stated above.

Mike

Purpul Police

Edited by user Sunday, 29 August 2010 10:29:48 PM(UTC)  | Reason: Not specified

This type of thread is what keeps me comming back here. Informed, logical discusion, without having to wade through 2 pages of wewreck/itch/bosco/dirtywhatever she called herself drivel.

Intelligent questions, informed answers. Thanks to all concerned.

One pair of hands working does more than a thousand pairs praying.

quote:

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Originally posted by Mike81973
Perhaps something can be cleared up for me also.
My Holden Book states that the first X2 engines had twin carbies like the HD to 186 K 162700 and WW Stromberg from 186K 162701 so are you saying that my book is wrong and it should read 186S from 186S 162701?
Or are you saying that the 186K 162701 had 186S decals fitted!

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To clarify what Byron has said the X2/S saga goes like this:-

1. All HD X2s have a 179X prefix & are fitted with 2 x single barrel Bendix-Stromberg carbies.
2. The HR 186 X2 was only available from release up to May 1967 with the same twin carby manifold & carbies & the last one made had engine number 186K162700.
3. HR from May 1967 onwards, the 186S was then sold (with the WW 2-barrel) & used the same 186K prefix as the 186 X2 (the HR 186S was 186K162700 onwards).
4 HK/T/G 186S engines had a 186S prefix.

Dr Terry

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When calculating a car restoration budget, be as accurate as you can & then double the final figure. It will be closer to the truth.