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Holden 161

What can you guys tell me about these motors?
Looking at one in a HR standard which has 80,000 in on it. Has been fitter with x2 carbs and headers. How does it compare with 186 and 202?
Thanks guys

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It won't have the same gutts as a 202 if thats what your asking I think the X2 carbs will just make it drink and not much more. Theres alot of way over carbed holden 6's out there.

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most of the time I fix things properly, it ends up taking longer when I dodgie it because I have to do it again anyway.

not a real powerhouse, will move the vehicle forward in an acceptable manner. very reliable and usually good for a couple of hundred thousand miles if well serviced. will need a reco head at about 120k miles. if your looking to hot her up, get a 186 / 202 for more punch. if you want to keep the original donk, it will respond to a balance, hot cam and a good port job. the crash box isn't overly strong but should handle the 161 ok

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The 161 will not be very quick, when compared to the 186 with X2 option (twin carbies) as that engine was higher compression.

Unless your 161 has been worked and with a high compression head, then there is no point in throwing more fuel down it with twin carbs as the engine will not be able to burn all the extra fuel - unless it is set up to. Yes you will get a few extra HP if you also have the X2 headers.

The later HR's had the 186S option (dual carbie) and the LC / LJ GTR torana's has a 161S option which has the same dual carbie set up as the 186S - and is set up with stronger engine components and steel crank etc..

So if you have a 161S engine then yes the X2 dual carbies will work fine. If it is a HR then they never had the 202 so if you want to keep it standard then 161,186, 186 X2 or 186S.

Donno

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Donno

Hi Donno, might just be a typo on your post but I have never seen a 161 S with dual carburetors from Factory, I think you meant to say dual throat carburetor as in WW Stromberg?

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://www.holdentorana.com...

With Holden's successful Monaro GTS catering for the full size sporty market, GM-H gave the smaller sector a big shake up with the release of the Torana GTR. This little ripper came with a 2600 S (161 S) engine, a four speed Opel manual transmission, power front disc brakes, a front stabilizer bar, sports suspension and full instrumentation. It was dressed in a choice of bright colours. Front guard flutes, rally stripes and wide sports wheels with matching tyres completed the sporty look.

The 2600 S engine was a slightly smaller version of the HT's 186 S, complete with two barrel carb, twin cast iron exhaust headers, mild profile camshaft and performance valve springs and bearings. The instruments fitted to the GTR were similar to those introduced on the HB Series 2 Brabham Torana.

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Donno

if you have the closed chamber head, get a performance shop to open it up to take the xu1 valves and quality valve springs. it will go a lot better and adding a cam and eleccy distributer will give the crash box a fright. I tried all carb combinations on a warm186 years ago and the x2 combo was the worst. the 186 s strommy was the simplest bolt on and the webber the best for economy and power..(no economy when making good power)

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Thanks guys. If I purchase the car I will get some info from a machine shop on doing some work to the head to cater for better valves and quality valve springs. I would love to get my hands on a 186s to put in it however it appears they are as rare as hens teeth!

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nothing much special about the 186sother than the 2barrel strommy. best 6 I ever saw was a 186 bored 40thou, balanced trick dissy, small chamber head, 12 port conversion with big valves, special porting, expensive springs etc. , speco 10L cam, triple webers...went like a rocket in an fj with a muncie rockcrusher behind it.

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Ive got a 161 HR Standard low compression version - 3 speed. It's original 1967 - never had any work to engine or head - completely stock. I changed most seals/gaskets and welch plugs early this year - the rear main still leaks a bit but better than it was. Engine is smooth, no noises and doesn't burn oil. It doesn't have a lot of power - adequate is the best way to describe - ok up to 60mph doesn't like a real lot more than that sustained whereas - i remember my dad's 186 HT 3 speed was ok at 70mph. Engine has done 220,000 miles. It's a totally original car so have no desire or intention to change anything - just keep it preserved - I don't think a 161 would be the choice if you wanted power - the easiest and cheapest way may be to just put a larger engine in?

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Andrew

I would like to keep the original matching numbers engine. Will look into getting it warmed up a little to help the old girl run a little quicker

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How important do you guys think matching numbers are? Was looking at a HR purchase but found out the motor had been replaced with a rebuilt motor 10 years ago. Apparently vehicle has only traveled 87,000km. I plan on having the vechile for my lifetime so would probably be replacing the engine at some stage anyway.
Thoughts?

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unless the car has some documented history,1 owner etc, and the car is concours condition, I dont think its that important. not many cars still have their original engine.
depends on what you want to do with the car. the best part of these cars is how they look...the driving is 40+ y/o

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