Holden engine fitting

[calker]

Hi All
I have a land rover ser 111 1974 LWB and need to fit an Holden straight six cylinder engine. Can any body help with the dimensions of the the transition plate to enable correct fitting to gear box any help would be most appriecated.

Chris.................:confused:

[ladas]

Hi All
I have a land rover ser 111 1974 LWB and need to fit an Holden flat six engine. Can any body help with the dimensions of the the transition plate to enable correct fitting to gear box any help would be most appriecated.

Chris.................:confused:

Do you mean a straight six, a flat six is normally a boxter engine - found in porche and the like ?

[calker]

The engine is a straight six an old commodore engine.

Chris..................

[101RRS]

The engine is a straight six an old commodore engine.

Chris..................

If it is the old commodore 202 motor then adaptors are available - however if it is the nissan six that was in the commodores I am not so sure.

Can you tell us why you have to fit this engine as the original four cylinder is a better option - if it is a landy six then I am not so sure.

Garry

[calker]

The original engine is well worn out and has been stood for a long time only does 40kmh.

I just need the adaptor plate and i may sell the old engine if anyone is intrested in reworking it.
Does any one know where i can get a plate or a template to make my own.

Chris........

[discowhite]

dellow automotive;)

cheers phil

[Sprint]

ask phoenix, im pretty sure he has an adapter availible

[Phoenix]

Sorry, My adaptor went with the engine to the bloke I got the land rover motor from. He wanted it for his vehicle, and I wanted his landie motor.

[Lotz-A-Landies]

dellow automotive;)

cheers phil
Dello Automotive would have had to improve dramatically before I would be recommenting one.

The usual rule was out of alignment out of square. The better adapters were the Johnstone Bros out of Geelong or the Roy Sim adapters out of Sydney. There are plenty to be had out of second hand vehicles.

Further to all those neighsayers out there there were/are plenty of Holden conversions out there, set-up correctly they were reliable and cheap to recondition something that can not be said of the Rover six cylinder.

Chris ... You don't say where you are located?

Although they are getting old by now, the 186 Holden from a manual car were always better than the 202. The 202 had less coolant because of the bigger bore and suffered from overheating more than the others, they also used more petrol without producing all that much more performance. Adding an oil cooler is a good option, because it adds additional (cooled) oil capacity to compensate for the lower oil volume in the Holden engine. Another good option was the sump from a HT Holden with the bulge in the centre instead of the front or rear like some models.

Diana

[calker]

many thanks forthe info the motor is; or will be a reworked 186 ute motor and i may now have a kit incl adaptor plate. I thank the forum "Bravo".

[Hoges]

Once you get the 186 fitted take a look at the carby...a Nikki (Niki?) is/was a better option than the original Stromberg/Rochester and fairly easy to fit. Far more reliable and much easier to set the float level...the 186/202 carbys had a tendency for the float arm to bend and this made it difficult to retain the correct mixture balance. Also have a good look at the idle mixture screw...they can become distorted over time and may need to be re-drilled...also makes it difficult to tune at idle unless it is properly seated...!
Overall however, as you said: simple/reliable and max torque occurs @ or below 2000 rpm!
cheers

[calker]

I will print and keep all the info and advice i recieve so thanks for taking time out to give it. I am still after a holden straight six engine adaptor kit i thought i had one but turns out maybe not.

[Bigbjorn]

Once you get the 186 fitted take a look at the carby...a Nikki (Niki?) is/was a better option than the original Stromberg/Rochester and fairly easy to fit. Far more reliable and much easier to set the float level...the 186/202 carbys had a tendency for the float arm to bend and this made it difficult to retain the correct mixture balance. Also have a good look at the idle mixture screw...they can become distorted over time and may need to be re-drilled...also makes it difficult to tune at idle unless it is properly seated...!
Overall however, as you said: simple/reliable and max torque occurs @ or below 2000 rpm!
cheers

Much better is to use a Rochester Quadra Jet with one each primary and secondary throat blocked off. You can readily and cheaply buy intake manifolds for red Holdens to take a small four barrel and make an adaptor plate for the Q-Jet out of aluminium plate. Next best is 2 x 1 3/4" SU's.

[dandlandyman]

The first question has to be - was the Landy originally a six or four cylinder? If it was a four, the front crossmember will have to be cut to clear the radiator. If the original engine wasn't in it when you got it, take a look at the top bellhousing bolt(s). If there is only one top bolt (at 12 o'clock) it was a 4. Two bolts, at about 11 and 1, denote a 6cyl.
The gearbox mounts on a six are about 4 inches further rearward than a 4cyl, which make them better for retrofitting a Holden six into. The propshafts and firewall differ to suit.
202s have a longer stroke than 186s (the same bore, though) and therefore have more torque. A Holden-enthusiast friend of mine has told me on several occasions that 202s are notoriously hard on Holden gearboxes, so Land Rover gearboxes will have a really hard time.
The last thing that comes to mind is your carby. That same friend I just mentioned informed me (once when I was having trouble with timing and idle) that Stromberg carbies from automatic cars have the vacuum advance port drilled in a different place in the throat to make it idle at full advance. Whether this applies to the later Varijet carbs from early Commodores, I couldn't say, but it's something to watch out for.
As for finding a Holden to Land Rover conversion kit, the best place to try are wrecking yards. Even if they don't have Landies, you never know what loose Holden engines may be wearing. Good luck.

Dan.
69 2A 88" pet4, 74 3 109" pet4, 68 2B FC pet6.