I'm sure lucky8 does

 

Erik is working on it, too. I have struck out horribly so far.

When this information become known I will formulate some serious metadata so our childrens' children can find it!

 

You might call or email Turner Engineering. I'm sure if anyone would have the specs they would.
I'll also mention that I'm fairly certain that the rod bolts are TTY single use (from an engine rebuilding perspective) bolts. Ask Turner about also, for verification.

 

I left vm for Steve at Cannibal and am hunting a more specific email address for Turner now.

 

Here's the conrod bolt info I was referring to:
Turner Engineering ERR 1772 Conrod Bolt - Set 16

As for clearances, the shop could make sure the big end bore is not out of round, install the new shells and rod to the the crank (using the old bolts) and check the final clearance with plastigauge and, if correct, refit the bearing caps using the new bolts.

 

METADATA: discovery,4.6,connecting rod housing size or bore,oval,elliptical,crank tunnel,SECRET MEASUREMENTS,WHY CANT THIS BE FOUND,STUPID/BAD/SECRETIVE LAND ROVER/TATA MOTORS,minimum and maximum, SHTF, ovaltine,slurpee,inches for imperialists,RODS,BEARINGS,BORE,keys to success,round,joy,STICKY,closely guarded secret for some reason

HERE IT IS:

low 2.189 (some use 2.187, but 2.189 is generally accepted) to high 2.191, for both 4.6 and 4.0 rods. (NO THAT IS WRONG)

THANK YOU CANNIBAL v8 and all others who searched!

THE OPPOSITE OF A THANK YOU TO D&D!

EDIT: Further thank you to Turner Engineering. The correct answer is 2.313 +/- .0005

Best,

Charlie V

 

Only 5 days and umpteen searches. Ridiculous
Glad you found the specs you need

 

On a lark I googled "land rover 4.6 connecting rod big end bore dimensions" and found 2.185"
Buick 215 Rover 3.5 Land Rover 4.0 and 4.6 differences

Then I found this:
HELP! Big end bore spec - Defender Source
I completely forgot about this thread, of course it was 5 years ago.

 

You are an Internet ninja! I read one or both of those links before but couldn't find the right measurement. I'm going to go with Cannibal's for better or worse. They are engine ninjas.

 

Well, AC (Tom) is the NINJA OF ALL NINJAS. This morning, all of my rod housings mic'd at 2.3xx. SO I called Steve back and 2.189-2.191 is the JOURNAL measurement (I guess... this is all over my head). We miscommunicated... or I miscommunicated. Anyway, Thanks, AC!!!

So the correct rod bore is 2.315. I asked Steve if there is a range and he said 2.315 so that's what I told the shop and they aren't happy about it.

EDIT: I got another answer from Turner Engineering... see below