V8 Engine Numbers

[101RRS]

Can someone please tell me whether this part engine number is from a 4.0 or a 4.6 V8

?44D01724A

Thanks

Garry

[Lotz-A-Landies]

44D 4.0 R.R efi 8.13:1 CR 1994 onwards

[101RRS]

OK - thanks - a 4.0 or a 4.6??

Cheers

Garry

[Lotz-A-Landies]

Sorry I guess you didn't get to see the rest of the DB it's a 4.0

[101RRS]

I have done some searches and they indicate 4.0 engine numbers should start with 42D not 44D.

Likewise the 4.6s start with 46D or 48D depending on CR. 4.2 litres start with 40D and the 3.9s 35-38D

All so confusing.

All Rover V8 Engine Numbers (http://www.capriracing.co.uk/RoverV8EngineNumbers.htm)

PS is this engine in fact a P76 4.4 engine?? 44D??

[Lotz-A-Landies]

If you know the answer why ask the question?

Factory 3.9 Litre Engines
47A00001 Morgan +8 9.35:1 CR EFI
37A40P0000 TVR Chimaera 9.8:1 EFI
47A40P0000 TVR Chimaera 9.8:1 EFI
30G00001 Land Rover Defender Japan 9.13:1 EFI
31G00001 Land Rover Defender 50LE 9.13:1 EFI
35D00001 R.R Disc efi Man 9.35:1cr 1988 onwards
36D00001 R.R Disc efi Auto 9.35:1cr 1988 onwards
37D00001 R.R Disc efi Man 8.13:1cr 1988 onwards
38D00001 R.R Disc efi Auto 8.13:1cr 1988 onwards
Factory 4.2 Litre Engines
40D R.R 4.2 efi 8.94:1cr 1992 onwards
Factory 4.0 Litre Engines
42D R.R efi 9.34:1 CR 1994 onwards
44D R.R efi 8.13:1 CR 1994 onwards
57D R.R efi 8.13:1 CR 1998 onwards
58D R.R efi 9.34:1 CR 1998 onwards
92D R.R efi 8.13:1 CR Canada 1998 onwards
95D R.R efi 9.34:1 CR NAS 1998 onwards
Factory 4.6 Litre Engines
46D R.R efi 9.34:1 CR 1994 onwards
48D R.R efi 8.12.1 CR 1994 onwards
59D R.R efi 8.12:1 CR 1998 onwards
60D R.R efi 9.34:1 CR 1998 onwards
93D R.R efi 8.12:1 CR Canada 1998 onwards
96D R.R efi 9.34:1 CR NAS 1998 onwards

P76 engines were a numeric only number starting 440..., 441... etc

[101RRS]

If you know the answer why ask the question?


Thanks Diana, but I don't know the answer that is the problem - non of my research shows a 44D in the Rover line up - I appreciate your lists do have it listed. The list I put up, as well as others did not have the 44D listed.

I have since concluded that the P78 V8 does start with 44 but does not seem to have the D in it (research was look at p76 ads with engine numbers listed).

Thanks for your help.

Cheers

Garry

[Lotz-A-Landies]

Yes the early P76 were 440... then 441...

I had engines in both sequences (or is it merely a continuation of the same sequence?)

[bee utey]

Yes the early P76 were 440... then 441...

I had engines in both sequences (or is it merely a continuation of the same sequence?)

P76 engine prefixes were 44xx style with the xx being numerals depending on items fitted on the production line, ie 4400 was manual no a/c or p/s, up to 4416 for auto a/c p/s Executives I believe. As there were only about 20 000 P76's they didn't run out of 4 digit engine numbers (after the 44xx prefix). I have most of the prefixes in a genuine manual somewhere if anyone is interested. A bloke in WA tabulated all the data from P76 production he could find as the factory destroyed their records in 1974-5.

[Lotz-A-Landies]

P76 engine prefixes were 44xx style with the xx being numerals depending on items fitted on the production line, ie 4400 was manual no a/c or p/s, up to 4416 for auto a/c p/s Executives I believe. As there were only about 20 000 P76's they didn't run out of 4 digit engine numbers (after the 44xx prefix). I have most of the prefixes in a genuine manual somewhere if anyone is interested. A bloke in WA tabulated all the data from P76 production he could find as the factory destroyed their records in 1974-5.Were the Terrier truck 4.4s in the P76 sequence?

[bee utey]

Were the Terrier truck 4.4s in the P76 sequence?

I believe so, but don't have that data in the car manual. I have seen a few Terrier engines and I'm sure they fitted the pattern. BTW "4400" was auto, no accessories.

[bee utey]

Another source says Terrier engines were 4417 prefix.

[PLR]

Can someone please tell me whether this part engine number is from a 4.0 or a 4.6 V8

?44D01724A

Thanks

Garry

G`day ,

44D is the first of the 4.0ltr crossbolted P38a as in 1994 and is the lower compression ratio . ( 42D is the Higher compression ratio of the date )

57D is the next 4.0ltr crossbolted P38a of the lower ratio and began in 1998 when they had supposedly started grading the blocks , i have a failed one of these in a box in the shed .

Also have in use an 86D which is one of the later 4.0ltr crossbolted P38a of the lower ratio .

Why do you say "part" engine number ? If there is a letter infront it may be an S but other wise isn`t that number complete ?

Peter

[101RRS]

Why do you say "part" engine number ? If there is a letter infront it may be an S but other wise isn`t that number complete ?

Peter

Thanks for the information - the pic I had of the engine number seemed to have something a little obscured in front of the first 4 hence I initially thought there was another number in front.

The engine attached to the engine number was being advertised for sale as a 4.6 and caught my interest hence the queries on what the engine actually was. I have advised the seller that it is a 4.0 and not a 4.6 and he has amended the ad accordingly. I thought I had got onto a cheap 4.6 so am a bit disappointed.

Garry

[Geezer]

Hi All,

I have recently purchased an SIII with a V8 installed.
The engine number is 35515612B which I thought was an 1970-83 Range Rover engine. However, a serch on the internet sugested the engine number should end with 1C,D,E or F and not 2B as mine does.
Can anybody kindy shed any light on this so I know what I am dealing with, thanks. :angel:

Cheers
Graham

[Lotz-A-Landies]

Graham

I wouldn't worry too much about the "B" you have to go from "suffix A" and "suffix B" to get to "suffix C" and the "355" is the correct prefix for a early Range Rover RHD. You'd have to hit the early RR books and particularly the "Rover Service Bulletins" to identify what were the changes/specification of your "B" suffix.

The rest of the number "15612" is the actual serial number of your engine.

Diana

[Geezer]

Thanks Diana,
Thought as much, as I'm new to early V8's its worth asking those with way more knowledge than myself...

Cheers
Graham

[p38arover]

thought I had got onto a cheap 4.6 so am a bit disappointed.


Buy it and fit the 4.6 crankshaft, rods, and pistons that you now have.

[Lotz-A-Landies]

Buy it and fit the 4.6 crankshaft, rods, and pistons that you now have.Don't let anyone ever say you're slow off the mark Ron! ;)

[101RRS]

Buy it and fit the 4.6 crankshaft, rods, and pistons that you now have.

I do regret not getting that 4.0 now but at the time I did not know the 4.6 internals would be coming along. It was apparently in good nick.

I have a lead on another low km 4.0 that had a blown head gasket - it is at the back of the engine near one of the water outlets so may actually have been a blown gasket rather than a slipped liner. Even if it is a slipped liner the relevant cylinder is known and might be worth just top hatting that cylinder - but I will need to pull it down to check it all out.

On the basis of what I have learnt through AULRO I would say the centre two liners on the right hand bank of the 4.6 block I have now (thanks Ron), have slipped. The liners are perfectly lined up so on initial inspection all seems OK, however all the other cylinders have the usual carbon build up but these two are nice and clean from the steam cleaning associated with slipped liners.

I would probably run with this block if I could find a Rover engine expert who could assess the block's suitability for relining - there is no one local and I would have to send it to Melbourne or Sydney for assessment. If the block is cracked at the bottom of these liners then even with top hats the water chamber in the block is likely to be open at the bottom.

Cheers

Garry

[PLR]

Hi All,

I have recently purchased an SIII with a V8 installed.
The engine number is 35515612B which I thought was an 1970-83 Range Rover engine. However, a serch on the internet sugested the engine number should end with 1C,D,E or F and not 2B as mine does.
Can anybody kindy shed any light on this so I know what I am dealing with, thanks. :angel:

Cheers
Graham


G`day Graham ,

355 prefix is certainly is an early one , with the B it should be 8.25:1 compression ratio but if it had F suffix it should be 8.13:1 compression ratio .

All the previous suffixes A,B,C,D E are all 8.25:1 .

As Dianna mentions the the suffix can tell
firstly if it is an emmision controlled engine or not (B isn`t )... the carb type ..the needles they wear ...the needle adjustment .( top or bottom )...the tuning procedure(1,2,3,4 methods)..distributor type ...timing degrees (at what fuel oct rating)..sparkplug type and gap...Lastly Comp ratio .


Peter

[Geezer]

Thanks Peter,

The engine does indeed have 8.25:1 CR stamped above the engine number, with what looks like little Leyland stamps either side of it?

[101RRS]

Factory 3.9 Litre Engines
47A00001 Morgan +8 9.35:1 CR EFI
37A40P0000 TVR Chimaera 9.8:1 EFI
47A40P0000 TVR Chimaera 9.8:1 EFI
30G00001 Land Rover Defender Japan 9.13:1 EFI
31G00001 Land Rover Defender 50LE 9.13:1 EFI
35D00001 R.R Disc efi Man 9.35:1cr 1988 onwards
36D00001 R.R Disc efi Auto 9.35:1cr 1988 onwards
37D00001 R.R Disc efi Man 8.13:1cr 1988 onwards
38D00001 R.R Disc efi Auto 8.13:1cr 1988 onwards
Factory 4.2 Litre Engines
40D R.R 4.2 efi 8.94:1cr 1992 onwards
Factory 4.0 Litre Engines
42D R.R efi 9.34:1 CR 1994 onwards
44D R.R efi 8.13:1 CR 1994 onwards
57D R.R efi 8.13:1 CR 1998 onwards
58D R.R efi 9.34:1 CR 1998 onwards
92D R.R efi 8.13:1 CR Canada 1998 onwards
95D R.R efi 9.34:1 CR NAS 1998 onwards
Factory 4.6 Litre Engines
46D R.R efi 9.34:1 CR 1994 onwards
48D R.R efi 8.12.1 CR 1994 onwards
59D R.R efi 8.12:1 CR 1998 onwards
60D R.R efi 9.34:1 CR 1998 onwards
93D R.R efi 8.12:1 CR Canada 1998 onwards
96D R.R efi 9.34:1 CR NAS 1998 onwards



Follow on question for a supposedly 4.0 V8 but the "dot" style engine number and "dot" style compression ratio has been removed and a new number stamped on with old style stamps - looks like they had a couple of goes at it.

The number starts with 55D. Any ideas on this??

Thanks

Garry

[101RRS]

Bump - anyone got any ideas

[Lotz-A-Landies]

Sorry Garry I've exhausted my references.
57
58
59are the closest prefixes I get.

Are you sure that the numbers are all stamped correctly and not another digit incorrectly stamped?

[101RRS]

Sorry Garry I've exhausted my references.

57
58
59

are the closest prefixes I get.

Are you sure that the numbers are all stamped correctly and not another digit incorrectly stamped?

I was exhausted too - I checked all of the above posts including the ones that you provided information for and drew a blank - that was why I asked.

I rang TRS in SA to ask if the 55 prefix may indicate one of their engines and they confirmed that the original engine number (the dot matrix type) often gets removed in the re manufacturing process but they record the old number first and then manually restamp the number back on.

This is a pic of the number that clearly shows the 55DO at the start - all I can assume is that when the top had liners were put in the block, the engine shop has its own numbering sequence but I have no idea who did the work.

http://i42.photobucket.com/albums/e334/gazzz21/Forum%20Posts%20Album/P5070055.jpg

Thanks

Garry

[Davehoos]

56D00001 disco II EFI MAN 9.35cr 3.9
maybe

http://www.v8forum.co.uk/RoverV8FactoryEngineNumbers.htm

[101RRS]

Thanks but I don't think so - the 55 stamp is pretty clear (but could be a mistake) - also I did not think the 3948cc (3.9) was in the Disco 2. The engine I have is a low compression 4.0 (dished pistons??) and cross bolted mains.

I think the number is a made up number - means something to someone but does not seem to be a "factory" number.

Cheers

Garry

[Hoges]

the clear (black) numbers seem to have been punched over the top of other markings (numbers?)....

[101RRS]

Yes - the original number would have been in the later "dot matrix" format and in addition to the engine number would have also had the compression ratio stamped on it. This method of marking the block is basically on the surface of the metal and when the block is decked eg when being top hatted this engine number is erased - hence when the work is completed the engine number is restamped manually. It looks like they had a couple of goes with this one.

Garry

[PLR]

G`day ,

none of my stuff lists 55D .

However if you Google 55D Rover V8 you`ll find , for sales , around yr 2001 manual and Auto D2s with 55D engine numbers given , at least one in Qld and in Tas both listed as 4.0 ltr .

Also you`ll find listings for serpentine belts and water pumps that give 55D as a reference .

I`d guess the reason for the stamping of your block would be to do with the tophats fitting and cleaning up the block surface because this is a common way to loose the definition of the engine number when the block is skimmed .

After any engine has been worked on the only way to know what you have is by measuring .

Peter

As you Ebay 180847082973 , 2000 D2 engine # given SSD 03639A , if we take SS as being 55 ?

[101RRS]

Peter,

Thanks for that very useful information - the engine is a 4.0 but the 55D prefix does not appear on any official engine number list I can find.

I just wanted to confirm the that the engine number I have was "real".

As you have found if you google 55D plenty comes up and can apply to either 4.0 engines in Aust or 4.6 engines overseas. There is even an LPG company that lists LPG kits for the 55D.

So on this basis the engine number refers to a Thor 4.0 - exactly what it is. I just wonder why the 55D prefix does not appear on the major engine number lists.

Thanks

Garry

[Ports]

Here is another one:cool:

My D2 originally had a 56D engine number, but now has an engine with something completely different.

Current motor is dot matrix style imprint CR 9.35:1 and engine prefix of
S88D

This prefix no-one seems to mention, yet it appears factory?
Anyone able to tell me more about the source and details of this motor?

[PLR]

G`day ,

the dots and the S ,

means it`s a Landrover Factory replacement as in came here in a crate not a vehicle .

From my searching there are no listings for these engines .

Some were blocks with pistons ,crank, ETC and some had cams and heads ETC as well .

9.35:1 is the basic UK ratio

[Pierre]

S74DxxxxxA is the service replacement engine in my P38 fitted in 2002 at Lance Dixon (Melb) after loose liner probs.

So there's another number for the books!

Pete:)