V8 Engine Numbers

Quote:

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Originally Posted by 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

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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

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?

Quote:

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Originally Posted by Lotz-A-Landies

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

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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

Bump - anyone got any ideas

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?

Quote:

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Originally Posted by Lotz-A-Landies

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?

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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/e3...m/P5070055.jpg

Thanks

Garry

56D00001 disco II EFI MAN 9.35cr 3.9
maybe

http://www.v8forum.co.uk/RoverV8Fact...ineNumbers.htm

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

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

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