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Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Mar 2016
Posts: 844
Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Mar 2016
Posts: 844 |
I've got a Rover V8 engine with the code 47A04702B, capacity believed to be 3.9ltrs
From reading all the Rover V8 identification charts I can get my hands on, they seem to agree it was an engine originally supplied to Morgan. Thing is, NONE of these charts have any dates on when the block was produced (its essential for an upcoming IVA test)
I've written to the factory, but as yet have had no reply.
Any ideas?
thanks
Simon
Series 1 Aero 8
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Joined: Jan 2011
Posts: 112
L - Learner Plates On
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L - Learner Plates On
Joined: Jan 2011
Posts: 112 |
For what it's worth my 1992 registered 3.9 Plus 8 has the engine number 47A01026A.
I've no reason to think the engine is not the original one.
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Joined: Feb 2010
Posts: 1,415
Has a lot to Say!
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Has a lot to Say!
Joined: Feb 2010
Posts: 1,415 |
Hi Simon
Give John Eales at JE Developments a call.
There's not much he doesn't know about Rover V8's
01455 202909
Simon @ Sifab.co.uk
Simon @ Sifab.co.uk
Sifabtemporary@gmail.com
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Joined: Feb 2012
Posts: 5,659 Likes: 10
Charter Member
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Charter Member
Joined: Feb 2012
Posts: 5,659 Likes: 10 |
Morgan fiited the 3.9 between june 1990 and 1997 after which the 4.6 was fitted. I book does not quote the switch over month.
Martin (Deano)
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Joined: Jul 2007
Posts: 28,909 Likes: 354
Salty Sea Dog Member of the Inner Circle
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Salty Sea Dog Member of the Inner Circle
Joined: Jul 2007
Posts: 28,909 Likes: 354 |
During that period the engine morphed in the 4.0 (still a 3.9) but with GEMS electronics rather than the "hotwire" fi system.
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly
'11 MINI Countryman Cooper D All4
'90 LR 90 SW
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Joined: Dec 2009
Posts: 37,474 Likes: 988
Tricky Dicky Member of the Inner Circle
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Tricky Dicky Member of the Inner Circle
Joined: Dec 2009
Posts: 37,474 Likes: 988 |
Mine is a 1999 3.9 with original engine 47A0707B. It seems a digit short but that's what is in the registration book.
2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev
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Joined: Oct 2007
Posts: 322 Likes: 3
Learner Plates Off!
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Learner Plates Off!
Joined: Oct 2007
Posts: 322 Likes: 3 |
My 3.9 starts with 47A289 and was in build at the end of 1994
Assuming they ran numerically it would put 47A04702B later
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Mike Smith
2007 +4
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Joined: Dec 2008
Posts: 22,370 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,370 Likes: 354 |
Morgan fiited the 3.9 between june 1990 and 1997 after which the 4.6 was fitted. I book does not quote the switch over month. But the 3.9 was also available from 1997!!
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Dec 2008
Posts: 22,370 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,370 Likes: 354 |
From a recently produced book:  June 1997 Dealer Notice: "As it has not been possible to obtain the current Range Rover 4.6 litre engine, due to supply problems with Rover and because of the modifications required for installation, we have arranged for a special engine to be prepared. This uses the current 3.9 litre engine, but built using the standard 4.6 litre block. This involves stripping a new engine, removing the block, specially modifying a 4.6 litre block to accept the front cover, and rebuilding the engine. This produces a special unit using largely standard Rover parts. The distributor set-up is largely the same as 3.9, as is the camshaft and ECU. The block is cross bolted for strength. The crank, pistons and block are standard Range Rover 4.6".
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Feb 2012
Posts: 5,659 Likes: 10
Charter Member
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Charter Member
Joined: Feb 2012
Posts: 5,659 Likes: 10 |
Morgan fiited the 3.9 between june 1990 and 1997 after which the 4.6 was fitted. I book does not quote the switch over month. But the 3.9 was also available from 1997!! Does that mean it continued along side the 4.6 as an option?
Martin (Deano)
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