Rover V8 engine number query

General Chat About Engine Build

Moderator: phpBB2 - Administrators

Post Reply
Posts: 2
Joined: Fri Mar 08, 2019 4:03 pm

Rover V8 engine number query

Post by Neil71 » Fri Mar 08, 2019 4:15 pm

I have just bought a rover V8 engine and on looking through the lists of engine numbers I can find that my engine was possibly from a P6 3500S but the compression number doesn't match.
On the engine block it states
9.25:1 CR
Along with the engine I also have a 4 speed gearbox mounted.
Any advise greatly appreciated as I plan to strip and rebuild engine before I fit it to my 1975MGB GT.
Cheers and thanks in advance.

Forum Contributor
Forum Contributor
Posts: 4060
Joined: Fri Feb 26, 2010 4:27 pm
Location: SW London, UK

Re: Rover V8 engine number query

Post by DaveEFI » Fri Mar 08, 2019 7:11 pm

My first RV8 was in a '69 P6 3500 - an auto - which had the 10.5? :1 engine. Which positively zoomed up to maximum revs. I later had the lower compression '74 P6 3500S. Which never seemed as lively even with the manual box. And I did fit a new camshaft. Often wondered if Rover fiddled the output figures for those engines.

Have you checked the sticky on engine numbers?
London SW
MegaSquirt2 V3
Tech Edge 2Y

Post Reply

Return to “Engines Area”