Which country would you like??
UK spec engines used an AE piston #18802 published as 8.7:1
US spec engines used an AE piston #19354 published as 8.0:1
The Peter Burgess book is based on UK information.
Actual compression ratings are going to depend on what head you use
and what head modifications. The 73-74 US spec Austin Marina heads for
instance had the larger intake valves, that would change compression
slightly.
Kelvin.
> -----Original Message-----
> From: Rick Jennings [mailto:ahhclem@kcnet.com]
> Sent: Friday, February 11, 2000 12:42 PM
> To: mgs@autox.team.net
> Subject: MGB head upgrades
>
>
> Has anyone any direct experience, opinions or advice regards
> the cylinder
> head upgrades described by Peter Burgess in his Power Tuning the MGB
> engine? There seem to be some discrepencies. He shows Rubber
> Bumper engine
> compression at 9.0 to 1. I have seen it listed other places
> as 8.0 to 1.
> Anyone know which is right?
>
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