| I recently bought an MGA.  I knew that it had an MGB block because I checked 
this before buying, but everything else looked pretty much stock MGA.  I 
have since realized I have an MGA 1500 head on the engine.  I am not sure if 
MGB valves are in it or not, or how to tell.  Also, I don't know what this 
will do to my performance,or engine longevity.  It seems like the 
compression ration would be very high.  I seem to be getting a lot of upper 
rpm power, but I haven't checked the carb tuning or timing yet.  Any 
thoughts on this configuration??  I know it is common to put an early B head 
on a MGA block, but an A head on a B block, I just don't know much about this.
Phil Bates
58 MGA
67 MGB
75 Jaguar XJ12C
52 MG TD replicar (VW)
 |