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MG MGB Technical - Help with piston identification

The pictured piston is from an MG, but I am not sure which one it fits. It is 020 oversize, and it measures 2.88 " (73.0 mm) in diameter and 3.03" (76.9 mm) in height. The top of the piston is stamped with '020" 7352 Sp002"

What have I got here?

Thanks in advance.

Mike

M.E. Whalen

The nearest in my book are 1500 B series at 2.875/73.02 mm std, TF1500 at 72mm std, and the WA at 73mm std.

What is the compression height?
Paul Walbran

Paul: Thanks for the id! The piston came with parts that mostly were MGA 1500, so that likely is it. Where is compression height measured?
M.E. Whalen

From the top outer edge of the piston down to the centre of the gudgeon pin.
Paul Walbran

The piston compression heights measure 1.63 inches or 41.6 mm. Still sound like MGA 1500?
M.E. Whalen

Very close - the book listing is 42mm
Paul Walbran

Thanks for al of your help!

Michael Whalen
M.E. Whalen

This thread was discussed between 05/03/2013 and 06/03/2013

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