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77mm A12 block

Subject: 77mm A12 block
by ddgonzal on 2021/9/16 0:59:43

For sale at auction

https://aucview.aucfan.com/yahoo/k493441051

Seller says it's an A15 and indeed the engine stamp says 'A15' however the 5 is off kilter

H85 is the B310 Sunny 1978-1982 A12 block with 73mm bore. A15 is 76mm. Can these later A12s be bored out to 77mm? I wonder if an A15 crank would fit in there

After thinking about it I marked up some of the photos to show the identifying features. It has a 77mm bore and is marked 'A15' but otherwise is a short-deck A12 block