Visit our Twitter feed for more great content

The 100-Six Forum

Engine Block Casting Number

Moss Motors
AutoShrine Sponsor
AutoShrine Sponsor
AutoShrine Sponsor
AutoShrine Sponsor

59AH100-6 Jon Bill
Auburn, IN, USA   USA
I have a 1959 100-6 BN6. The I. D. plate on the engine has been removed by a previous owner. Cast into the left side of the block is the code "20 M 7". Does anyone know what this means? Is it a date code? Thanks!

. Hide banner ads & support this website by becoming a > Gold Supporting Member <

To add your reply, or post your own questions

Registration is FREE and takes less than a minute!

Having trouble posting or changing forum settings?
Read the Forum Help (FAQ) or contact the webmaster

Join The Club

Sign in to ask questions, share photos, and access all website features

Your Cars

1966 Austin Healey 3000 BJ8

Text Size

Larger Smaller
Reset Save

Sponsor Links