A good day to all,







After 2 hours with the search function, I thought I'd bite the bullet and post a query regarding the many(?) different series of the 20b motor. I faintly remember reading a post which covered all the series with specific mention to the 'D' series being stronger(?) or with better redesigns.







Thank you very much in advance to any who can help me out on this. Just for knowledge's sake =)







Cheers

 

they were numbered like this



0-999

A series is A0-A999

B series is B0-B999

C series is C0-C999

D series is D0-D999



the later the engine the better. the irons get thicker, and the eshaft is better too. i wanna say the change was with the start of the D series, but i'm not sure.



and also its not like the earlier engines suck

 

Many thanks for the quick reply.







Cheers

 

Sorry for being long-winded, I forgot to add this question into the first post as well.



How do I tell which series a 20b block is from? Visual identification cues or similar?



Thanks in advance.



Cheers

 

the numbers were stamped into the top of all the housings. if they've been ground out, then its been rebuilt somewhere along the line

 

should also be on some of the plates same place as the housings ones are located,

 

Thank you all







Cheers

 

http://cgi.ebay.com/ebaymotors/Mazda-20B-3...1QQcmdZViewItem