Engine Questions

["piper_pa20" <piper_pa20@xxxxxxxxxxx>]

I am working on two projects now.  Besides putting my 73 Javelin back 
together, I'm building up an NOS 343 short block for my 69 AMX.   I got the 
heads (090 casting) back from the shop today.  BTW, the shop had a set of 
the new Edlebrock aluminum heads so I got to see them for the first time.  I 
passed along the info I got here on the list about the valve springs being 
too strong for proper cam breakin.  I don't know if it will do any good, but 
the machinists there seem very concientious and the recognize me as an AMC 
guy.

Anyway, the NOS short block is a 3195528 casting service replacement block 
(with the 360 ground off the  block).  It has been converted to 7/16 head 
bolts with what appear to be threaded inserts.  If I could remove these I 
would use 1/2 inch head bolts, but I have not yet attempted it.

Questions:
The pistons are marked with A, B, C, or D with grease pencil.  Would this be 
a  weight designation?

What are the specs for the stock cam (343 with flat top cast pistons)?  I 
have an original Sig Erson cam and will use it if it will enhance 
performance.

Thanks,
Joe Fulton
Salinas, CA