7A to 3B conversion using 7A head and MC2 block?

Marc Swanson mswanson at sonitrol.net
Mon Jan 12 11:54:07 EST 2004


> Alan,
> 
> Just getting caught up with last weeks emails.
> 
> Are you suggesting using the 7A Pistons (and rods?) with the NF/NG crank and
> block? Or 7A pistons, rods, and crank?  Or??
> 
> Ben

> > Ben, you're going to have problems using a NF/G pistons because there are
> no
> > valve pockets...and there is not enough meat there to cut them in and
> retain
> > enough metal to keep from burning through IMHO.   I'd recommend using 7A
> > pistons and a thick head gasket.



Just to clarify, you do NOT need to grind the NG/NF pistons with the 7A
head, the dish in the top of the piston is deep enough to clear the
valves.

-- 
-Marc
87' 4ktq
88' 90q
www.mswanson.com/audi



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