Re: 3.0 Liter Engine Rebuild

[George Graves <gmgraves@xxxxxxxxxxx>]

1. The liners between the 164S and the Milano 3.0 liter engine would be 
the same, however, the pistons are likely different because the 164S 
has a 10.5/1 compression ratio, and the  Milano is 9.5/1.

2. Most modern re-builders with whom I have spoken seem to almost 
unanimously recommend manganese-bronze valve guides. These are used by 
IAP for their factory refurbished heads, as does Sperry, IIRC.

3. First of all, I think you will find that buying a refurbished set of 
heads from IAP in Virginia for a $800 a pair/exchange is preferable to 
doing the job yourself, or having it done by a myriad of specialists 
all over creation. The heads will come to you resurfaced for flatness, 
with new high-tech valves, valve guides, seals and silicone-chrome 
springs. Then you can take the finished head to any good racing or 
speed shop and have them ported and relieved as this is not a task in 
any way special to the Alfa motor. I have heard (and get this confirmed 
from someone who is more of an expert than I am; don't take my word for 
it) on the other hand, that if one over polishes Alfa intake ports, it 
degrades performance, rather than enhances it.

As for recommending places to have this work done, since you give no 
indication of where you are located, it would be difficult to help you 
out there.

George Graves
'86 GTV-6
now with 3.0 liter 'S' engine
and Power Steering



On Friday, March 28, 2003, at 11:45 AM, alfa-digest wrote:


> Date: Fri, 28 Mar 2003 10:48:26 -0800
> From: "Dennis Baba - MTB EC" <dennis@domain.elided>
> Subject: 3.0 Liter Engine Rebuild
>
> Hello, I have several questions about rebuilding a 3.0 liter Milano 
> engine
> that I am going to put in my gtv6.
> 1. What is the difference between 164S liners and pistons, and Milano 
> liners
> and pistons?
> 2. What is the best type of valve guide to use in my engine?
> 3. Where should I get any kind of head work done, ie: valves, porting 
> and
> polishing, etc.?
> Thanks,
> Dennis
>
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