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

[Ben Swann]

I have an NF bottom end, but wouldn't compression be too high, or just about
right?

Ben
----- Original Message ----- 
From: "Jim Green" <jeg1976 at yahoo.com>
To: "Ben Swann" <benswann at comcast.net>
Cc: "Quattro list" <quattro at audifans.com>
Sent: Thursday, January 08, 2004 11:55 PM
Subject: Re: 7A to 3B conversion using 7A head and MC2 block?


>
> --- Ben Swann <benswann at comcast.net> wrote:
> > If I were to obtain a 7A engine and 3B ECU, sensors
> > and harness, what would be necessary to convert the
> > 7A to a 3B?  Could I use an MC-2 bottom end and 7A
> > and pretty much have the 3B configuration.
>
> Nope, you'll have way to low compression since the
> volume in the head on the 20v is larger than the 10v.
> The only thing that will get you close is an NG bottom
> end.
>
>
> > I presume I'd need to source an EM, Is the intake
> > different?
>
> Yes, and yes, the intake is totally different.
>
> HTH,
>
> =====
> Jim Green
> '89 80q ... slow
> '89 90tq .................fast
> http://www.mswanson.com/~jgreen/car_home.html
>
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